QW527 NES New Bark State Callege of Agriculture At Gornell University Sthaca, N. B. Library ALBERT R. MANN LIBRARY New York STATE COLLEGES OF AGRICULTURE AND HUMAN ECOLOGY AT CORNELL UNIVERSITY ee om ae Jit ty db lo Jewretee, (cet history of British ferns. ah DATE DUE History of British ferns. LONDON: E. NEWMAN, PRINTER, 9; DEVONSHIRE STREET, BISHOPSGATE, A HISTORY OF BRITISH FERNS, BY EDWARD NEWMAN, MEMBER OF THE IMPERIAL L. C. ACADEMY, FELLOW OF THE LINNEAN, ZOOLOGICAL, AND BOTANICAL SOCIETIES, PRESIDENT OF THE ENTOMOLOGICAL SOCIETY OF LONDON, &c., &c., &. LONDON: JOHN VAN VOORST, PATERNOSTER ROW. M.DCCC.LIV. One N55 so i= ; Monographers, come from whence they may, have, I think, fair pre- tence to challenge some regard and approbation from the lovers of Natural History ; for as no man can alone investigate all the works of Nature, these partial writers may each in his department be more accurate in their discoveries and freer from errors than more general writers, and so by degrees may pave the way to an universal correct Natural History. — Gilbert White. AS A Tribute to the Memory oF Sohn Hay, WHOSE MATCHLESS TALENT FIRST ELUCIDATED Che British Ferns, This HPumble Monument, INTENDED TO Allustrate the Species, IS ERECTED Ho an Ardent Admirer. Classitication. It is impossible for the candid mind to dwell for a moment on the fact that Britain produces only about one-fortieth part of the ferns already known as inhabiting the globe, without perceiving the impracticability of arranging that fractional part in anything like a connected series. Select one British species, Capillus-Veneris, for instance, and we shall find that there are at least a hundred exotic species which approach it more closely than any that occur in Britain : therefore, assum- ing that two thousand ascertained ferns constitute a connected chain, it follows that in Britain a hundred links are wanting at that part of the chain where Capillus-Veneris is situate. There is still another mode of accounting for some of the monstrous gaps observable in the chain of species. The physical changes perpetually occurring in the condition of the earth’s surface, render large tracts of land incapable of sus- taining any longer certain species which formerly hid the soil with their luxuriant foliage: we know that thousands of such species did exist, and do not exist; but that their history is preserved for ever in Geology, that glorious book whose pages are traced by Nature’s own hand upon tablets of adamant. The hypothesis that Nature is compensating her losses by new Vili INTRODUCTION. creations, requires the recommendation of proof. All our Floras tell a different tale. The links which once connected Equisetum to Chara or to Isoetes have since perished, and no others have been supplied; so that those genera stand alone and insulated, while all around them has disappeared : just as solitary specks of uninhabitable land, peeping up in the boundless ocean, are said to testify of a continent sub- merged. Whoever reads these circumstances aright, will fully appreciate the difficulty under which those are labouring who endeavour to build a system of such scanty materials. Deeply impressed with this difficulty, I have thought it better to preserve intact the arrangement which I originally proposed, than to attempt a new one; at the same time giving an out- line of a plan which I believe more in accordance with Nature. It may here be observed, that in the various systems proposed or indicated by general botanists, as Ray, Linneus, Antoine de Jussieu, Agardh, Perleb, Dumortier, Bartling, Hess, Schultz, Fries, Endlicher, Brongniart, Meisner, Adrian de Jussieu, and Lindley, there is a most evident tendency to depreciate, or rather to under-estimate, the flowerless plants. Whether they were called simply “ flowerless,” as by Ray ; “ Cryptogams,” as by Linneus; “ Acotyledons,” as by the elder Jussieu and Decandolle; little has been done beyond the mere change of name. All these authors appear either to ignore or to disregard the extreme fallacy of divisions founded on a mere positive and negative. Nothing is more simple than the division of all plants into those which have flowers, and those which have not: but something more is required, for positive and negative characters might be made the basis of the most unnatural divisions. Cuvier, in his ‘Animal Kingdom, a work unapproached, perhaps unapproachable, in its masterly and philosophical INTRODUCTION. ix grouping, has shown the plans on which all animals are con- structed. He ignores the positive and negative of vertebrate and non-vertebrate, and employs positive characters only in defining his divisions; these are Vertebrates, Mollusks, Arti- culates, and Radiates: and a little reflection will convince any botanist that there are four great divisions of plants, equally capable of being distinguished by positive characters ; these are Exogens, Endogens, Acrogens, and Thallogens. Acrogens, in common with Thallogens, are without flowers ; “nothing can be found which resembles the stamens and pistils of flowering plants:” they have usually distinct roots, stems, and leaves, the two halves of the latter being generally symmetrical; these characters serving at once to distinguish Acrogens from Sea-weeds, Lichens, or Fungi. Interesting as are the discoveries which Nigeli and his followers have made on the pro-embryo of ferns, and which I had the pleasure of introducing to the notice of British botanists (Phytol. iii. 613 and 925), their bearing on the diagnostic characters of Acro- gens has been wholly misunderstood. Abundant evidence exists that there is in these discoveries no contradiction to the assertion, that Acrogens, so far as our researches have extended, are perfectly asexual. Acrogens are either vascular and Pteridoid, or cellular and Mnioid: the first including all ferns and their allies, and the last, all mosses and their allies. The allies of ferns are Lyco- podiums, Quill-worts, Pill-worts, Marsilias, Equisetums, and Charas: they have sometimes been called Cryptogamic Vascu- lares; but I prefer to define and divide them in the following manner, which, it will be observed, strikingly differs from the most popular and most recent arrangements. The division of the Filicales splits the universally received genera of Pteris, Polypodium, Asplenium, Davallia, and many others. b x INTRODUCTION. ACROGENAZ PTERIDOIDA, Pteridoid Acrogens, or Ferns and their allies, are plants of vascular structure, but which produce fruit without preliminary flowers : they may be divided thus : — FILICALES have distinct leaves bearing one-celled capsules which are encircled by an elastic ring : they comprise : — RuIZOPHYLLACER, in which the leaves are attached to a rhizome or root. CoRMOPHYLLACEZ, in which the leaves are attached to a cormus or trunk. OSMUNDALES have distinct leaves and one-celled capsules detached from the leaves, and not encir- cled by an elastic ring: they comprise : — OSMUNDACE, in which the vernation of the leaves is circinate and the trunk woody. OPHIOGLOSSACEA, in which the vernation of the leaves is straight and the trunk succulent. LYCOPODIALES have distinct leaves and capsules divided by one or more septa: they comprise : — Marsmiacem, in which the capsules are attached to the rhizome or root. Lycopopiace®, in which the capsules are seated in the axils of the leaves. EQUISETALES have no leaves, but consist of an arti- culated branched stem: they comprise : — EqQuisETaczm, in which the fructification forms a ter- minal spike. CHaRace®, in which the fructification is seated in the axils of the branches. It will be scen that the divisions Rhizophyllacee and Cor- mophyllacez have a great similarity to those proposed by Mr. John Smith, of Kew, under the names of Eremobrya and INTRODUCTION. Xi Desmobrya. I believe the idea of using this character as one upon which to found a primary division of the annulate ferns originated with myself, (see Phytol. ii. 278); but Mr. Smith was the first to apply the idea, and to name divisions founded on the differences pointed out. It must, however, be observed, that My. Smith, in his primary divisions, lays great stress on a cha- racter which now appears to me of somewhat secondary impor- tance: I allude to the articulation of the stipes to the rhizome. My own conclusion, from a careful examination of the species within my reach, is, that the grand distinctive characters are these : — First, that the rhizome of the Rhizophyllacee, and the caudex of the Cormophyllacee, are not the same oigan: that the rhizome is a root; the caudex a stem: that the rhi- zome never terminates in a frond; that the caudex always does: indeed, that its apex is constituted of fronds undeve- loped; its trunk, of the bases of fronds that have decayed. Secondly : that the growing apex of a rhizome is always in advance of the fronds; that the fronds are always in advance of the growing apex of a caudex. There are two other and possibly less constant diagnostics: the rhizome of the Rhi- zophyllacee is scaly, the stipes naked; the caudex of the Cormophyllacee is naked, the stipes densely paleaceous: the formation of the fruit of the Rhizophyllacez follows the deve- lopment of the frond; in the Cormophyllacexw it precedes it. In some Cormophyllaceze there is a tendency to approach the Rhizophyllacee : this is strikingly the case in Dryopteris, Phe- gopteris, and Thelypteris ; but it is only necessary to examine the growing apex of the rhizomatiform caudex of these well- known ferns, in order to ascertain that it is always composed of undeveloped fronds. There isa plant familiar to every one who has a garden, that affords an illustration of the two modes of growth, — the common Pyrus japonica. The branches of this beautiful shrub always terminate in a bud, composed of unde- veloped leaves; such branches, therefore, are analogous to the Xli INTRODUCTION. caudex of a cormophyllaceous fern: the roots, on the contrary, spreading horizontally, and near the surface of the ground, never terminate in leaves, but possess the power of originating leaves and leaf-branches at any part of their surface except the growing apex; and not leaves only, but flowers also: such leaf-bearing roots are striking analogues of the rhizome of rhi- zophyllaceous ferns. Could we therefore divide a Pyrus japo- nica into branches and roots, we should have representatives of these divisions of ferns: the branches would be cormophylla- ceous, the roots rhizophyllaceous. Genera. Concerning genera, J am well aware that I shall be regarded as going too far; and therefore a few words of explanation seem desirable. In the first place, it must be remarked that the proposed division of annulate ferns into two primary groups, by a character not previously employed, and a division which literally halves such genera as Polypodium, Pteris, and many others, necessitates the provision of a new name for one or both of the halves thus dissevered. Were it found that some of the species of Campanula were exogenous and some endogenous in structure, some alteration must be made, either in the classes or the genus. From this cause, the genera Ctenopteris, Eupteris, Lophodium, Gymnocarpium, and Pseu- dathyrium are proposed : three other generic names are intro- duced, because the Linnean specific name had been improperly, as I believe, transferred to the genus; these are Hemestheum, Phyllitis and Notolepeum. Lastrea montana and Dryopteris Filix-mas are respectively the types of Bory’s genus Lastrea and Schott’s genus Dryopteris: Lophodium is, I believe, strictly synonymous with the Linnean species Polypodium cristatum ; the name is intended as a Greco-Latin version of the word INTRODUCTION. xili cristatum. The numerous species of Lophodium have hitherto formed part of what might be called the retenue of Polypodium, Polystichum, Aspidium, Nephrodium and Lastrea, but have never, as I believe, constituted a genus: it is surprising that the flat, notched involucre of this genus did not attract the attention of those botanists who have treated of that organ as being so important. The other genera are, I believe, generally received. Species. Without going back to Gerarde, Parkinson, and that ancient school of herbalists, it will be sufficient to begin a summary of the species of British ferns with Ray’s ‘Synopsis.’ In this admirable work, no less than forty-eight species are enu- merated. I omit twelve of them: — 1. Polypodium murale, which, as the editor distinctly explains, is only a variety of Polypodium vulgare, figured at p.41. 2. Polypodium Cam- brobritannicum, the well-known var, Cambricum of the same plant, figured at p.45. 8. Trichomanes foliis eleganter inci- sis, is the variety of Asplenium Trichomanes figured at p. 252. 4. Filix aculeata major, is one of the forms of Polystichum aculeatum, figured at p. 111. 5, Filix Lonchitidi affinis is re- presented at figure b on the same page. 6. Filix pumila saxa- tilis is the seedling plant of my Lastrea montana, p. 129. 7. Adiantum, an album tenuifolium, which Dillenius considered a variety of Ruta-muraria. 8. Adiantum majus Coriandri, &c., and 9. Adianto vero affinis, both of which are forms of Asple- nium marinum. 10. Filix lobata, which is a leaf of Anemone nemorosa. 11. Adiantum nigrum pinnulis Cicutarie, which I believe to be the divided and acute form of fragile, represented in the left-hand figure at p. 87. And 12. Filx pumila petrea, which I agree with the editor in supposing a young plant of X1V INTRODUCTION. Asplenium Adiantum-nigrum. The remaining thirty-six I retain, and have distinguished them by the letter R in the fol- lowing list. In the ‘English Flora,’ Sir J. E. Smith adds nine spe- cies: of these I omit four, — Aspidium spinulosum, Aspidium dumetorum, Aspidium irriguum, and Cystopteris dentata, — because they appear to me to have no claim whatever to be mentioned even as varieties; two, namely, Cystopteris regia and Asplenium fontanum, because they have only been found on garden-walls: and I retain three, — Polypodium calcareum, Aspidium cristatum, and Asplenium alternifolium, — under other names, and have distinguished them by the letter S in the following list. In the ‘ British Flora,’ Sir William Hooker makes two ad- ditions, — Aspidium rigidum and Hymenophyllum Wilsoni, — which, under other names, I retain, and distinguish by the letter H in the following list. In the various editions of this work I have added nine other species, and these are distinguished by the letter N. ALPHABETICAL List oF SPECIES. Aculeatum, R. + Collinum, N. + Glandulosum, N. + Acutum, R. Crispus, R. Ilvensis, R. Adiantum-nigrum, R. *Dickieana, N. Lanceolatum, R. Alpestre, N. Dryopteris, R. Leptophylla, N. * Alpina, R. Filix-mas, R. Lonchitis, R. + Angulare, R. Filix-femina, R. Lunaria, R. Aquilina, R. Flexile, N. *Lusitanicum, N. Callipteris, S. Feenisecii, R. Marinum, R. Capillus-Veneris, R. Fragile, R. Montana, R. Ceterach, R. + Germanicum, 8. Multiflorum, R. INTRODUCTION. XV Myrrhidifolium, R. Ruta-muraria, R. Tunbridgense, R Phegopteris, R. Scolopendrium, R. + Uliginosum, N. Radicans, R. Septentrionale, R. *Unilaterale, H. Regalis, R. Spicant, R. Viride, R. Rigidum, H. Spinosum, N. Vulgatum, R. Robertianum, S. Thelypteris, R. Vulgare, R. + Rutaceum, R. Trichomanes, R. There is scarcely anything so difficult to define as a species. We all agree that it has an existence in Nature, but we are at a loss for terms of definition, that shall be at once sufficiently restrictive and sufficiently comprehensive. And another diffi- culty exists against which it is next to impossible to contend, and that is, the different modes in which different minds view the same object. No plant ever displayed this difference more prominently than Foenisecii: some minds look on this as the most distinct of ferns; others, myself for instance, regard it as taking an ordinary station as a species, like lanceolatum, Trichomanes, viride or marinum; others, again, as the learned authors of the sixth edition of the ‘ British Flora,’ not only omit it from their list, but feel themselves called on to devote fifty-six lines of their smallest type to explanations, as though it must be argued away at any cost of space and trouble. I will not say that either of these is wrong; but I do say that such a discrepancy of opinion on what appears a very simple question, shows the simplicity is one of seeming only. Amongst the ferns I have described, there are certain inde- scribable grades of rank. Those which I regard of the highest rank, stand in the preceding list without any prefix. A grade lower than these, are others to which I prefix an asterisk : — Woodsia *alpina, Cystopteris *Dickieana, Ophioglossum *lusi- tanicum, and Hymenophyllum *unilaterale; but all these stand as established species in the text, without any mark of doubt: xvi INTRODUCTION. each commences on a right-hand page, and each has the Eng- lish name below the figure: the doubts respecting these four are expressed in the text. A grade lower still in the scale of im- portance are seven others, which are distinguished by a dagger : these are Asplenium tacutum, Polystichum tangulare, Lopho- dium tcollinum, Amesium tgermanicum, Lophodium tglandu- losum, Botrychium frutaceum, and Lophodium tuliginosum : these are distinguished in the text by a dagger prefixed to the English name, and by the English name always, and a portion of the text often, preceding the figure. The lowest grade bear- ing generic and specific names, comprises such forms as Dry- opteris affinis, Dryopteris Borreri, and Dryopteris abbreviata, all placed under D. Filix-mas; Athyrium molle, Athyrium convexum, and Athyrium incisum, all placed under A. Filix- femina. The names of species are intended to be in strict accordance with the law of priority. Alpina of Bolton is prior to hyper- borea of Liljeblad ; Ceterach of Linneus is prior to officinarum of Willdenow ; Feenisecii of Lowe is prior to recurvum of Bree; germanicum of Weiss is prior to alternifolium of Wul- fen; montana of Vogler is prior to Oreopteris of Ehrhart ; Myrrhidifolium of Villars is prior to montanum of Allioni ; Allioni, moreover, had no right to introduce a second Polypo- dium montanum : radicans of Swartz is prior to speciosum of Willdenow; Robertianum of Hoffmann is prior to calcareum of Smith ; Scolopendrium of Linneus is prior to vulgare of Symons, (alas, what a falling off was here!) ; Spicant of Lin- neus is prior to boreale of Swartz; and unilaterale of Will- denow is prior to Wilsoni of Hooker. Botanists will adopt these names or not, at their option: I endeavour to point out the right path, but have neither the power nor the inclination to compel others to take it. TRUE MAIDENBDAIR, (natural size). Characters. Genus.— Apiantum. Ultimate divisions of frond stipitate, leaf-like, without a midvein: veins variously branched, free at the extremity: involucre not apparent: clusters of capsules nearly circular, seated on the reflexed bleached margin of frond. Species.—Caritius-VeneRIs. Stipes black, about the same length as the frond: frond deltoid, lax, irregular : pinne alter- nate, stipitate, irregularly pinnate : pinnules stalked, leaf-like, generally subrhomboid. Syronpmes, Figures, te. Adiantum Capillus-Veneris, Zinn. Sp. Pl. 1559; Lightf. Fl. Scot. 679; Huds. Fl. Ang. 460; Bolt. Fil. Brit. 24, t. 29; With. Arr. 781; Sm. E. F. iv. 820, H. B. 1564; Mack. Fl. Hib. 344; Franc. 59, t. vi. £.8; Newm. N. A. 9, F838; Hook. and Arn. 576; Bab. 416; Moore, 196. Botanists are agreed on the name of this fern, and the figures are generally characteristic. B 2 TRUE MAIDENHAIR. Geographical Range. The geographical range of this species 1s very wide, extend- ing over the middle and south of Europe, the islands of the Mediterranean, the north of Africa, the Canary and Cape de Verd Islands; and forms so similar as scarcely to admit a doubt of their identity, occur in nearly every tropical or temperate country yet visited by botanists. Sir William Hooker, in his ‘Species Filicum’ (ii. 86), gives the following Asiatic, Oceanic, and American localities : — “ Throughout the East Indies, but chiefly in damp hilly districts, Malabar, Nepal, Kamaoun, &c. Assam, Khasya, Boutan, Scinde. Mauritius, Bourbon, Mada- gascar. China. South Africa, Algoa Bay, Uitenhage. Sandwich Islands. Throughout the temperate parts of North America, East and West side. Guatemala. Mexico. Trinidad. Do- minica. Jamaica.” In Britain, it is one of our most local and most beautiful ferns: it always occurs in moist caves, or in the fissures of rocks, near the sea-coast, preferring a per- pendicular surface, whence its delicate fronds grow in a nearly horizontal direction, inclining upwards at the extremity. It seems particularly to delight in localities where water trickles down the surface of the rock. CornwaLu. — I am indebted to Miss J. M. Fox for a living plant from Carclew, the seat of Sir C. Lemon, where it grows abundantly. Mr. Ralfs informs me he found it on cliffs within reach of the sea-spray, between St. Ives and Hayle; and Mr. H. C. Watson gives me St. Ives as a habitat, on the authority of the Rev. J. S. Tozer, and Carrick Gladden, a sea-cave in the same vicinity, on the authority of the Rev. Jas. Harris. I have many other authorities for each of these stations. Drvonsurne.—TI am indebted to Mr. Ward for specimens from the vicinity of Hfracombe: he found it growing luxuriantly on the face and in the vertical crevice of a rock in White Pebble Bay, in a dense mass, which commences at a height of about twenty-five feet, and descends to within about five feet of the level of the sea; he also observed it at Rillidge Point, and two other stations in the same neighbourhood. Myr. Edwin Lees has obligingly sent me specimens from the same localities: he found it in great abundance in September, 1848 : in every instance the fern was growing in gulleys of the cliff, where little vills of fresh water dribble down from above depositing a travertine sediment. Mr. J. Buckman, of Cheltenham, ies ADIANTUM CAPILLUS-VENERIS. 3 kindly transmitted Ilfracombe specimens. I have also to acknowledge my obligation to the Botanical Society of London, for specimens from IIfra- combe, collected by Dr. J. E. Gray, of the British Museum. Miss A: Griffiths informs me it has been found at Watermouth, also on the north coast; the Rev. W. 8. Hore adds that it has lately been discovered ncar Brixham, on the south coast of Devonshire, by Mr. Bartlett ; and Mr. T. B. Flower has recently sent me specimens, gathered by himself at Mud- stone or Mewstone Bay, near Berry Head, (see Phytol. iii. 51). GLAMORGANSHIRE. — Miss M. Waring informs me that she obtained specimens from rocks at Dunraven, in Glamorganshire; and Mr. Dillwyn observes that it is common on the cliffs of lias at the eastern end of the county, but that he has not seen it on mountain limestone, or nearer to Swansea than Dunraven, (Phytol. i. 188), I have seen specimens from Barry Island, off the same coast; and this, as well as Port Kerig, have been given in all our Floras as localities. The Dunraven station is thus de- scribed by my brother, Henry Newman, who paid it a visit in 1853 :— “ Let the botanist leave the South Wales rail at Bridgend station, and walk six miles to Southerndown, a cluster of houses, with an inn, on the side of the Bristol Channel. Arrived here, let him make for a sandy beach close to tho lodge-gate of the Dunraven estate, where it assumes the form of a little bay; following the bank or cliff to the left, and walling along its base, he will in a few minutes perceive the fern covering the face of the cliff where a rill comes trickling over its surface, and leaving a deposit of lime, in appearance and consistence much like cream-cheese: this is very soft on tho surface, but harder underneath: out of this queer substance grows the Maidenhair, very small in size, very abundant, entirely unprotected, and in constant motion as the sea-breezes sweep over it.” SomERSETSHIRE.—‘ Said to grow at the mouth of an old well at Cleve- don,” — Mr. L. H. Grindon, in Phytol. i. 964. “T found three plants of this fern growing in the air-shaft of a stone-quarry some thirty feet below ground, at Comb Down, near Bath,"—Mr. E. J. Lowe, in Phytol. iv. 1000. (SuRopsuire. — In the ‘ Phytologist’ (i. 579) appears the follewing announcement by Mr. Westcott : — ‘‘ About sixteen years ago I found Adiantum Capillus-Veneris on the Clee Hill, Titterstone. It was growing among the stones on the ascent to the group of rocks called the Giant's Chair. I plucked a piece of it as a specimen, and placed it in my book, leaving the root. This specimen I kept by me for some time, but at last it was lost, and of the loss I took no notice, not doubting that the next time T visited the spot I should again find the plant. However, I have hitherto been unsuccessful in my researches ; but it would be well if some one would diligently search for it, and perhaps it may again be discovered.”) Istz or May.—We find it mentioned in Lightfoot’s ‘ Flora Scotica ’ as a native of the Isle of Man; but this locality appears to have been little 4 TRUE MAIDENHAIR. regarded, indeed it had sunk into oblivion, when we were favoured by a corroborative statement of the fact by the Rev. F. F. Clark, (Phytol. i. 89). From this gentleman we learn that the locality was rediscovered by Dr. Wood, of Cork, in or about 1809, and by himself in 1835 and 1840. In the latter year he thought it nearly exterminated, but Mr. T. G. Rylands again observed the plant in Glen Meay, in 1841: he found young plants in tolerable abundance, mixed with more mature ones, although it required close examination to discover the roots when the fronds were gone; the finest root was high above a water-fall, and perfectly inaccessible, so that he considers its extermination highly improbable. I am indebted to Mr. Wilson for cultivated specimens, from a root brought by Mr. Rylands from this locality. (Scottanp.—In Lightfoot’s ‘Flora Scotica’ we find this record :—‘ Dr. Sibthorpe, the present most obliging Professor of Botany, at Oxford, fa- voured me with the sight of a large and perfect specimen of this fern, in the copious herbarium preserved at the Physic Garden in that University, to which specimen a label was annexed, with this inscription, ‘ From the isle of Arran, near Galloway, from Mr. Stonestreet.’ The specimen is to be found among the ferns. — Lib. 3, p. 3, f. 3.” — (Flor. Scot. ii. 679). This statement is now universally believed to be an error, and to refer to the isles of Arran near Galway, on the west coast of Ireland. The other Scotch station, ‘by the Carron, in Kincardineshire,” given in Hooker and Arnott’s ‘ British Flora’ (576), also appears to be erroneous.) IrELanp.—I am indebted to Mr. Mackay, of the College Botanic Gar- den, for a specimen from the south isles of Arran, where he found it in profusion, growing in small fissures of limestone rocks, but never rising above the fissures, therefore varying in length of frond in proportion to the depth of the fissure. Mr. W. Andrews found it sparingly on the Cahir Conree mountain, near Tralee; and the late Mr. J. M‘Alla, an industrious young botanist, who resided at Roundstone, in Connemara, found a few plants at the foot of a rock facing south-west, on the banks of Lough Bulard, near Urrisbeg. Very abundant and luxuriant on the coast of Clare, near Ballyvaughan : “about four or five miles from Ballyvaughan, the line of shore subsides into what in Yorkshire is called ‘limestone pavement,’ the chinks and chasms of this are in some places literally filled with Asple- nium marinum, and in others with Adiantum Capillus-Veneris, the fronds of the latter usually coming up to the surface-level, and micasuring cer- tainly 16 to 18 inches in length. The station extends westward from Bal- lyvaughan, round Black Head, to Cremlin Point.” — Mr. W. Bennett, in Phytol. iv, 1120. ADIANTUM CAPILLUS-VENERIS. o Description, The roots are wiry, black, and fibrous: the rhizoma, or under-ground stem, is black and scaly, and creeping, though very slowly: the young fronds make their appearance in May, are fully developed in July, and remain green till the winter: the future divisions of the frond are not apparent on its first expanding; three or five pinne only appear, and these, in a few days, become divided into pinnules. Although the form of the frond has been repeatedly described by botanists in precise terms, it must be considered irregular. The rachis, or principal stem, is throughout naked, shining, and nearly black; the branches, or pinne, are alternate, and on these are the pinnules, also alternate, and each on a distinct footstalk: botanists describe these pinnules as wedge-shaped, or fan-shaped, but they are far from uniform, and often vary greatly in the same frond. The fronds are generally fertile, the exterior margin of each pinnule being divided into a num- ber of lobes, and the terminal portion of these is bleached, scale-like, reflexed, and bears the capsules of seed in somewhat circular clusters on its internal surface: this reflexed margin, and also the situation of the veins, is shown in the detached pinnule (fig. b), to the left of the cut at page 1: the veins divide frequently, and without regularity, and run into the bleached reflexed portion of the lobe, ceasing before its extreme margin, and each bearing a cluster of capsules at its extremity; this will be seen on reference to the lower figure in the same cut (fig. c), which represents only one lobe or division of a pinnule : the reflexed portion, turned back, and showing the clusters of capsules, is unshaded. When barren, the margins, instead of being bleached and reflexed, are continued on Wty the same plane as the disk of the pinnule, are ao 4, sharply serrated (as represented in the annexed = 4 figure), and perfectly green to the extremity : = F with this exception, the fertile and barren fronds Lo, are similar. When the frond has passed ma- =~ Se turity, and approaches decay, the pinnules of this fern fall off like the leaves of phenogamous plants, the rachis remaining 6 TRUE MAIDENHAIR. bare and leafless, and assuming the appearance of a bunch of strong bristles. Mr. Ball, of Dublin, pointed out to me a property which this fern possesses, when cultivated on Mr. Ward’s plan of checking communication with the outer air by means of a glass cover :— the lobes of the pinnules be- come viviparous at the extremities, the seeds actually vegetating while still in sitw, and the young plants taking root, like parasites, in the substance of the old one. From a specimen in which this peculiarity was clearly exhibited, I sketched the annexed vignette. The figure (a) at page 1 represents a small frond from IIfra- combe, of the natural size: the pinnules are frequently as large as the figure to the left of the same cut. Varieties. There arc three forms of this fern, so different as to have taken the rank of species. The first of these is a stronger, more robust plant than the others, with a thicker stipes and larger pinnules, the stipes is also distinguished by a beautiful purple bloom: I have it in cultivation from Cornwall. It is the Adiantum Moritzianum of Klotzsch. The second appears to me the normal form, the true Adi- antum Capillus-Veneris of Linneus. Mr. Wilson, however, whose opinion is of the highest value, appears not to consider it the ordinary plant. He first invited attention to it in the ‘Phytologist’ for March, 1851, in the following terms : — “JT send full-grown fronds of an Adiantum from roots which have been in cultivation upwards of ten years, and which were gathered in the Isle of Man, by my friend Mr. T. G. Rylands. It differs very considerably in appearance from the ordinary form of A. Capillus-Veneris, and may perhaps be a different species. If compared with the figure in ‘ English Botany,’ it will be seen that the frond is narrow and oblong, by no means flabelliform, and the branches, instead of being set at an acute angle, are widely spreading. The pinnules do not taper gra- ADIANTUM CAPILLUS-VENERIS. 7 dually into the foot-stalk, and seem to be of quite a different shape from those of the Arran specimen. The characters pre- sented by the fronds sent, are constant in the plants under cul- tivation. J may here mention, that when I received the roots they were hastily planted in a common garden-pot, and were afterwards much neglected, until I thought they had quite perished for want of water. If they had not been more than usually tenacious of life such would have been their fate; but by careful nursing they were saved, and have ever since grown vigorously in a greenhouse, without artificial temperature dur- ing the winter. At the time when the roots were first gathered, the fronds were very small and imperfect.”—Phytol. iv. 71. I have represented the most characteristic of the fronds accompanying the foregoing communication at fig. d, page 8; it will at once be seen how closely it resembles fig. a at page 1. This form occurs almost invariably in the Isle of Man, on both sides of the Bristol Channel, and about the Land’s End. The third form, represented at fig. e, is more lax; the stalks of the pinnules are set on at an acute angle, and the pinnules themselves are more deeply divided. It is the Adiantum dis- sectum of some authors, and is treated as a variety of A. tenerum by Martens and Galeotti (Fil. Mex. 71), and as a variety of A. Capillus-Veneris by Sir W. J. Hooker, (Sp. Filicum, 11. 36, tab. lxxiv. B). It is certainly a less frequent plant in the British Islands than the preceding, occurring only on the Atlantic coast of Ireland, and on the southern coast of Devonshire; the spe- cimen figured having been obligingly sent me by Mr. Flower from Mewstone Bay. It must, however, be observed, that the British forms, so different in extremes, become nearly united by others of an intermediate character occasionally found in all the localities. Culture, The Maidenhair is a beautiful fern in cultivation. It grows freely in a greenhouse, without any artificial heat beyond that which the protection of the glass supplies: it should never be exposed to the rays of the sun. The soil should be a mixture of loam, leaf-mould, and silver sand, mixed with small pieces 8 TRUE MAIDENHAIR. of sand-stone or free-stone: it may be planted in a common flower-pot or a cocoa-nut husk: if ina flower-pot, the lower Word? d “ part of the pot should be filled with a mixture of broken pot and small lumps of charcoal, and should stand in a feeder well supplied with water; if in a cocoa-nut husk, it may either be suspended by a wire, or nailed against a wall. ADIANTUM CAPILLUS-VENERIS. 9 Economical elses. Sir J. KE. Smith has the following remark upon the uses of a species of Adiantum : — “ One species of this genus, A. peda- twm, is principally used in the south of France to make a syrup, which, being perfumed with orange-flowers, is called capillaire, and known by that name throughout Europe as a refreshing beverage when diluted with water.”—Eng. Flor. iv. 308. The species alluded to must be Capillus-Veneris, and not pedatum, the latter being exclusively North American. We are told by Bulliard, in his work on the medicinal plants of France (under tab. 247), that it is known in the shops by the name of “ Capil- laire de Montpellier,’ but no mention is made of its use as an ingredient of the syrup called capillaire, though the author adds that it is frequently used in medicine. However, the statement of Sir J. KE. Smith, to which I have alluded above, occurs in the ‘ Flore Frangaise’ (ii. 549), where it is said to be commonly known under the names of “capillaire, capillaire de Montpel- lier, cheveux de Venus;” and that with it the syrup of capil- laire is prepared. Dr. Ball, of Dublin, informs me that the in- habitants of Arran use a decoction of the leaves instead of tea. The medicinal properties of the true Maidenhair have been much extolled. Ray, in his ‘ History of Plants’ (i. 147), gives avery detailed account of its wonderful virtues, and gives it too with all the gravity of implicit faith. His catalogue of diseases curable by preparations of this fern, seems to include nearly all “the ills that flesh is heir to:” for his information on this head, our illustrious countryman acknowledges his obligations to one Dr. Peter Formius, a Frenchman, who really appears to have considered the plant a universal panacea. Still older writers also bear testimony to its powers; and Tragus, after enumerating sundry of its virtues, boasts of prudently omitting some of the uses to which it has been applied, as unworthy of Christian men: (Hieron, 533). It must, however, be borne in mind, that there is a great want of precision in the distinction of species in most of the earlier works, and that other species, more particularly Asplenium Trichomanes and A. Ruta-mura- via, were confounded with the present under the common name of Adiantum, or, in England, of Maidenhair ; neither should it C 10 TRUE MAIDENHAIR. be forgotten that the boasted virtues of herbs and simples have, for the most part, proved fictitious, and many of those, once most famous, have fallen into utter disuse. Dr. Lindsay states (Phytol. iv. 1064) that “it is slightly astringent, and was recom- mended in pulmonary complaints. Like most ferns, it contains tannic and gallic acids.” The anonymous author of the ‘ British Herbal,’ a rare work for the loan of which I am indebted to Mr. Pamplin, after reca- pitulating its ascribed properties, says, “It would be endless to enumerate all the virtues of this plant, of which whole trea- tises have been written: perhaps the reader may think those already mentioned more than fall to the share of any one vege- table: however, as it contains a very fine Nitrous Salt, of all others the most universally useful in Medicine, it may pro- bably be serviceable in most of the above-mentioned cases, without any great exaggeration of its virtues, and because the native salts of plants are best got out of them by boiling, the form of a decoction seems to be the most proper to take it in.” GYMNOGRAMMA LEPTOPHYLLA. ANNUAL MAIDENHAIR, (natural size). 11 12 ANNUAL MAIDENHAIR. Characters. Genus. — Gymvogramma. Ultimate divisions of frond con- tracted at the base but not stipitate, without a midvein: veins dichotomously branched, branches free at the extremity : invo- lucre not apparent: clusters of capsules linear, on both branches of the vein, and therefore forked, finally confluent, and occupy- ing almost the entire under surface. Species. — Lerropuytua. Stipes brown, about the same length as the frond: frond ovate-deltoid, pinnate: pinne sti- pitate, pinnate : pinnules stipitate, pinnate : lobes twice dicho- tomously divided. Spnonymes, Figures, &e. Polypodium leptophyllum, Linn. Sp. Pl. 1553; Swartz, in Schrad. Journ. ii. 27. Grammitis leptophylla, Swartz, Syn. Fil. 23 et 218; Woods, Tourist’s Flora, 424. Gymnogramma leptophylla, Desraux, Berl. Mag. v. 305 ; Newm. Phytol. iv. 914 ; Moore, 62. Acrostichum leptophyllum, Flor. Frang. u. 565. The figure of this fern in Schkuhr (t. 26) is admirable, and leaves nothing to be desired: that in Swartz (Syn. Fil. t. 1, fig. 6) is good, but represents a weak plant. With regard to the generic name, I adopt it to avoid confusion; but in doing so, must express my disapprobation of the association of such a heterogeneous group of species as Presl and other authors have placed under this genus. Neither do I see why the present species has been separated from Grammitis of Swartz, whose characters of the genus scarcely differ from those subsequently given by Desvaux for the genus Gymnogramma, as under: — “Capsule venis simplicibus furcatisve frondis insertee. Indn- sium nullum. Frondes pinnate, bipinnate decompositeque. Radices cespitose.’’—(Berl. Mag. v. 3014). The typical species, L. rufa, has little rclationship with that now under considera- tion, which stands the seventh in Desvaux’s list. The name, however, of Gymnogramma leptophylla, has become familiar to GYMNOGRAMMA LEPTOPHYLLA. 13 European botanists, and also to botanists in this country, since I introduced it into the ‘Phytologist:’ I should otherwise pro- pose to establish a new genus for this and some allied species, under the name of Dicranodium ; believing that the form now under consideration cannot be naturally associated with the species which Swartz and Desvaux have severally selected as the types of their genera. This species has no mention in the works of Withering, Smith, Sowerby, Francis, Hooker and Arnott or Babington. Geographical Aange. This fern occurs in various and distant but mostly maritime European localities. Sadler gives Germany, France, Italy and Spain, as its European countries; Link gives Naples, Sicily, and the Morea; Woods enumerates Brittany, Provence, and Italy; Schkuhr, Weber and Mohr, and Bory de St. Vincent give Switzerland. I am indebted to my late lamented friend, Col. Bory de St. Vincent, for the beautiful specimen figured in illus- tration of the species at page 11, (fig. a); it was collected by himself on the Alps: and my friend Mr. Alleard, or some of his travelling companions, met with it in several localities both on the Swiss and French Alps: nevertheless, Godet omits it from his ‘Flore du Jura.’ In Mr. Ward’s rich herbarium are exam- ples from Geusans, from Castel Gondolfo, Lake of Albano, from Virgil’s tomb, near the grotto of Posilippo, and from Naples, near the Hermitage, all collected by Mr. E. W. Cooke. I have seen many specimens from the Canaries and Azores. Bory de St. Vincent found it in Algeria; and Schimper distributed it with his Abyssinian plants, bearing this printed label : — “ Ad ripas elatas, locis humidis et umbrosis prope Adoam. d. 19 Sept. 1887.” In the New World, it is recorded by Kunze as having been found in Mexico. It has long been spoken of as a British fern, and its occur- rence in the British dominions is now established beyond a doubt: but its only ascertained locality is the Island of Jersey, and it is merely in compliance with the universal custom of English botanists, that I include the Channel Islands in a his- tory of British Ferns; for nothing can be more obvious than 14 ANNUAL MAIDENHAIR. that the connexion of the Channel Islands with Britain 1s political only, and that geographically and botanically they belong to France. (ScorLanp.—‘ When I was in Madeira, a lady of the name of Veitch, whom we knew there, showed me a small dried specimen of a fern which she had gathered in Scotland, I think in Aberdeenshire, and which was to all appearance precisely the same as the Gymnogramma leptophylla of Ma- deira.”—Mr. William Tanner, Phytol. February 1852, (wrapper). ‘“ Sceing in the February ‘ Phytologist’ the * supposed discovery of Gymnogramma leptophylla in Scotland,’ I wrote to the discoverer (Miss Veitch) in Madeira, to ascertain the exact locality of the plant in Aberdeenshire. That lady very kindly and promptly sent me the communication, of which the follow- ing is a copy:—‘I have much pleasure in informing you that the specimen of Gymnogramma leptophylla in my possession, I discovered in a stone dyke on the high road, on the right hand side, leading from Braemar (Aber- deenshire) to Ballater, nearly opposite Invercauld House, and, as far as I remember, where the Highlanders perform their annual feats at the gather- ing, vis., a rock called the Lion’s Face, at the foot of which, inclosing trees, is the above-named dyke.’”—Rev. W. W. Spicer, in Phytol. iv. 600. “T am not acquainted with Gymnogramma leptophylla; but if it resemble any of the forms of Polypodium alpestre, I should give the lady who thought she found the former at Braemar credit for having gathered it in the corrie of Loch-na-gar, or some such place, and confounded it with sraall Athyrium Filix-foemina, which grows in the place she has pointed out, along with Cys- topteris fragilis and a few other commoner ferns. Careful investigation of her locality for it did not, however, turn up a single specimen of Gymno- eramma.”’— Mr. Backhouse, in Phytol. iv 716. The specimen in question has been most obligingly placed in my hands, and is certainly the plant which I understand as Gymnogramma, leptophylla. Of the veracity of the finder no question can be raised ; but the accidental transposition of labels is so frequent, that the possibility of such an occurrence, and the absence of further evidence, must Le my excuse for inclosing the record in paren- theses). JersEy.—In the winter of 1852-3, I learned from my friend, Mr. Henry Hagen, that a lady had discovered Gymnogramma leptophylla in one of the Channel Islands; but knowing how numerous were the mistakes in nam- ing ferns, and believing that the specimens had not been examined by a practised botanist, I reserved the intclligence until my friend kindly procured me a specimen (fig. b), and finding there was no error in name, I announced the fact in the ‘ Phytologist ’ for March, 1853. (See Phytol. iv. 914). During May, 1853, I received a number of communications on this sub- ject, which were thus summed up in the ‘ Phytologist’: — “ Numerous GYMNOGRAMMA LEPTOPHYLLA. 15 communications from Jersey represent Gymnogramma leptophylla as widely distributed in that Island, growing on the banks of exposed lanes having a southern aspect, more especially in those localities in which the moistened soil induces the growth of Marchantia, in the company of which plant it appears particularly to flourish,; it also occurs, but not so frequently, grow- ing in moss. The principal localities are near St. Haule, near St. Aubin's, and in several places near St. Laurence. In one spot near the last-named place, it grows plentifully for a considerable distance along a hedge-bank, extending as far as the bank is exposed, but ceasing exactly where the lane is shaded by trees.”—Phytol. iv. 974. Mr. Ward writes :—‘‘T was kindly taken by M. Piquet, of St. Helier’s, to the great object of attraction, — Gymnogramma leptophylla. I saw it growing, as stated in the ‘ Phytologist,’ on a bank with a South-western aspect, not densely shaded by trees, as is the case in most of the Jersey lanes, but protected from the direct rays of the sun by the dwarf vegetation of the bank, which, from the constant oozing of a small stream, is suffi- ciently damp for the growth of Marchantia, with here and there a patch of Fissidens bryoides, I was shown two stations for this interesting plant by M. Piquet, and a third, about a mile from the former, by the Rev. W. Wait. It doubtless will be found in other localities, as the climate must nearly approach that of the South of France and of Italy, where the Gym- nogramma abounds.”—Mr. Ward, in Phytol. iv.1090. “ At St, Laurence and near St. Haule.”—M. Piquet, in Phytol. iv. 1094. Alescription. The radicles are brown, fibrous, and clothed with fibrille: the caudex is asmall, tufted corm, slightly hairy at the crown, never extending itself laterally or increasing by offsets ; it generally bears two, sometimes three, and rarely four, rigid, erect fronds, usually about three inches high: the stipes is somewhat shorter than the leafy portion of the frond, rather stout and glabrous, and of a pale brown colour: the outline of the frond is some- what ovate, but usually acutely pointed, pinnate: pinne alter- nate, distinctly stipitate, pinnate, their outline somewhat ovate : pinnules alternate, stipitate, pinnate : lobes again divided, and the ultimate divisions bifid or trifid, a free vein running into each: these veins are curved, and are generally capsuliferous from the fork to near their extremity, the capsules are thus ranged in series, which at first are manifestly linear, but subse- 16 ANNUAL MAIDENHAIR. quently become amorphous, the crowded capsules eventually covering all the back of the frond. It must also be obvious, that the capsules being crowded along the vein, even to its point of furcation, the mass itself becomes furcate. Fig. ¢ re- presents a portion of frond from which the capsules have been removed. Besides these fertile fronds, there are other shorter, more fragile, more membranous, and infinitely less divided fronds, with three or four large, flabellate pinne, which are either barren, or sparingly seeded. It is strictly an annual fern; and when the species is raised from seed, the plant appears to consist, for some weeks, of a single, undivided, flabellate frond. Culture, The soil used for this fern should be a light friable loam, mixed with abundance of fine clean sand: it requires almost constant moisture, and should be covered by a bell glass; the Marchantiz and mosses should be allowed to grow freely in its company. Some soil from its native locality in Jersey, kindly given me by Mr. Ward, has proved very productive; it appears to have been filled with the seeds. This fern has long been cultivated in our greenhouses, and when once established is difficult to eradicate. Having observed that this is strictly an annual fern, it is scarcely necessary to state that the usual care bestowed on the preservation and division of the corm will in all probability be unavailing. BLECHNUM SPICANT. 17 HARD FERN, (one-fifth the natural size). Characters, Genus.—BueEcunum. Midvein distinct, lateral veins anasto- mosing in a linear series on each side, parallel to the midvein, and emitting free branches to the margin: involucre linear, opening towards the midvein: capsules in a linear series on the inner side of each anastomosing vein. Species. — Sprcant. Fronds of two kinds: fertile fronds erect, linear, pinnate: pinne distant, reflexed, narrow, linear : the lower portion of the stipes naked: barren fronds prostrate, lanceolate, pinnatifid: pinne close, flat, broad, blunt. D 18 HARD FERN. Sononpmes, Figures, &e. \, Osmunda spicant, Linn. Sp. Pl. 1522; Lightf. ) Fl. Scot. 654; Huds. Fl, Ang. 450; Bolt. Sy Fil. Brit. 8, t. 6. , S72 Osmunda spicanthus, With. Arr. 768. Blechnum spicant, With. Arr. 765; Moore, SZ 185. . — FZ, Lomaria spicant(Desv.); Smith, Journ. Bot. iv. SA 166; Newm. N. A. 9, F. 89, Phyt. App. iv. Blechnum boreale (Swartz), Sm. H. F. iv. 316, E. B. 1159; Mack. Fl. Hib. 848; Frane. 47; Hook. and Arn. 575; Bab. 415. The figures of this species are generally cha- racteristic, but the nomenclature is very confused, both as regards genus and species. In the first place, the genus Osmunda, under which it was placed by Linneus, is now, by universal consent, confined to ferns of a very different group; and, in the second place, the specific name of spicant is not in accordance with the general usage of science, which requires such names to be Latin \ words, or words constructed in imitation of the ‘ Latin language. The latter question may be t Y \ Ml TRG \) summarily dismissed. If we once admit the «) principle of changing specific names, in accord- ance with our own views on the subject, 4# 4 we shall never have a settled nomencla- / ture; and, therefore, our adherence to the Linnean names of species cannot be too rigid. The name of the genus hel Pi es IZ x ACOA” ie i. Fertile frond. k,l. Barren fronds. m, Pinnule of barren frond, showing the venation. BLECHNUM SPICANT. 19 is a much more difficult matter to settle. I believe that Withering was the first author who ventured to transfer this species from the Linnean genus Osmunda to the Linnean genus Blechnum, an alteration made, according to its author, “in compliance with the opinion of Dr. Smith and Mr. Robson.” The name thus became Blechnum spicant; and, ten years sub- sequently, the change was adopted by Swartz (Syn. Fil. (1806), p. 115), as regards the genus, and the specific name altered from Spicant to boreale. Willdenow, in his ‘Species Plantarum,’ instituted the genus Lomaria, but retained the present species under the genus Blechnum; while Desvaux, Pres, Sadler, and other authors of good repute, referred to Willdenow’s new genus the species now under consideration, and restored the Linnean name to the species, calling the plant Lomaria spicant. Immediately after the publication of my first edition, the same name was published by Mr. J. Smith in the ‘Journal of Botany’ (iv. 166); and it was subsequently adopted (1841) by the com- pilers of the Edinburgh ‘ Catalogue of British Plants:’ but a careful examination of the characters of the two genera, as de- fined by their respective authors, induces me to conclude that: they are absolutely identical, and I therefore revert to the Linnean name, in accordance with the views of Withering, Roth (Fl. Germ. iii. 44), Koch (Syn. ed. 2. p. 984), Fries (Sum. Veg. Scand. p. 83), DeCandolle (Flore Fy. ii. 551), and Lede- bour (FI. Ross. p. 521). Geographical Range. The Hard Fern occurs in every European list, and has been found in Northern Africa: it has also been recorded as a native of North America, but I have met with no satisfactory evidence on this subject; and it is absent from collections which have been most obligingly sent me, from different localities, by Mr. Boott, Mr. Lea, and Mr. Oakes. It is almost universally dis- tributed throughout Great Britain, in woods, on commons, heaths, and all uncultivated ground: it is fond of moisture, and prefers clayey and gravelly soil: on chalk it is rarely met with. I do not recollect having seen a specimen from the chalk hills of Kent, Sussex, or Surrey. 20 HARD FERN. Mescription. The radicles of this fern are black, tough and wiry; the cau- dex is tufted and hairy. The young fronds make their appear- ance in May: they are of two kinds, fertile and barren; the fertile fronds arrive at perfection in September, shed their seed, and disappear before winter, but the barren fronds continue perfectly green and vigorous throughout the year. The fertile frond) represented of half the natural size in the figure at page 18) is erect, linear, simply pinnatifid, and pointed at the apex ; the lower half of the stem is dark purple, smooth, shining, and naked, but furnished on each side with some minute rudimen- tary pinne, scarcely observable without a close inspection, and having towards the base a few scattered, long, narrow, and pointed scales: the upper half of the stem has linear, narrow pinne, rounded at the apex, convolute at the sides, and densely and completely covered with geed on the inferior surface. I have to acknowledge the obligations I am under to Miss Beever, of Coniston, for fine Westmoreland specimens of this plant, sparingly fruited, and to Mr. Jenner, of Lewes, for simi- lar Sussex specimens. From these I have been able to learn more of the venation of this species than appeared possible from an examination of the usual densely fruited form. In these specimens the pinnules remain flat, as in the barren fronds, a circumstance which much facilitates the inquiry. The mid- vein of the pinna (4 a a, page 21) is somewhat sinuous, giving off oblique, alternate, lateral veins (b b b); these lateral veins are united to each other by what may be termed an irregular longitudinal vein (¢ ¢ ¢), running parallel with the midvein, and nearly equidistant between this and the margin of the pinna (d dd); the union of the lateral veins causes the formation of a series of what may be termed closed cells (e ee): on each side of the midvein, from the two longitudinal veins, arise other lateral and slightly capitate veins (fff), which proceed ob- liquely towards the margin and terminate just before reaching it; to the two longitudinal veins are attached the capsules, in a continuous series, on that side of each vein which faces the midvein ; the points of their attachment are indicated in the lower figure, throughout the course of the two longitudinal BLECHNUM SPICANT. 21 veins: the capsules are covered by a continuous, linear, white, membranous involucre, which opens towards the midvein; these involucres are represented in the upper figure by the white line (g g), and the series of capsules appearing beneath them, are represented by the black line (hk). The fronds from which the descriptions and drawings were made, are so different from the usual state of fertile fronds, that the characters are chiefly valuable as affording a key to the normal venation, which has hitherto almost eluded our inquiries: yet, furnished with this key, we find that the same structure obtains, in a minor degree, in all the fertile fronds. se ae) ~~ df 3 oe eb fa tb de F © Ke 2 BSF The barren fronds are much shorter than the fertile, gene- rally horizontal, strap-shaped, and pinnatifid, and have a short portion of the stipes, not more than a sixth, naked and slightly scaly. Paricties. This fern is very subject to those deviations from normal form which are so highly prized by many of our most experien- ced and most successful cultivators. Some of these deviations in Blechnum spicant consist in a bifid or trifid termination to the frond, others in the atrophied state of all the pinne, the stipes and rachis alone remaining; the former being fringed with amorphous fragments of the lost pinne. I have to 22 HARD FERN. acknowledge my obligation to Mr. Wollaston of Chiselhurst, Mr. Gray of Hammersmith, Dr. Allchin of Bayswater, and Mr. J. R. Kinahan of Dublin, for much valuable information on this subject. The last-named gentleman has very completely and ingeniously systematized these deviations, in a paper published in No. 147 of the ‘Phytologist, and intituled “On the Classi- fication and Nomenclature of Ferns,” (see Phytol. iv. 1033). The author of this paper proposes that in future “ all descrip- tions of forms of ferns be divided under the following four heads: —1. Form, or original type. 2. Subform, or forms aberrant from some geographical influence, such as climate, &e., and including what may be called doubtful species. 3. Subvarieties, or non-permanent monstrosities. 4. Varieties, or permanent monstrosities.” After maturely considering this system, which the author explains in extenso, I have concluded that the deviations in question do not imperatively demand a notice in a botanical work like the present. Crlture. The Hard Fern is well worth cultivating on rock-work ; its fertile fronds are delicate and beautiful during the summer and autumn, and its barren fronds bright glossy green and persist- ent throughout the winter. It likes a stiff clayey soil, and is almost the only species that succeeds in such a soil; in loam, or a mixture of loam and peat, it also succeeds well, but re- quires more constant watering. When potted, it should have abundance of air, not liking the confinement of a glass shade, neither does it fruit so freely when covered as when exposed. On rock-work it should be so planted as to face the North, as, in a state of nature, it shows a very decided preference for the North side of hills. EUPTERIS AQUILINA. 23 COMMON BRAKES, (one-tenth the natural size). Characters. Genus.—Evpreris. Midvein distinct, lateral veins anasto- mosing at the margin, forming a marginal vein: involucre attached to the inner side of the marginal vein, linear, its mar- gin split into capillary segments: capsules attached in a linear series to the marginal vein, exterior to the involucre: epider- mis prolonged, bleached, reflexed, split into capillary segments and covering the capsules in the manner of an involucre. Species. —Agurmina. Caudex a creeping rhizome: stipes long, erect: frond deltoid, very compound. Synowpmes, Fiquees, &. Pteris aquilina, Linn. Sp. Pl. 15383; Lightf. Fl. Scot. 657 ; Huds. Fl. Ang. 451; Bolt. Fil. Brit. 16, t.10; With. Arr. 765; Sm. HE. F. iv. 318, E. B. 1679; Mack. Fl. Hib. 348; 24 COMMON BRAKES. Franc. 55; Newm. N. A. 11, F.93; Hook. and Arn. 575; Bab, 415; Moore, 189. Allosorus aquilinus, Presl. Tent. 143. Eupteris aquilina, Newm. Phytol. ii. 278 ; Phytol. App. ii. It will be seen by the list of synonymes, that authors are generally agreed in giving to this common fern the name of Pteris aquilina; but neither its mode of growth, vernation, or fructification agree with those of the species which Linneus has placed as typical in his genus Pteris. Robert Brown was the first to perceive how essentially the fructification of the com- mon brakes differed from that of other ferns with which it was associated under the name of Pteris. Sir J. HE. Smith dwelt on this discrepancy, but appears not to have considered it generic ; and it seems to have escaped the notice of almost every other botanist. John Smith—a name I am ever ready to honour— gives the weight of his authority against separating aquilina from the genuine Pterides: he remarks, in the ‘Journal of Botany’ (vol. iv. p. 165), “‘ Some observers have stated that the sori of Pteris aquilina are furnished with a narrow indusium situated on the inner side of the receptacle, but from my own observation I cannot consider the slightly elevated fimbriate ridge which bounds the inner side of the sporangia as being analogous to an indusium.” In my attempt, therefore, to sepa- rate generically Pteris aquilina from the genuine Pterides, I fear I shall meet with slender encouragement. It should, how- ever, be observed, that the genus Pteris has long been disinte- grated: several marked forms having been separated under the names of Allosorus, Platyloma, Doryopteris, Litobrochia, and Cassebeera: while a group, more strikingly heterogeneous since the abstraction of these divisions, still retains the original appellation of Pteris. In accordance with established usage, the name of Pteris should remain with the first or typical spe- cies, and such others as may be supposed to possess the greatest number of distinctive characters in common with that typical species: while aquilina, the thirteenth on the Linnean list, and perhaps more decidedly remote than either of the others, seems to require anew name. I therefore propose calling it Eupteris aquilina, since, although it is not the Linnean type, it is essen- tially the Pteris of all botanists. EUPTERIS AQUILINA. 25 Presl, in his ‘T'entamen Pteridographie’ (p. 143), has revised and divided the genus Pteris, referring the present species to Bernhardi’s genus Allosorus: but in this genus he has included species which scarcely possess a character in common: and, moreover, the Allosori aquilini, to which division of the genus the brakes is referred, constitute the third and not the typical division of the genus, which properly includes the Allosorus crispus, a very distinct and different plant. It therefore ap- peared necessary to institute a new genus for the reception of the Allosori aquilini of Presl. The brakes is the “ Filix femina” of all the older authors, and the transfer of that trivial name to another species was made by Linneus, who gave the plant now under consideration its present appellation of aquilina. However unadvisable the change may have been at the time, it has been generally adopted by subsequent botanists. Figures invariably fail to give a correct idea of this fern, from the difficulty of reducing it to the requisite size. Geographical Range. The geographical range of this fern can scarcely be ascer- tained, until we are agreed upon the latitude to be allowed for variation in a species. Mr. Houlston, of Kew, one of our best pteridologists, associates under the name of aquilina cognate forms from all parts of the world. Every country of Europe furnishes the normal form, as Pteris aquilina; then we have three Russian species, P. nudicaulis, P. brevipes and P. taurica; Africa has its P, lanuginosa and P. capensis ; Nepaul its P. re- curvata; central India its P. latiuscula; Ceylon its P. lanugino- sa; New Zealand its P. esculenta; the Sandwich Islands P. decomposita; North America its P. caudata; South America P. arachnoidea; the West Indies a form allied to P. caudata; the Cape de Verde Islands, the Azores, the Canaries, and Madeira, different forms, all known by the name of P. aquilina. Although the whole of these may be referred, without doubt, to the genus Eupteris, I am not willing to unite them into one species, on account of the extreme discrepancy in the circum- scription, detail, and general appearance of the frond. E 26 COMMON BRAKES. This is the most abundant of our British ferns; there being scarcely a heath, common, wood, or forest, in any part of the United Kingdom, in which it does not make its appearance. Its presence in great abundance is said to indicate poverty in the soil; but from its luxuriance when growing in the vege- table mould of woods, and in highly manured gardens, I am inclined to suppose that its usual absence from rich cultivated land, is rather to be attributed to the effects of the plough and the hoe than to any quality of the soil. It is quickly eradicated by either of these instruments, and seems peculiarly susceptible of injury. It appears one of those truly wild plants which fly from man, and take refuge in wastes and wildernesses. In size it is extremely variable; being sometimes scarcely a foot in height, while at others it reaches an altitude of ten and even twelve feet. Although it occurs on every other description of soil, it avoids chalk, and scarcely a plant can be detected on the South Downs of Sussex. In dry gravel it is usually pre- sent, but of small size; while in thick shady woods, having a moist and rich soil, it attains an enormous size, and may often be seen climbing up, as it were, among the lower branches and underwood, resting its delicate pinnules on the little twigs, and hanging gracefully over them: under these circumstances it is a fern of exquisite beauty. Description. The radicles are brown, fibrous, and tomentose: the caudex is a nearly cylindrical, brown, velvety rhizome, about the size of a goose-quill; it is always subterranean, extending itself ra- pidly in a horizontal direction, it sometimes however descends deeply and almost perpendicularly, When the London and Croydon Railway was in progress, I found, in the New-Cross cutting, great abundance of these rhizomes in a decayed state, some of them extending to a perpendicular depth of fifteen feet. Whenever the fern has stood unmolested for a long series of years, the soil becomes filled with matted masses of these rhi- zomes, every portion of which sends up fronds in the spring, so that acres of land are sometimes covered with a growth of bracken, a circumstance which has induced Dr. J olnston, in his EUPTERIS AQUILINA. 27 very interesting ‘ Terra Lindisfarnensis,’ to describe this species as “ gregarious.” The young fronds make their appearance in May: they are extremely susceptible of cold, and it is by no means unusual to see the earlier fronds, before their expansion, entirely destroyed by the late frosts in spring: I have observed them cut down as late as the 20th of May. The fronds rise perpendicularly from the rhizome at une- qual intervals: until they nearly reach the surface of the ground the stipes only is discernable, the apex being rounded and dis- playing no trace whatever of a foliaceous portion, (fig. 1): a slight and scarcely perceptible indentation does, however, exist at the point a in that figure; and the slight projection above this, better shown at b, in the sectional view (fig. 2), contains the future foliaceous portion. Figures 8 and 5 represent the same frond in a state somewhat more advanced, and figs 4 and 6 are median longitudinal sectional views of the same. In all these it will be seen that the foliaceous part is bent forward on i 1 2 3 4 5 6 7 8 9 the stipes, forming therewith a kind of hook ; a structure strik- ingly different from that of Pteris tremula, represented at figs. 7, 8, 9, which, although generally held to be closely allied to aquilina, very clearly exhibits the usual circinate vernation. It may, however, be observed, that the extreme point of the bent rachis has a slight tendency to exhibit a curve, as shown in wo D COMMON BRAKES. fig. 6; and all the partial rachides are more or less circinate, as shown in the figure at page 23. There is something very anomalous in the rapid development of the foliaceous portion of the frond. Ata stage, as regards the stipes, when the circinate frond of Pteris tremula exhibits, if unrolled, all its pinne and pinnules, and even the incipient fructification, that of the present species is a mere indication, a slight inequality on the surface, and its component parts can- not be detected under a lens of high power; yet, in a few days, we find it has increased and unfolded with such marvellous rapidity, that in aquilina we have a frond surpassing in magni- tude that of nearly every other British fern. The form of the frond is nearly triangular, the base being somewhat, but not materially, the shortest of the three sides. The stipes is rather more than half the length of the frond ; it is green, and rather pilose: the pinne are pinnate; the pin- nules pinnatifid; the lobes are generally rounded and entire, but sometimes again divided: the first superior pmnule on each pinna is usually very small, and, as it were, rudimentary only. The fronds are almost invariably fertile, but all parts of the same frond are not equally so. In seedling plants, or those which occasionally grow in caves, fissures, or on stone walls, the fronds are smaller, tender, delicate and barren; the mar- gins of the lobes of the pinnules are then flattened, and broadly notched. Mr. Lees sent me an example of this form, gathered on a wall near Worcester Cathedral; Mr. Westcombe another, found on a wall in the centre of the city of Worcester: it occurs com- monly on the garden-walls at Deptford, and in one instance it has established itself on the brick wall of a house in that town. Mr. Woodward’s collection contains a fine example, gathered by Mr. Pamplin at East Grinstead; and Mr. Ewing has, for many years, observed a solitary plant growing on the wall of the bridge of the castle-moat, at Norwich, the fronds varying from three to nine inches in length. In these and other instances, too numerous to mention, the same characters are always preserved. The portion of the stipes below the ground is of a dark brown colour, velvety, and considerably stouter than the por- tion above ground ; and it closely resembles the rhizome in its EUPTERIS AQUILINA. 29 general appearance. When this incrassated portion of the sti- pes is cut through, either in a direct or oblique direction, the section bears a regular figure, as repre- sented in the annexed cut, the left-hand section being direct, the right-hand one : oblique. This figure is by many said to represent an oak tree, and is called King Charles in the oak; by others it is supposed to resemble a spread eagle, hence the specific name of “ aquilina” given by Linneus. From Mr. Francis’s ‘Analysis of Britsh Ferns’ (p. 55), we learn that this appearance “was a matter of notoriety at a very early period. Thus we find,” says that au- thor, ‘in a most rare little book, entitled ‘A Dyaloge or Com- munycation of two persons devysed or set forth, in the Latin Tonge, by the noble and famous clarke Desiderius Erasmus, intituled, The Pilgrimage of pure Devotion newly translatyd into Englyshe’ (no date, supposed to be 1551), is the following curious passage: — ‘Peraventure they ymagyne the symylytude of a tode to be there; evyn as we suppose when we cutte the fearne stalke there to be an egle.’” Dy. Johnston, in his ‘Terra Lindisfarnensis,’ says the mark is also compared to the “impression of the deil’s foot;” an impression, by the way, with which I am not so familiar as to be able to decide on the aptness of the comparison. The frond is killed by the first frosts of autumn, however slight they may be: it instantly turns to a deep brown colour, but remains perfectly undecayed, and frequently in an erect position, during the whole winter. When fertile, the lobes are incurved or con- volute at their edges, and their elasticity is so invincible, that it is very difficult to maintain the lobe in a flat position, adapted for an exa- mination of its fructification. The lateral veins, which are placed either opposite or alternately, are twice dichotomously divided before reach- ing the margin, where they are united together by means of a marginal vein. The accompa- nying diagram shows the formula of venation in a lobe which has been flattened for the pur- pose of exhibiting it more clearly. Attached to the marginal vein, a a, and extending throughout its length, 30 COMMON BRAKES. is a bleached semihyaline membrane, fringed with a series of jointed capillary segments. Beneath this membrane are the capsules, also attached to the marginal vein, and arranged along it in a continuous linear series, but more abundantly at its points of union with the transverse veins. Again, beneath this linear series of capsules, is a second bleached and fringed mem- brane, very similar to the first. It becomes an interesting ques- tion, whether both these membranes can be considered analo- gous to the usual involucre, or one of them only; and if one only, then which are we to select? Roth (Flor. Germ. iii. 42) does not appear to have observed the inferior membrane, but describes the superior one as an involucre. originating in an elongated epidermis. Sir J. E. Smith, although aware of this inner membrane, unhesitatingly speaks of the outer one as the “cover,” (Eng. Flor. iv. 804). Mr. Wilson, who has most obli- gingly favoured me with many valuable observations on this remarkable structure, seems to regard the inferior membrane as the involucre ; the occasional presence of the superior mem- brane in the total absence of capsules, proving, in his opinion, that it is not necessarily connected with fructification. Still, although I may state that I do not detect its presence in seed- ling or barren plants, and am therefore led in a measure to as- sociate its appearance at least with the power of producing fruit, yet I am quite inclined to consider it distinct from a true invo- lucre, and more analogous to the inflexed portion of the pinnule in Adiantum and Allosorus, which I have always regarded as perfectly distinct, although considered an involucre by Sir J. EK. Smith, and all our more eminent authorities ; and although there can be no question that its presence is connected with fructification, since, in both these genera, it is absent when the frond or pinnule is entirely barren: instances, however, occur in all the genera above cited, in which this inflexed or folded margin of the pinnule is totally unaccompanied by the pre- sence of capsules, as pointed out to me in Eupteris by Mr. W. Wilson. Mr. Jenner, who has most obligingly taken the great- est pains to assist me in the inquiry, as regards Eupteris, also appears to consider the exterior membrane as nothing more than a prolongation of the outer epidermis. The question, as regards the interior membrane, seems much more restricted. We are compelled to regard this as an involucre, from the EUPTERIS AQUILINA. 31 absolute absence of any other analogous part to which, with any show of plausibility, it can possibly be referred. JI have stated that the margins of each lobe are convolute, so that the marginal vein and its accompanying membranes, toge- ther with the series of intervening capsules, are bent over towards the midvein, presenting an appearance which I have attempted to represent in the accompanying figure of the under sur- face of the apex of alobe: b b is the mar- ginal vein in its natural position ; ¢ c, the inflexed or convolute portion of the leaf; d d the superior membrane partially co- vering the capsules, which are shown at ¢¢, projecting from beneath it; f is the midvein of the lobe. The inferior mem- brane, although very similar to the supe- rior, has some points of difference; each consists of a disk divided into cells, and a marginal fringe of jointed hairs or capillary segments, but the disk is somewhat differently marked. Mr. Jenner has ta- ken great pains to obtain a view of both the membranes at once, and has favoured me with the annexed sketch, the accuracy of which I have tested by examination. The marginal vein of the lobe is supposed to be presented to view edgeways at q, the capsules having been removed, in order to leave the view of the membranes unobstructed; h represents the superior, and 7 the inferior membrane. Varieties, Mr. Moore has most obligingly presented me with two speci- mens of this fern which he considers varieties, and to which he has assigned names and definitions, as under : — “a. vera; pinnules for the most part pinnatifid, or sinuate, the segments oblong obtuse. “8, integerrima ; pinnules almost all entire, one or two basal ones sometimes very slightly lobed.” 32 COMMON BRAKES. I have no fault to find with these definitions, but would ob- serve, that having commonly found both these, and a number of intermediate forms, on the same rhizome, I am not inclined to regard them as of sufficient importance to take rank as varieties : dissimilarity in the leaves of the same individual plant occur, not only in other ferns, but also in phenogamous plants ; they are particularly observable in the mulberry. Culture, Few gardeners could be induced to cultivate this fern, other- wise than in a fernery; and there it is extremely difficult to keep it within moderate limits. In a greenhouse it is more manageable, and, coming up abundantly in peat, and every de- scription of earth brought from commons, it has a remarkably elegant and pleasing appearance while still small: itis, how- ever, best to eradicate the rhizomes as soon as the fronds have assumed the tints of autumn. Economical Uses. In an economical point of view, this is the most valuable of our British ferns. ‘If cut while green,” says Lightfoot in his ‘Flora Scotica’ (Gi. 658), “and left to rot upon the ground, it is a good improver of the land: * * itis an excellent ma- nure for potatoes, and if buried beneath their roots, it never fails to produce a good crop: * * it makes a brisk fire for the purposes of brewing and baking. * * ‘In many of the western isles [of Scotland], the people gain a very considerable profit by the sale of the ashes to soap and glass makers.” Mr. Bladon, of Pont-y-Pool, in the ‘ Magazine of Natural History ’ (n. s. iv. 242), informs us that “in many of the open mountain- ous parts of Wales, where it grows abundantly, the brakes is cut down in the summer, and, after being well dried, is burned by the cottagers in large heaps, for the sake of the alkali con- tained in the ashes: when sufficiently burned, enough water is sprinkled on the ashes to make them adhere together, when they are rolled into round balls, about two inches or EUPTERIS AQUILINA. 33 two-and-a-half in diameter. These balls are thoroughly dried, and carried about the neighbourhood where they are made, for sale in the markets; and they are also frequently kept by shop- keepers, to supply their customers. The price of these balls varies, in different seasons, from 8d. to 8d. per dozen. They are very much prized, by some housewives, for their utility in the wash-house, in economizing the use of soap. When about to be used they are put into the fire, and when heated to a red heat, are taken out and thrown into a tub of water : the water, in the course of an hour or so, becomes a strong ley, and is then fit for use.” Mr. Hardy also says, that “in some parts of Berwickshire the ashes were once formed into a kind of pot- ash, and, with an admixture of tallow, into a home-made soap,” (see Terra Lindisf. p. 252). As a litter for horses, “fern” is in great request in many parts of Wales, Scotland, and Ireland. While wandering among the mountains of Wales, I have continually met with sleighs, drawn by a ragged pony, and laden with Pteris by an industrious Welshwoman: when thus collected, it is not only used for litter, but is also chopped up when dry, and mixed with straw or hay, and given in winter to the little horses and mules kept for working on the tram-roads. In Scotland, par- ticularly in the western Highlands, I often noticed it in use as a thatch for cottages ; and Lightfoot remarks,—‘ In Glen Elg, in Inverness-shire, and other places, we observed that the peo- ple thatched their houses with the stalks of this fern, and fas- tened them down with ropes made either of birch-bark or heath; sometimes they used the whole plant for the same purpose, but that does not make so durable a covering.” —F lor. Scot. ii. 659. It would appear that formerly it was in common use in Eng- land, for the same purpose; for by a statute for regulating the price of labour in England, dated 1349, being the 23rd of Ed- ward IIL. we find it enacted, that every tyler or coverer with straw or fern shall receive 8d. per day, and their servants or knaves 2d. per day, and their boys 13d. per day. Lightfoot goes on to say that swine are fond of the roots if boiled in their wash ; and Mr. Edwin Lees has recorded in the ‘Phytologist’ (263), that in the Forest of Dean he saw some girls carrying a quantity of recently cut Pteris aquilina or farn, which they retailed at 2d. per bushel. On inquiring the use FP 34 COMMON BRAKES. for which it was intended, he was informed that it was exten- sively employed in the forest for feeding pigs, which are very fond of it: for this purpose, however, it must be cut while the fronds are still uncurled, and must be boiled. The slushy or mucilaginous mass thus produced is consigned to the wash-tub or other receptacle, and in this state it will keep as pig-food for a considerable length of time. Mr. Lees was informed that it was found very serviceable, especially to cottagers, as coming in at an early period of the summer, when the produce of the garden is generally scanty. Mr. Lees suggests that it might not be an unpalateable accompaniment to a rasher of bacon ; but its use as an article of human sustenance is not quite so questionable as it would be if dependant on this ingenious speculation. We learn from Lightfoot, that it has not unfre- quently occurred that the poorer inhabitants of some parts of Normandy have been reduced to the miserable necessity of mixing the large and succulent rhizomes of this fern with their bread ; and in Siberia, and some other northern countries, the inhabitants brew them in their ale, using one-third of these rhizomes to two-thirds of malt. The ancients also are said to have used both the rhizomes and fronds of this fern in decoctions and diet-drinks, in chronic disorders of all kinds, arising from obstructions of the viscera and spleen. Some of the more modern writers have given it a high character for the same purposes, but it is now falling into disuse among medical practitioners: the country people, how- ever, in Haller’s time, still continued to employ it for its ancient uses, and gave it as a powder to destroy worms; they also regarded a bed of the green fronds as a sovereign cure for the rickets in children: probably these uses are still in vogue. Its astringency is so great, that it is used in many places abroad in dressing and preparing kid and chamois leather. In the ‘Phy- tologist’ (iv. 1065), Dr. Lindsay adds that the common brakes “is very astringent, containing a considerable amount of tannic and gallic acids; hence it has been greatly used as an anthel- mintic.” The rhizome, however, is said to be poisonous to cattle, and to produce the trembles in sheep; see Walker’s Mam. Scot. pp. 513 and 525. ALLOSORUS CRISPUS. 35 THE PARSLEY FERN, (half the natural size). ROCK BRAKES. Characters, Genus. — ALLosorus. Midvein distinct, lateral veins free: involucre not apparent: capsules in circular clusters near the extremity of the lateral veins, which are often divided: epidermis prolonged, bleached, reflexed, entire, and covering the capsules in the manner of an involucre. Species. — Crispus. Caudex prostrate: stipes as long as the frond: fronds of two kinds, both deltoid, and divided into numerous, leaf-like, stipitate divisions. Synonynes, Figures, &e. Osmunda ecrispa, Zinn. Sp. Pl. 1522; Lightf. Fl. Scot. 655 ; Huds, Fl. Ang. 450; Bolt. Fil. Brit. 10, t. 7. 36 PARSLEY FERN. Pteris crispa, (Linn. MSS.); With. Arr. 761; Sm. E. F iv. 319, BE. B. 1160. Cryptogramma crispa, Mack. Fl. Hib. 313; Frane.57; Hook. and Arn. 575. Allosorus crispus, (Bern.) ; Newm. N. A. 13, F. 103; Bab. 408; Moore, 58. This species appears to have perplexed botanists greatly as to the genus in which it ought to be placed. Linneus made it an Osmunda; but ina MS. note to his private copy of the ‘Species Plantarum,’ he transfers it to Pteris. By a reference to the preceding list of synonymes, it will be seen that our British authors, Lightfoot, Hudson, and Bolton, adopt his first view, Withering and Smith his second. The figures of this very pretty little fern are generally cha- racteristic: those in Bolton’s ‘ Filices’ (tab. 7), the ‘ Flora Danica’ (tab. 496), and ‘ English Botany ’ (tab. 1160), are very praiseworthy. Our old friend, Gerarde the herbalist, seems to have omitted it altogether, nor can I find it in Parkinson ; but the ‘British Herbal,’ to which I have already alluded, describes and figures the species very tolerably. Roth makes this fern an Onoclea, associating it with O. Stru- thiopteris, the Struthiopteris germanica of later writers; his description of the fructification is admirably clear and correct, in this respect differing from that of all his predecessors. By three eminent botanists it has been made the type of a new genus, namely, by Bernhardi, under the name of Allosorus; by Desvaux, under the name Phorobolus; and by Robert Brown, under the name Cryptogramma. Of these three names, Allo- sorus has been adopted on the ground of priority, by Sprengel, George Don (in Loudon’s ‘ Hortus Britannicus’), Sadler, Presl, the compilers of the ‘ Edinburgh Catalogue,’ and Babington ; and Cryptogramma by Hooker and Mackay. Geographical Range. As far as our very imperfect knowledge of fern-geography extends, the parsley fern is confined exclusively to Europe. It is recorded in one or other of the continental Floras as a native of Norway, Lapland, Sweden, Denmark, Germany, France, ALLOSORUS CRISPUS. 37 Spain, Switzerland, Italy, and Hungary: although it grows abundantly on the Swiss and French Alps, as well as on their immense shoulders which stretch down into Piedmont, it is, like Gymnogramma leptophylla, omitted from Godet’s ‘ Flore du Jura.’ I have seen no corresponding form from the conti- nent of America, nor have I any evidence of its existence in Asia, the plant located in Siberia under this name by Kaulfuss, having been subsequently referred to another species, the Allo- sorus foveolatus of Ruprecht, (Beitr. z. Pflanzeck. d. Russ. iii. 46). The Russian habitat at the head of the Gulf of Bothnia, I have omitted as Russian, and inserted as Lapp, adopting the geographical rather than the political position of the station : the species is nevertheless likely to occur in Russia proper, al- though unrecorded by the accurate and pains-taking Ledebour, except as Lapp. In Britain it is a local rather than a rare fern. In ScornanpD it is scattered over most of the counties in spots; more fre- quently ornamenting stone walls at a moderate elevation, than growing on the exposed summits of the hills: the Scotch localities are far too nume- rous to particularize. Descending into Enewanp, we find it recorded by Dr. Johnston as a na- tive of Berwickshire, and by Mr. Winch as growing abundantly on some of the mountains of Northumberland. In Cumberland it is an abundant fern: Mr. Watson, the Rev. G. Pinder, the late Mr. 8. Gibson, and many other botanists, have obligingly sent me many Cumberland stations, among which I may mention in particular the neighbourhood of Keswick and Der- wentwater, Scawfell Pikes, Helvellyn, Skiddaw, Martindale, Ennerdale, and Borrowdale. In Durham, Teesdale is recorded on the authority of Mr. Babington ; and rocks at Cocken and walls near Cronkley Fell in the ‘ Botanist’s Guide.’ In Westmoreland, Miss Beever finds it plentifully near Ambleside, and, with her accustomed liberality, has sent me a series of beautiful specimens: the Rev. Mr. Pinder also finds it on the schistose or slate rocks in the same vicinity; Mr. Hindson finds it at Casterton and Old Hutton ; Mr. Coventry at Morland. From Yorkshire I have received a great number of specimens through the kindness of my friends: the chief stations are Fountain’s Fell; Haworth, near Halifax ; Wensley Dale; Cronkley Scar; a number of stations in. Teesdale ; many spots on Ingleborough ; Penhill, and about the neighbourhood of Settle. In Lan- cashire it is very abundant. Mr. Simpson informs me that on the Moors near Lancaster it grows at a very slight elevation above the sea-level ; Mr. W. Wilson found it in the same neighbourhood, on the road to the 38 PARSLEY FERN. Asylum ; the Rev. Mr. Pinder and Miss Beever upon the Old Man Moun- tain; the late Mr. 8. Gibson and Mr. Gutch have collected it at Cliviger, near Todmorden, and at Thevely, near Burnley; Mr. Sidebotham and Dr. Wood at Fo-edge, near Bury. In the English counties southward of Lan- cashire and Yorkshire it is a fern of excessive rarity. We find it recorded for Cheshire, in the ‘ Botanist’s Guide,’ as occurring on the top of Tag's Ness, a hill near Macclesfield. The same authority gives Chinley Hills, near Chapel-le-Frith, in Derbyshire. In Shropshire, following the steps of Messrs. Cameron, Westcott, Westcombe, Burlingham, and Southall, I found it during the past summer on the Titterstone Clee Hill, where it occurs sparingly in four widely separated stations, amongst the masses of basalt that characterize that remarkable district. In Worcestershire, Mr. Lees records that he found it very sparingly on the Herefordshire Beacon, one of the beautiful range known as the Malvern Hills: it grows only in one spot, and there were but very few plants, one of which he most kindly gave me. In Somersetshire, Mr. Nathaniel Ward found a few plants about a mile from Simmon’s Bath, growing on a stone wall at Challicombe, in company with Polystichum alpinum. The probability of this pretty little fern maintaining a standing in these outlying stations is, I fear, very small ; I believe it is already lost in Derbyshire and Worcestershire. In Wats the parsley fern occurs sparingly in the Snowdon district, also in a few other parts of Caernarvonshire, and in Denbighshire, Montgomery and Merioneth : in the last-named county, I found it on stone walls near Dolgelly, and on the ascent as well as summit of Cader Idris. In South Wales it is comparatively rare; but I am indebted to Mr. Edward Young for a specimen gathered in Glamorganshire. In Irezanp, the range of the parsley fern is still more restricted than either in England or Wales. Mr. Mackay speaks of it as abundant on the Moume Mountains, in the county Down, but this appears a mistake ; it has occurred there, but, so far as I can ascertain, very rarely. The late Mr. Thompson, of Belfast, whose recent loss as a most zealous naturalist Treland has so much reason to lament, when in company with Mr. Tem- pleton (another Irish botanist, now, alas! lost to science), Mr. Mackay and Dr. Stokes, found it sparingly in the crevices of rocks about the summit of Slieve Bignian, in the same county ; but they spent ten hours in an un- successful attempt to rediscover it on the Mourne range. Mr. Moore, of Glasnevin, found a very few plants within the liberties of Carrickfergus, in the county Antrim; and Mr. Thompson found one specimen on Carling- ford Mountain, in the county Louth. ALLOSORUS CRISPUS. 39 Description, The principal characters by which to distinguish this plant from other British Polypodies, are, that its fronds are both barren and fertile, and that the margins of the pinnules in the fertile frond are inflexed or con- volute, covering the clusters of cap-, sules. I have to acknowledge my obligation to the late Mr. Samuel Gibson, as well as to Miss Beever and Mr. Cruickshank, for fronds par- tially fruited and partially barren. The radicles are fibrous, numer- ous, tough, and adhere tenaciously to | the earth or stones: the caudex is procumbent, extending itself hori- zontally, and producing a constant succession of fronds from its crown : this procumbent or horizontal posi- /” tion appears to me rather the result of age, or want of power to maintain an erect position, than of a tendency , to a creeping habit. The fronds rise in May and June, and disappear at the commencement of winter: as before stated, they are of two kinds, fertile and barren, both being nearly triangular in form, and, like the frond of Adiantum Capillus-Veneris, they are composed of numerous, leaf-like, ultimate divisions: the pinnse, pin- nules, and ultimate divisions, are arranged alternately: the stipes is slender, smooth, pale green, and is generally much longer than the efrond, which is of a bright and de- licate green colour. The ultimate 40 PARSLEY FERN. divisions of the fertile fronds are of a somewhat oval form, and stand on distinct petioles, as shown at figure a, (page 39); their margins are inflexed or convolute, attenuated and bleached; figure b is a magnified representation of one of these little leaves, with its margins rolled over as in a state of nature. The midvein is flexuous, and bears eight or ten lateral veins, placed alternately ; these are divided shortly after leaving the midyein, and each branch bears a nearly circular cluster of cap- sules at or very near its extremity, which does not quite reach the margin. The ultimate divisions are frequently auricled near the footstalk on one side only; this is shown in figures e¢, d, and e: ¢ represents the margins as flattened, and the clus- ters of capsules consequently uncovered; at d the margin is flattened on one side only; at e both margins are shown as flattened, the capsules removed, and only the points of their attachments indicated, together with the veins on which they are placed. The character of the barren frond is very various : its appearance is generally crowded and crisped, like the leaves of parsley, but its ultimate divisions are much the same with those of the fertile frond. Three forms of the barren frond are represented at f, g, and h; all these are of common occurrence: in f, the ultimate divisions are formed like little oak leaves ; the venation of one of these magnified is shown at figure i: g represents a frond in which the ultimate divisions are nearly linear: h is a form of less common occurrence, yet rarely absent where the plant is growing in considerable quantities. Carlture, There can scarcely be a more ornamental or more hardy fern than this when cultivated on rock-work : its beautifully green colour forms a most cheerful and pleasing contrast to the dark masses of basaltic or granitic rock amongst which it is placed by Nature, and should be placed by man. The soil in which it succeeds best is the peaty bog-earth known so well by nur- sery-men as the proper soil for Rhododendrons, Kalmias, and heaths: it should be sparingly supplied, and whether the fern be cultivated in pots or in the open ground, a large proportion of small pieces of stone should always be used. CTENOPTERIS VULGARIS. 4] COMMON POLYPODY, (one-fourth the natural size). Characters, Genus. — CrenorTertis. Midvein distinct: lateral veins of the pinne or pinnules branched, free, swollen or capitate at their extremities ; the anterior branch simple, generally termi- nating midway between the midvein and the margin, bearing a cluster of capsules at its extremity; the posterior branch is twice or thrice dichotomously divided, the capitate extremities usually forming a line parallel to the margin: involucre none: caudex a stout succulent rhizome, usually attached by means of its radicles to the surface of a rock, the bark of a tree, &c., thus always having a pseudo-parasitic or climbing appearance, cylindrical, branched, extending itself at the extremities, at first densely clothed with scales, but as these fall off becoming smooth and naked; of slow growth, tough and very enduring, here and there marked with nearly circular scars, the site of fallen fronds, which, though persistent through the winter, are G 42 COMMON POLYPODY. deciduous in early summer, falling off at a basal articulation.— See Phytol. 1. 274, Species.—Vutearis. Frond strap-shaped, simply pinnatifid, stipitate: stipes articulated at the base. Synonyms, Figuees, &e. Polypodium vulgare, Linn. Sp. Pl. 1544; Lightf. Fl. Scot. 667; Huds. Fl. Ang. 455; With. Arr. 773; Sm. E. F. iv. 280, H. B.1149; Mack. Fl. Hib. 887; Franc. 21; Newm. N.A.18, F.111; Hook. and Arn. 566; Bab. 408; Moore, 43. Polipodium vulgare, Bolt. Fil. Brit. 32, t. 18. Polypodium Ctenopteris vulgare, Presl. Tent. Pterid. 179. Ctenopteris vulgaris, Newm. Phytol. ii. 274, App. xxix. This genus is indicated by Presl, under the name of Polypo- dium Ctenopteris vulgare ; and he has arranged under the sec- tion Ctenopteris fifty-three species, which agree in the following character : — “ Sori aut omnes aut saltem superiores in apice globuloso vene venuleve.” And although the assemblage, at first sight, certainly appears heterogeneous, yet the character, if constant, and combined with the still more important one derived from the rhizome, is not to be rejected, however much the group of included species may require revision. J am not aware that the species, in its normal form, has ever had a second name. All the figures of this fern are good, and some of them beau- tifully characteristic : none however surpass in fidelity those by Gerarde of the usual form; (see Gerarde Em. p. 1182, both figures). It is very marked in character, and therefore easy to represent. Geogtaphicnl Lange. The common polypody is perhaps the most universally dis- tributed of all ferns: it grows in every province of Europe and Asia between the German and North Pacific Oceans; it occurs in many parts of Africa, and throughout the continent of North America. CTENOPTERIS VULGARIS. 43 In Great Bri- tain, it is one of our most familiar and most abun- dant ferns. Just as the common brakes seems to shun man and Nt K AARNE , to seek the forests and the wilds A ss and heaths, where his imple- ments of husbandry offer it no disturbance; so does the poly- pody appear to affect the companionship of man, to shun the waste, and to claim the shelter of the hedge-row: it forsakes the common, and establishes itself on the church tower or the church-yard wall: it especially delights in the stone roofs of our cottages: it leaves the forest tree to rejoice in its vigour, but surrounds with a verdant crown the pollard willows that fringe the margins of our mill-streams or overshadow our horse- ponds. It is emphatically a parasite, a parasite moreover on the weak ; and when it occasionally makes its appearance far away from man and the works of man’s hands, it is sure to be found clinging to some giant of the forest that is hastening to ruin. Such an one it will often crown with joyous green, — invest with «A gilded halo hovering round decay.” 44 COMMON POLYPODY. Description. The radicles are brown, and thickly clothed with fibrille : the caudex is a rhizome, about the size of a goose-quill, and entirely covered with a dense, brown, pilose cuticle, which dries up and peels off after one year’s growth, leaving the rhizome smooth; it is decidedly creeping, making annual advances of considerable extent. The young fronds are thrown out in May and June, and never issue from the growing point of the rhi- zome, a character which will hereafter occupy the attention of all pteridologists: they arrive at maturity early in September, and retain their full vigour until the fronds of the succeeding year make their appearance. The young fronds are generally erect at first, but droop by degrees, and are always pendent when mature. The stipes is green, and nearly equal in length to the frond: the frond is strap-shaped, pinnatifid, and acute at the apex, (fig a, page 41): the pinne are nearly linear, and rounded at the apex; their margins are more or less serrated : the usual size is shown in the detached pinnee, represented by figures b and ¢, (page 41). The fronds are fertile only, and the clusters of capsules are generally confined to the upper part of each: when without fruit, the imperfection arises from uncon- genial situation, and the plant is not to be considered in a per- fectly natural and healthy state. The situation of the veins is shown in the detached pinna, (fig. 6): the lateral veins are al- ternate, and each is divided into four branches, three of which extend nearly to the margin, and are incrassated at their termi- nation; the fourth is directed forwards, and its termination, which is nearly equidistant from the midvein and the margin, bears a circular cluster of capsules, which is entirely without an involucre. A single lateral vein, its four branches, the at- tachment of the capsules, and the extent of the circular cluster, indicated by a dotted line, are shown at fig. d. (page 41). Varieties, In form of frond the common polypody is tolerably uniform ; it is, however, subject to a few variations, some of which are CTENOPTERIS VULGARIS. 45 remarkable. The detached pinna bearing the clusters of cap- sules (fig. c), shows a strongly serrated variety; and the entire frond (fig. e) has the termination of the pinne bifid. Another variety, which is perfectly barren, is so strongly serrated, that 46 COMMON POLYPODY. Linneus considered it a distinct species, and described it under the name of Polypodium Cambricum: the identical frond so named and described by the great naturalist, is now in the pos- session of the Linnean Society of London. Figure f, on the preceding page, is a careful representation of this frond. I have never been successful in my search for this form of the common polypody in Wales, but have seen in many botanic gardens fine Irish specimens, and am indebted to Mr. Moore, of the Dublin Glasnevin Garden, for a root found in the county Wicklow many years since: it is still in full vigour, and its remarkable character is perfectly unchanged by cultivation. The late Mr. Thompson, of Belfast, informed me that a similar plant was found by the late Mr. Templeton, in a glen at Red Hall, near Carrickfergus, county Antrim. Figure g represents a still more remarkable variety, found by Mr. Mackay, in the Dargle, in the county Wicklow ; the frond represented was sent by Mr. Mackay to the late Sir J. E. Smith, and is also in the possession of the Linnean Society: it differs from the preced- ing variety in being fertile. In Ireland this species is much more subject to vary than in England. I have gathered a num- ber of fronds in various parts of the county Kerry, which bear some slight resemblance to Mr. Mackay’s beautiful plant. I must not, however, omit to record my thanks to Mr. George Smith, of Monkston Hill, near Dublin, for magnificent examples of this variety; to Dr. Greville, for a gigantic English speci- men gathered at Sidmouth; to Mr. Jenner, for another gathered in Kent; and to Mr. W. Southall, jun., for others, deeply ser- rated, gathered in a lane at Moseley, near Birmingham. Caulture, This fern is one which thoroughly repays the trouble of cul- tivation. Some care is required in removing it from its native habitats : it frequently occurs with its rhizomes so closely in- terlaced with the roots, branches, or bark of the decaying tree on which it is growing, that a saw or chopper is required for its removal. In a greenhouse, it is a remarkably striking and beautiful object when suspended in a basket, which should CTENOPTERIS VULGARIS. 47 always be of wood, and made very open. The basket and sus- pending wire being prepared, the rhizomes should be arranged therein in such a manner that the fronds may pass through the holes in the bottom, and that the growing points of the rhizomes may also have an opportunity of doingso. The rhizomes should then be covered with a thin layer of Sphagnum, a moss always to be found in boggy places, and which never becomes mouldy: next cover the Sphagnum with a mixture of well-decayed leaf- mould and silver sand; then arrange a second layer of Sphag- num, and then a second layer of rhizomes, on which carefully fasten wooden cross bars, and the basket will be complete. Immerse the whole in soft water, until it is thoroughly satu- rated, and then suspend it in its final destination. This should be done in April, before any young fronds have appeared: in June and July young fronds will emerge through all the aper- tures in the basket, and will arrange themselves gracefully around it: last year’s fronds, which, up to this period, are un- sightly, will now fall off. The basket should hang in a free cir- culation of air; all glass covering, more than that afforded by a greenhouse with open doors and windows, is to be avoided : exclude violent draughts of wind, such as are likely to break the fronds, but admit plenty of fresh air. The polypody may also be cultivated in pots, recollecting to introduce abundance of decaying wood and leaf-mould. Out of doors this fern does well, if removed in a compact mass from a wall or roof to a slab of stone in the rockery; or, better still, if you can obtain leave, in early spring, to saw off the head of some pollard willow, and transfer the mass unin- jured to your garden. Economical Wses. The medicinal properties of the common polypody were once highly extolled, but the plant is now fast falling into disrepute amongst medical men. A mucilaginous decoction of its fronds was formerly very commonly administered to children as a cure for worms, colds, and the hooping-cough ; and I have seen el- derly women collecting it in Herefordshire, as a specific against the latter disease. It is gathered in October and November, 48 COMMON POLYPODY. when full of seed, the barren fronds being rejected ; it is hung up in the cottages to dry, and when required for use, is slowly boiled with coarse raw sugar. It is called by these gatherers, “golden locks,” and “ golden maiden-hair.” The virtues formerly attributed to this plant were very nu- merous. Dioscorides says it is of service applied to luxations or limbs out of joint, and to chaps between the fingers; and that it has the power to purge and draw forth choler and phlegm. Actuarius asserts that it purges melancholy, as we learn from Gerarde; but he adds that Joannes Monardus thinks its powers of purging very small, a view of the case which our great herbalist informs us “is confirmed by Experience the mistris of things.” Pliny recommends it for chaps on the toes; and farther informs us that the root dried and powdered, and snuffed up the nose, will consume a polypus. It is, doubtless, the ‘ Rheum-purging Polypody” of our own Shakspere. The dried and powdered rhizome was formerly applied “ externally as an absorbent, and for covering pills,” as we are informed by Dr. Lindsay ; (Phytol. iv. 1065). GYMNOCARPIUM PHEGOPTERIS. 49 THE BEECH FERN, (natural size). Charucters, Genus.—GymnocarPium. Ultimate divisions of the frond with a series of free parallel veins running from the midvein to the margin, and each of these bearing a circular mass of cap- sules before its extremity; when mature, these clusters are circular, and, in the typical species, have no trace of an invo- lucre. The caudex is a black, slender, stolon-like rhizome, which extends rapidly beneath the surface of the ground, the fronds rising from its extremity. Obs.—It should here be observed that Roth, one of the most pains- taking and observant of botanists, asserts that he found an involucre in Phegopteris and Dryopteris. I have no reason to doubt this as- sertion, but have not confirmed it by my own observation. An in- volucre is frequently present in montana, and is such as is described by Roth as characteristic of Phegopteris. Species. — Purecopreris. Rhizome creeping: stipes long: frond ovate-deltoid, pinnate, drooping : first pair of pinne ses- sile, distinct, turned back; the rest confluent, being united at H 50 BEECH FERN. the base, pointing forwards; all pinnatifid: colour dull green : stipes concolorous, slightly scaly. Sononymes, Figuees, &e. Polypodium Phegopteris, Linn. Sp. Pl. 1550; Lightf. FT. Scot. 669; Huds. Fl. Ang. 456; With. Arr. 775; Sm. E. F. iv. 282, EH. B. 2224; Mack. Fl. Hib. 337; France. 23 ; Newm. F. 115; Hook. and Arn. 566; Moore, 47. Polipodium Phegopteris, Bolt. Fil. Brit, 36, t. 20. Aspidium Thelypteris, Sm. E. B. 1018. Lastrea Phegopteris, Bory, Dict. Class. d’ Hist. Nat. ix. 252 ; Newm. N. A. 17, F. 18. Polypodium ? Phegopteris, Bab. 408. Gymnocarpium Phegopteris, Newm. Phyt.iv. 871, App. xxii. Polystichum Phegopteris, Roth. Fl. Germ. i. 72. The ferns for which I propose the generic name of Gymno- carpium, form a small, but, as it appears to me, a very natural group. Most of our authors, modern as well as ancient, include them, together with the last-described species, Ctenopteris vul- garis, and also Pseudathyrium alpestre hereafter to be noticed, in the genus Polypodium. My late friend, Colonel Bory de St. Vincent, when he established the genus Lastrea in 1824, men- tioned only two European species, Oreopteris and Thelypteris, as referrible thereto; but two years subsequently, namely, in 1826, he added three others,—Phegopteris, Dryopteris and Ro- bertianum: and every botanist will admit that there is great similarity in structure amongst all the five species, and that they associate very naturally : nevertheless, I think it better to separate the species into two groups, until there is a greater fixity in the characters and limits of the genera of ferns. The specific name of Phegopteris is of universal acceptation, although both this, and the English name of “ beech fern,” a literal translation, seem very inappropriate, as was observed by the late Sir J. E. Smith; and I feel at a loss to discover the reason for either having been employed. Both of them convey an obviously incorrect impression, as neither the characters nor localities of the fern have any connexion with the beech tree. GYMNOCARPIUM PHEGOPTERIS. 51 The figures of the beech fern are not, generally speaking, satisfactory, inasmuch as they fail to give the very marked character which distinguishes this truly graceful fern: its long stipes, subtriangular figure, and the unusual direction, and complete separation of the lowest pair of pinne, are very strik- ing characteristics. In ‘English Botany’ it seems to have been figured twice, first under the name of Aspidium Thelypte- ris (. B. tab. 1018), and secondly, under that of Polypodium Phegopteris (EK. B. tab. 2224); neither of these figures is very successful. In Bolton's ‘Filices’ (tab. 20) the figure is far from characteristic; and Mr. Francis (Analysis, pl. 1, fig. 3) has, if I mistake not, figured an American species in its stead. Geographienl Range, Gymnocarpium Phegopteris is recorded as a native of every country in Europe, except Turkey and Greece; Ledebour, in his ‘Flora Rossica,’ gives the Altai Mountains, Lake Baikal, Kamtkatcha, and Unalaska, as Asiatic habitats; and Col. Bory de St. Vincent found it in Algeria. Through the kindness of my correspondents, Mr. Boott and Mr. Lea, I have received a species from many and distant stations in the United States, which I cannot distinguish from G. Phegopteris. In Great Britain it takes a range very similar to that of Al- losorus crispus: in Scotland it is found in every county north of the Firth of Forth; also in the Shetlands, Hebrides, and Orkneys: it is very common in the western Highlands, and enjoys a great range of elevation: it occurs near the summit of Ben More, Ben Lomond, and Ben Cruachan, and descends to nearly the sea-level on the banks of Loch Lomond and Loch Fyne. In EExeranp, beginning with the far North, we find it recorded by Dr. Johnston for Berwickshire; by Mr. Winch for Northumberland ; by the Rev. Mr. Pinder, Mr. Heysham, and many others, for Cumberland; by Mr. Bowman for Durham; by Miss Beever, Mr. Hindson, My. 'Thomp- son, and many others, for Westmoreland; by Mr. Hardy, Mr. Tatham, and a great many others, for Yorkshire; by Mr. Wilson, Mr. Sidebotham, Dr. Wood, and many others, for Lancashire. At this point we come to a check: it occurs but sparingly in Cheshire, for which county three localities 52 BEECH FERN. only are recorded: Mr. Pinder finds it at Mow Cop, Mr. Sidebotham at Werneth, and Mr. Bradbury, according to the ‘ Botanist’s Guide,’ in Early Banks Wood, near Staley Bridge, Dr. Wood informs me that he found it in profusion on the limestone rocks in Derbyshire; Mr. Pinder has found two localities in Staffordshire,—Ridge Hill and Madeley Manor ; it occurs in company with Allosorus crispus on the Titterstone Clee in Shropshire, and Mr. Westcott bas also found a station nearer Ludlow; I have found it abundantly near Amestrey quarry, in Herefordshire. ‘The following record of its discovery in Gloucestershire is interesting : — ‘‘ During a day’s ex- cursion in the Forest of Dean this summer, I had the pleasure of very un- expectedly meeting with that elegant fern Polypodium Phegopteris. About a mile and a half above Lydbrook, towards Coleford, out of a low wall by the road-side, grows Polypodium calcareum. The station for Phegopteris is nearly opposite this, on the other side of the road, a short distance within the wood. It is growing among bushes, in a boggy hit of ground ; I think in rather an unusual position, its favourite habitat being among moss on rocks and stones, amid the spray of waterfulls. Although a considerable patch of a hundred or two fronds, it had not attained to near that luxuri- ance and size of frond which makes it such a beautiful object in some more mountainous parts of the country. But it is an interesting addition to the ferns of Gloucestershire, in which county I am not aware that it has been previously recorded.”—Mr. E. T. Bennett, in Phytol. ui. 741. In Devon- shire, there are some dozen or more well-authenticated habitats for this fern: Mr. Ralfs has discovered it in many and distant stations on Dart- moor; Mr. Babington at Sheep’s Tor ; Miss Hill at Ilfracombe; the Rev. W. 8. Hore on the summit of Cock’s Tor; Mr. Kingston at Becky Falls. In Cornwall, Mr. Borrer found it at Tintagel, on the road towards Camel- ford; and, finally, it has been discovered in two widely separated localities in Sussex: first, by Mr. Jenner, “in a boggy spot on the forest, near Kidbrook Park pales, Forest Row”; and, secondly, by Messrs. Lloyd and M'‘Ennes, near the Balcombe station on the London and Brighton Railway: —‘‘In a somewhat shady portion of elevated ground, at a distance of about two miles from Balcombe, and near the line of the tunnel, we had the good fortune to find Polypodium Phegopteris in the most beautiful condition. The fronds were unusually large and luxuriant, averaging, when measured, together with the long naked stipes, more than two feet in length. Its luxuriance and delicate colour combined to render it a beautiful and truly interesting object.” — J. Lloyd and K. M‘Ennes, in Phytol. iv. 607. In consequence of*this record, many readers of the ‘ Phytologist ’ have been to the station indicated, and have found the species in great profusion ; in- deed, I incline to believe, it is generally distributed over the forest in the Balcombe vicinity. GYMNOCARPIUM PHEGOPTERIS. 53 In Nortu Wauzs I have noted upwards of thirty stations where I have myself observed it ; and at least an equal number have been recorded for Sourta WaALEs. In the Iste or Man it has been found by Professor E. Forbes. In Irezanp, the beech fern is of rare occurrence, and appears to grow nowhere abundantly. During a ramble of eight weeks in that beautiful island, I was never successful in finding it, although I examined many sta- tions that I thought well adapted for it; others, however, have been more fortunate. Mr. Mackay found it at the waterfall above Lough Eske, in the county Donegal; the late Mr. Thompson met with it on the banks of the Glenarve river, half a mile from Cushendall in the county Antrim; and Mr. Moore, of Glasnevin, observed it at) several mountain rills and water- falls in the same county. Mr. Thompson also gathered specimens upon Slieve Bignian, on rough ground two miles south of Slieve Croob, and on the Black Mountain, above Tollymore Park, all in the county Down: and on Carlingford Mountain, in the county Louth. My friend, Mr. E. T. Bennett, informs me that he has specimens collected on Garoom Mountain, Letterfrack, in Cunnemara, by Mr. Ellis. The late Dr. Taylor found it near Mr. Herbert’s residence at Muckruss, in Kerry; and Mr. Moore, Mr. Ward, and Dr. Harvey have observed it in the neighbourhood of Killarney. The late Mr. Templeton found it in Glen Ness, in Londonderry ; and, lastly, Mr. Mackay, and a number of botanists and tourists following his footsteps, have observed it at Powerscourt waterfall, in the county Wicklow. The more abundant distribution of this plant in Scotland and the North of England, leads one at first to regard it as a boreal, or, at least, as an alpine species; but this conclusion seems to be erroneous. My brother, who, as an invalid, resided for several years in the South of France, brought home speci- mens from Ax, Grasse, Montpellier, and Toulon; at the last- named town it grew almost at the sea-level, in company with Adiantum Capillus-Veneris ; the late Col. Bory de St. Vincent also found it on the Mediterranean coast, both French and Al- gerian : and the most boreal or alpine recorded French locality is in Auvergne. I know nothing of the conditions under which it occurs in Italy and Spain. In Great Britain it affects wet woods and waterfalls, delighting to wave its peculiarly graceful fronds within reach of the spray. In such situations, the rhi- zome intermingles with the moss, or winds about in the light moist earth, or creeps over the dripping surface of a rock, seeming to rejoice in the humidity of the atmosphere. 54 BEECH FERN. As the foregoing observations seem somewhat at variance with the opinions expressed by Mr. Watson, in his ‘ Cybele Britannica’ (iii. 254), I am bound in justice, both to that philo- sophical botanist and to the reader, to give his observations in extenso. “Scottish type of distribution. * * * Native. Rupestral, &e. It may at first appear an error to refer this fern to the Scottish or boreal type of distribution, when the zonal or latitudinal ranges are so wide or general, extending from the coast level to the high mountains, from the South of England to the extreme North of Scotland. It is the great varity of the plant in the most southerly and south-easterly provinces of England, that suggests the boreal rather than the British type. Of the twenty-two counties included in the four first provinces, four only have been reported to produce this species; and one of these (Middlesex) being little probable, and not certified on sufficient authority, can scarcely be reckoned in the census. Most of the other sixty counties doubtless pro- duce this fern, which has been actually reported from about forty-five of them. I do not know how far South this should be deemed a plant of the coast level. The altitude of its sta- tions in the Channel and Peninsula may not be quite so low as to warrant an indication of the coast level in those provinces. The term ‘ rupestral’ does not very accurately characterize the natural situations for the species; a combination of ‘ rupestral’ with ‘sylvestral’ and ‘uliginal’ would be nearer the actual conditions of its growth,—a combination of drainage with shade and humidity.” Description. The radicles of the beech fern are black and fibrous: its caudex or stolon-like rhizome is wiry, tough, and creeping: the fronds are thrown up in May, rising on erect, succulent, and very brittle stems, clothed with a few pale scattered scales. I have taken some pains to represent these young fronds at page 55, in every stage of development. They unfold with wonder- ful rapidity, attain perfection in July, and are destroyed by the early frosts on the approach of winter. The position of the frond is at first nearly erect, subsequently horizontal, and GYMNOCARPIUM PHEGOPTERIS. 55 finally pendulous ; its size varies from that of the frond repre- sented in figure a at page 49, to nine inches in length, exclu- sive of the stipes. The figure of the frond is triangular, and acute at the apex; it is pinnate, the pinne being pinnatifid, linear, and very acute at the apex: the lower pair of pinne are turned back from the apex of the frond; they are sessile, and united to the stipes by the midrib only: the remaining pinne point forwards, and are united to the stipes by the whole breadth of their base, and, with the exception of the second and third pair, are confluent with each other: the fronds, including the stipes, are pale green and hirsute, and are fertile only. 56 BEECH FERN. The lateral veins of the pinnules are few in number, alter- nate, almost invariably undivided, and extend to the margin, each bearing a circular cluster of capsules near its extremity ; these clusters consequently form a submarginal series : they are of a brown colour. In one of the detached pinnules in the cut at page 49 (fig. b), will be seen the position of the veins and the attachment of the capsules ; in the other (fig. c), the clus- ters of capsules are represented in their natural situation. Culture. The beech fern, to succeed thoroughly in pots, should be cultivated on the following plan. Fill a large flower-pot to the height of three inches with charcoal broken into small lumps ; on this arrange some Sphagnum, and cover it with peat-earth having a slight admixture of well-decayed leaf-mould and sand ; on this arrange the rhizomes of the ferns, and cover them with the same mixture. The pot should stand in a large feeder, kept constantly full of water. Planted on rock-work and ex- posed to wind and sun, it soon looks shabby and unsightly, but is very hardy, and will endure for many years if the soil be appropriate, as recommended above, and the supply of water liberal. 57 GYMNOCARPIUM DRYOPTERIS. a SOS = 5 AN oy SOS: 49 OM. WSS OAK FERN, (one-third the natural size). Characters, Genus.—GynmnocarpPium, (see page 49). Species. — Dryoprzris. Rhizome creeping: stipes erect, longer than the frond, purplish, glabrous: frond triple, deltoid, smooth, the three branches pinnate: pinne pinnatifid: lateral veins usually simple: involucre generally wanting: clusters of capsules near the extremity of each lateral vein, forming a mar- ginal series: colour bright green. Smnonpmes, Fiquees, &. Polypodium Dryopteris, Linn. Sp. Pl. 1555; Lightf. Fl. Scot. 678; Huds. Fl. Ang. 460; With. Arr. 780; Sm. E. F. iv. 288, EB. B. 616; Mack. Fl. Hib. 8388; Frane. 24; Newm. F’.123; Hook. and Arn. 567; Moore, 53. Polypodium Dryopteris, Bolt. Fil. Brit. 52, t. 28. Polystichum Dryopteris, Roth, Fl. Germ. iii. 80. 58 OAK FERN. Lastrea Dryopteris, Bory, Dict. Cluss. d’ Hist. Nat. 1x. 282; Newm. N. A. 15, F. 18. Polypodium ? Dryopteris, Bab. 409. Gymnocarpium Dryopteris, Newm. Phytol. iv. 871, App. xxiv. The name of “ oak fern,” derived from ‘‘ Dryopteris,” appears as inapplicable to this species as that of “ beech fern” to the one last described, and is adopted in deference to the opinions of others. The scientific name of Polypodium Dryopteris has been employed by all authors of repute, except two :— Roth, who describes it as having an involucre nearly similar to that which he assigns to Gymnocarpium Phegopteris, and who con- sequently refers it to his genus Polystichum ; and Bory, who refers it to his genus Lastrea, as already explained under G. Phegopteris. The figures of this fern, like those of the one last described, are less characteristic than its remarkable form would lead us to expect: those in Bolton’s ‘ Filices’ and ‘English Botany ’ are better than most; but that in Mr. Francis’s ‘ Analysis’ is incorrect as regards outline and position, the triple character of the frond not being well expressed: that in ‘ Flora Danica’ is also bad, and is supposed by some subsequent authors to have been intended for the Lophodium multiflorum of this work. Geographical Range. The geographical range of this species is very extensive. It is recorded ag a native of every country of Europe, except Greece and Turkey, ranging from the North Cape to the rocks of Gibraltar. It is to be regretted that Ledebour, whose admi- rable summary of habitats adds so largely to our knowledge of the geoeraphical distribution of European plants, should have united Dryopteris, Robertianum, and a third but still more dis- tinct form, the Polypodium disjunctum of Ruprecht (in Beitr. z. Pilanzenk. d. Russ. iii. 52), under the one specific name of Dryopteris: I say regretted, not that I wish to pass any criti- cism on the mere fact of this union, but that a vast number of habitats are thus lost to those who consider the species distinct, as they cannot be cited with any certainty, the habitats being assigned exclusively to Dryopteris, although that name confess- GYMNOCARPIUM DRYOPTERIS, 59 edly includes the three supposed species. It occurs in North- ern Asia, and Africa: it is also found throughout the United States of North America, ascending to the exposed summits of mountains, and almost reaching the extreme limits of vegeta- tion, yet occasionally luxuriating in woods, if amply provided with moisture for its wandering rhizome. In Great Britain, its range appears to be more restricted than that of the beech fern. If the island were divided by an oblique but irregular line, composed of the rivers Trent and Severn, and the Bristol Channel, we shall find G. Dryopteris present in most of the counties to the north-west of this line, and nearly absent from those to the south-east: this is the more remarkable, since many situations, especially in Cornwall, De- von, Dorset, Wilts, and Sussex, seem peculiarly adapted for the growth of such a fern; indeed, it has been recorded as grow- ing in Oxfordshire, Wiltshire, Sussex, Essex, Middlesex and Lincolnshire; but in each instance I have had reason to sus- pect the intentional introduction of the species, or an error in the name, since it certainly requires some proficiency in botany to distinguish between this and the following species. It is one of our most elegant and delicate ferns: like the last, it is almost entirely confined to wild and mountainous districts, wet woods, and the vicinity of waterfalls. On the most bleak and exposed mountains it ascends to a considerable height, shel- tering beneath ledges of rock, and under masses of stone. In Scottanp, the localities are extremely numerous, and include nearly all the counties. Eneianp.— Dr. Johnston records half-a-score stations in Berwickshire ; in Northumberland, Cumberland, Westmoreland, Durham, Yorkshire and Lancashire, the localities are far too numerous to mention. In Cheshire it is comparatively rare: Mr. Wilson found it of very large size two miles south of Warrington. In Derbyshire the rocks about Pleasley Forges, aud Chinley Hill, near Chapel-le-Frith, are recorded in the ‘ Botanist’s Guide’ as localities. In Staffordshire, it has been found by the Rev. Mr. Pinder in Trentham Park; by Mr. Beynon in the grounds of the Rev. Thomas Gisborne, of Yoxall Lodge; by Mr. Carter, in a lane leading from Oala- moore to Colton Hall, and also on a stone wall near Colton Hall. In Shropshire, treading in the footsteps of abler men, I observed it abundantly, in company with G. Phegopteris and Allosorus crispus, about the basaltic blocks on the ascent of the Titterstone Clee: it has also been found on the 60 OAK FERN. Hoar Edge, and at Whitcliffe coppice near Ludlow, by Mr. Westcott. In Herefordshire, Mr. Lees observed it in great profusion by the side of a shady path in a wood or copse on the southern side of the Teme, leading from a wooden bridge over the river in Mr. Knight's grounds, and not far from Downton Castle: I have found it near Amestrey quarry, and in im- mense profusion in Shobden-hill woods ; in the latter locality it covers acres of ground, is of small size, and all the divisions of the frond are convex or convolute: Mr. Bennett and Mr. Purchas have also found it sparingly in several woods in the vicinity of Ross; the last-named botanist states that it grows “in shady parts of Penyard, where its habit is very delicate, and very little fruit is produced.” In Worcestershire, My. Lees finds it plentifully on the Malvern Hills, in a stony ravine between the north and end hills, North of Great Malvern; Mr. Westcombe has found it on the north hill, and in Shrawley Wood: I am indebted to the liberality of the Botanical Society of London for specimens from the first of these loca- lities. In Gloucestershire, Withering has recorded its occurrence in woods north-east of the road up Frocester Hill: Mr. Lees informs me that it grows in the Forest of Dean, south-east of the rocks of New Weir, on the Wye, by a path through the woods towards Staunton: and Mr. EK. T. Ben- nett has found it in woods at the Lea Bailey, and also on Atterbury Hill, above Lydbrook. In Somersetshire, Mr. Flower informs me he has found it in rocky places on the Mendip Hulls, also near Bristol and near Bath. In Nort Watzs, as in Scotland, the localities are too numerous to par- ticularize. In the counties of Denbigh, Caernarvon, Cardigan and Merio- neth, I have observed it in more than a hundred localities. In Sours Watzs it is perhaps less abundant, but the recorded localities are very numerous. The oak fern is the rarest of all the species found in InELanp. Mr, Moore, of the Dublin Glasnevin Garden, has a specimen which he gathered in the county Antrim. Localities have been published in the counties Down, Galway and Kerry; but there is reason to fear that in each instance a mistake has accidentally crept into the record. Description, The radicles are black and fibrous: the caudex is a stolon- like rhizome, black, wiry, and creeping, often, when long esta- plished, forming a dense matted mass. The young fronds make their appearance in March and April, each at first resem- bling three little balls on wires, presenting a very curious and excellent diagnostic: these three balls gradually unfold, and GYMNOCARPIUM DRYOPTERIS. 61 display the triple character of the frond. The fronds goon ar- rive at maturity ; I have found them loaded with ripe seed as early as June: before winter they have entirely disappeared. The stipes is very slender, dark purple, and shining, and is frequently twice as long as the frond; it has a few scattered scales towards the base. The frond is triple, or composed of three distinct triangular portions, each of which has a short but distinct naked rachis, and these three unite with the stipes at an obtuse angle, as represented in the figure at page 57. Each division of the frond is pinnate, and the pinne are oppo- site, pinnate at the base, pinnatifid towards the centre, and ter- minating in a somewhat acute apex: the basal pinnules are sessile, and of nearly equal size, so that the four occurring at each union of the pinne with the rachis, form across. The midvein of each pinnule or ultimate division is sinuous, and the lateral veins are alternate and mostly simple; each termi- nates at the margin, and generally bears a circular cluster of dark brown capsules near its extremity: in some specimens these clusters are so densely crowded as to form a marginal line, in others they are scattered and very distant. The fronds are of a most vivid and beautiful green, in this respect surpass- ing every other species with which I am acquainted: when of full growth and mature, they are always fertile. In many spe- cimens, the frond is much more divided than the one which I have selected for my figure and description; and in such in- stances the veins and clusters of capsules partake of the subdi- vision. It should also be observed that the two lateral divisions of the fronds may, without impropriety, be termed the first pair of pinne, in which case their divisions would be pinnules, and not pinne, as I have here denominated them, from a desire to avoid a confusion of terms. In the cut at page 57, figure @ represents a portion of the creeping rhizome with three unexpanded fronds: figure b an expanded frond in a mature and abundantly fruited state (when sparingly fruited the divisions are broader and shorter) ; figure c a pinnule showing the veins and the points of attachment of the capsules ; and figure d another pinnule, with the clusters of capsules in situ. 62 OAK FERN. Culture. This is an extremely beautiful fern in cultivation, and flou- rishes on rock-work if supplied with a light and moist soil, which its stolon-like rhizomes can readily penetrate: this should be composed of bog-earth, leaf-mould and sand, without any admixture of loam. Exposure to the sun rapidly changes the colour of the leaves to a sickly yellow-green, and causes the divisions to assume a convolute form; but, if shaded by trees, which can readily be accomplished, a patch of the most exquisitely delicate and lovely green may be preserved through- out the summer months; for the production of young fronds continues up to the end of September. In flower-pots it is not so readily cultivated as in the open air: but still, where pure air is unattainable, as in our London gardens, it may be ma- naged by paying attention to the composition of the soil and the supply of moisture. He NE i ~ eae jee GYMNOCARPIUM ROBERTIANUM. 63 SMITH’S FERN, (natural size). i Se! Characters. Genus.—GyYMNOCARPIUM, (see page 49). Species. — Ropertranum. Rhizome creeping: stipes erect, fully as long as the frond, entirely covered, as well as the frond, with minute short-stalked glands, which give the plant a mealy appearance : frond oblong deltoid; the first or lowest pair of pinne are opposite, stipitate, and pinnate, the second pair 64 SMITH’S FERN. generally stipitate and pinnatifid; the remainder are sessile and pinnatifid: an obtuse angle is formed at the union of the first pair of pinne with the stipes and rachis; lateral veins in the ultimate divisions usually simple: clusters of capsules circular, forming a submarginal series: involucre generally wanting : colour dull green, somewhat glaucous. Spnonpmes, Figures, &e. Polypodium Dryopteris, Bolt. Fil. Brit. 53,1; Newm. FP’, (ed. 1), p. 26; Ledeb. Fl. Ross. xiv. 509. Polypodium Robertianum, Hofim. Deutschl. Fl. u. 10; Koch, Syn. (ed. 2), 974; Fries, Summa, 82; Moore, 55. Polypodium calcareum, Sm. Fl. Brit. 1117, H. F. iv. 283, E. B. 1525; Newm. F. 181; Franc. 24; Hook. and Arn. 567; Bab. 409. Lastrea calearea, Bory, Dict. Class. d’ Hist. Nat. ix. 232; Newm. N. A. 17. Lastrea Robertiana, Newm. FF. 13. Gymnocarpium Robertianum, Newm. Phyt. iv. 371, App. XXiv. We are indebted to Bolton for first noticing and describing this fern, which he treated as a variety of Polypodium Dryopte- vis. ‘I have observed,” says this author, “a variety of this plant growing in White Scars, near Ingleton, and in the Peak of Derbyshire, wherein the rib is taller, more firm, hard and robust, white and opaque; the leaves larger, the number of parts greater, and the largest of the lobes are again partly lobed, or divided down half-way to the middle rib: this variety I have figured, tab. 1, fig. 1.” The plant, however, was first named and characterized as a species by Hoffman, who describes it in these words : — “‘ Polypodium Robertianum. Fronde triangu- lari, foliolis ternis bipinnatis ; pinnis pinnulisque inferne pin- natifidis. Stipes glaucus, uno latere sulcatus. Frons tenera. Uterque nudo oculo subtili tomento, ad lentem brevissimis glan- dulis obsitis. Odor debilis Geranii Robertiani. Fructif. minuta.” — Hoffm. Deutschl. Fl. ii. 10, date 1795. Sir J. E. Smith, in 1804, redescribed the species under the name of Po- lypodium calcareum ; see Flor. Brit. p. 1117. His subsequent GYMNOCARPIUM ROBERTIANUM. 65 description in the ‘English Flora’ is in these words :—“ Frond three-branched ; branches doubly pinnate, erect, rather rigid ; segments obtuse, somewhat crenate. Masses of capsules crowded, finally confluent. * * * Root creeping, but stouter and less extended than in the preceding species (P. Dryopteris). Frond more firm and rigid: its stalk more scaly about the lower part. All the three branches upright, smaller than the last, rigid, and not loosely spreading. Masses of cap- sules more crowded, finally in some degree confluent, and of a browner hue.” Our British authors, Hooker and Babington, admit it as a species; the latter gives the following description, which, it may be observed, comprises diagnostics of more value than any pointed out by Bolton or Smith, although so admira- bly given by Hoffmann. “Fronds subternate, glandular-mealy, lower branches pinnate; pinne pinnatifid, obtuse, the upper- most nearly entire; sori marginal. Very different in habit from the preceding (P. Dryopteris), and always covered with very minute stalked glands, giving a mealy character to the sur- face. Frond not so decidedly trifid, the lower branches being much smaller in proportion to the middle one; all the three erect, rigid.” Mr. Wilson, whose authority in British ferns is certainly inferior to no one’s, also considers the present species distinct from G. Dryopteris, “I consider these plants,” says Mr. Wilson, ‘‘to be quite distinct, the former [G. Robertianum] having truly the erect habit which Smith describes ; I believe also that the pubescence is constantly present in P. calcareum. The two species are generally found in different habitats, but in a wood on the side of Ingleborough, as you go to Weather- cote, they are found in company. I have cultivated them side by side for many years, with their respective characters un- changed.” Mrs. Riley, of Papplewick, near Nottingham, has written a few lines on the same subject, which I shall take the liberty of quoting. “The pubescence, which is one distin- guishing character of P. calcareum, is a beautiful microscopic object, each slender stem supporting a globular head, but this pubescence soon dries, so that only on freshly gathered speci- mens can it be fully perceived or accurately examined. Though we found P. Dryopteris frequently in Wales, we never met with P. calcareum there; and although, like Mr. Wilson, we have cultivated them side by side for years, we can also testify that K 66 SMITH'S FERN. their respective characters remain unchanged.” In letters from the Rev. Mr. Bree, and the late Mr. Cameron of Birming- ham, opinions very similar to those now quoted are expressed, both these excellent botanists regarding G. Robertianum as a truly distinct species. It must however be observed that Sad- ler, in his treatise on the ferns of Hungary, admits this species with doubt, while the learned authors of the ‘Flore Fran- coise’ ignore it altogether, although of common occurrence in France; and Ledebour, in his ‘Flora Rossica,’ although well acquainted with it, advisedly unites it with Dryopteris. Origi- nally I entertained a similar opinion, an opinion which careful observation of the plant under cultivation has induced me to abandon. With regard to the specific name, I seem to have no choice but to adopt the earlier one, although our most distinguished English botanists, Hooker, Watson, and Babington, have advi- sedly selected the later. For every change of specific name, some sufficient reason ought to be assigned; yet neither Sir J. E. Smith, Sir W. J. Hooker, Mr. Watson, nor Mr. Babington, has given the least explanation of the change, although no one will presume to suppose either of these truly illustrious authors ignorant of Hotfmann’s prior description. My friend, Bory de St. Vincent, made this species a Lastrea in 1824, an arrangement which I adopted in 1814; but, not satisfied of its affinity with Bory’s type-species, Oreopteris, I have ventured to place it under my new genus, Gymnocarpium, as already explained. The figure of Dryopteris Tragi in Gerarde (Em. 1135), co- pied and reversed by the author of the ‘British Herbal’ (p. 48), without any acknowledgment, admirably represents this species, but there is nothing, either in the original or quoted de- scription, that applies exclusively to Robertianum ; on the con- trary, it 18 most manifest that Dryopteris is also included: the information that “it is oftentimes found in sunny places;” that it grows “upon heaps of rubbish,” &c., mingled, as it is, with much irrelevant matter, indicates the fusion of this species with the more common Dryopteris. There is a tolerably character- istic figure in Bolton’s ‘ Filices’ (tab. 1, fig. 1) under the name of Polypodium Dryopteris, and also in ‘ English Botany’ (1525), the latter under the name of P. caleareum; but the very elegant GYMNOCARPIUM ROBERTIANUM. 67 and pictorial representation in Francis’s ‘ Analysis’ (pl. 1, fig. 5), i8 certainly drawn from Dryopteris. Geographical Range. Our acquisition of precise knowledge of the geographical range of this species is greatly retarded by the incapacity or disinclination of botanists to distinguish between Gymnocar- pium Dryopteris and G. Robertianum. Sadler gives it asa native of Hungary, Germany and France. Through the kind- ness of Mr. Allcard, I possess fronds from several localities in Switzerland; and Godet says that it is abundant on old walls and bare rocks in the Jura, especially in the mountainous regions. I have little doubt of its being generally scattered over the continents of Europe and America: I possess a spe- cimen from the United States. In Great Britain this fern seems confined to the limestone districts, making itself particularly at home amidst the débris of limestone quarries. Its distribution I should describe as geological rather than geographical, and quite independent of latitudinal or altitudinal conditions. In the North of Enexanp it has been found in Durham, and occurs abundantly in Cumberland, Westmoreland, Yorkshire, and Lancashire. In Derbyshire, I am informed by the Rev. Mr. Pinder that it occurs plen- tifully at Matlock, and by Dr. Wood near Buxton : many other botanists confirm these localities. A cluster of counties further South, — Oxford- shire, Wiltshire, Gloucestershire, and Somersetshire, — also produce this species ; Oxfordshire and Wiltshire somewhat sparingly, the others abun- dantly : my nephew, Henry Newman, has obligingly given me specimens from five different stations near the town of Cirencester, and the Cotteswold Hills, in the same district, have a great number of localities recorded on the best authorities. Wates.—From the Welch localities I incline to omit that of Cwm Id- well, in Caernarvonshire ; while that of Llanferris, in Denbighshire, on the authority of Miss Potts, and from which, through the kindness of Mr. Kip- pist, I possess specimens, and that of Merthyr Tydfil, on the authority of Mr. Babington, must be retained. ScornanD and Ire Land have hitherto furnished no localities. 68 SMITH'S FERN. Aesctiption, The radicles are fibrous: the rhizome is dark brown and creeping. The fronds make their appearance in May, and both their habit and mode of unfolding differ from those of G. Dryopteris ; the three portions of the frond never assume the appearance of three little balls, which I have mentioned as an excellent diagnostic of G. Dryopteris, but all the pinnules ap- pear somewhat globular, the first pair of pinne differing from GYMNOCARPIUM ROBERTIANUM. 69 the second in little else than magnitude. In the figure at page 68, I have taken great pains to give a faithful representation of some young fronds: I divided the stipes of each, on account of its inconvenient length, and laying them on the block before me, made an accurate copy, both as regards size and figure. The stipes is much stouter and more succulent than that of G. Dryopteris, and I think also more sealy ; it is of the same dull green as the frond, whereas the stipes of G. Dryopteris is fre- quently purple or blackish, and has a more wiry appearance. The frond attains its full development in July, and matures its seed in August. The form of the expanded frond is nearly tri- angular, the base being shorter than the sides, and altogether not unlike that of the common brakes: the pinne are opposite; the first pair always have a short naked stalk; the second pair frequently have a similar stalk, but not invariably, and the naked stalk of the first pair of pinne is always shorter and rather more slender than the main rachis between the first and second pair, whereas in G. Dryopteris the three are of nearly equal length and thickness: the pinne are pinnate, the pin- nules deeply pinnatifid: all parts of the frond are covered with the “subtile tomentum” described by Hoffmann: this consists of a number of minute stalked glands. The bend, so observa- ble in G. Dryopteris at the point of union of its three branches, is much less marked in G. Robertianum. The lateral veins of the lobes of the pinnules are undivided, and the capsules are borne in circular clusters near the termination of each, as in both the preceding species. These clusters become confluent in the autumn, and form a continuous marginal series. I have made this description comparative rather than posi- tive, on account of the confusion which has long subsisted be- tween two closely allied species. Culture, This fern grows freely in the ordinary soil of gardens, but seems peculiarly to enjoy a plentiful admixture of limestone broken small: it suffers no injury from full exposure to the sun. When cultivated in the greenhouse, it should be planted 70 SMITH’S FERN. in a large pan, containing a mixture of small pieces of lime- stone, crumbled and sifted mortar from old walls, and free crumbling loam: the pan being partially filled with this mix- ture, the rhizomes should be carefully arranged on its surface, and these again covered with the mixture to the depth of an inch ; the pan thus prepared should be placed in the most airy and exposed part of the greenhouse, and no shelter of any kind placed over or around the fern. WOODSIA ILVENSIS. RAYS WOODSIA, (natural size). Characters, Genus.—Woopsia. Caudex tufted, terminating in a crown: midvein of ultimate divisions indistinct: lateral veins branched, free: involucre seated near the extremity of each branch, its base inclosing the base of a circular cluster of capsules, its margin split into capillary segments, which mingle with the capsules. Species.—Invrnsis. Stipes sometimes as long as the frond, but generally shorter, distinctly articulated towards the base: frond lanceolate, pinnate: pinne oblong, subopposite, pin- natifid, scaly beneath. 72 RAYS WOODSIA. Smnonymes, Figures, &e. Acrostichum Jlvense, Huds. Fl. Ang. 451; Bolt. Ful. Brit. 14, t. 9. Polypodium arvonicum, With. Arr. 774. Woodsia Ilvensis, R. Br. Trans. Linn. Soc. xi. 1738; Sm. EB. F. iv. 322, E. B. §. 2616; Newm. N. A. 18, F. 187; Hook. and Arn. 667; Bab. 409, ad partem. Woodsia Raiana, Newm. F. 140, a name suggested in 1844. The figures of this fern in Bolton’s ‘ Filices’ (tab. 9), ‘ Eng- lish Botany’ (Suppl. 2616), and Francis’s ‘ Analysis’ (pl. i. f. 6 A), give but a very imperfect idea of the plant; the latter is particularly unlike. Of the continental figures I entertain so much doubt as to their representing our British plant, that I forbear quoting them. The doubt, of course, is equally appli- cable to nomenclature, and I name the species as Woodsia Ilvensis of our British authors, without attempting to prove it the Acrostichum Ilvense of Linneus. I have no doubt that it is the “ Filix alpina, Pedicularis rubre foliis subtus villosis ” of Ray, although this description is referred by Sir J. E, Smith to the plant I have next described. JI am extremely gratified to find that Mr. Wilson entertains a similar opinion. In a letter received from that gentleman, he says, “ I cannot help thinking that the synonym in Ray’s ‘Synopsis,’ usually applied to the other species, belongs to this fern, notwithstanding that in the locality pointed out by Ray, on Snowdon, I find only W. hyperborea, which I have never seen there ‘ foliis sex circiter digitis longis,’ and which less resembles Pedicularis.” Ray’s description appears to me to lay stress upon all the points in which the present plant chiefly differs from the next. There can be scarcely a doubt that the plant now under consideration is the Polypodium arvonicum of Withering, whose description —“‘Leafits spear-shaped, wing-cleft, hairy underneath ; stem hairy” (Arr. iii. 774),— is peculiarly apt. I am indebted to the kindness of Dr. Robert Brown, for specimens gathered by him- self in the North of Europe, of the true Acrostichum Ilvense of Linneus, one of which is figured on the opposite page ; and these, while agreeing exactly with the authentic Linnean specimen in the herbariuin of the Linnean Society, differ so WOODSIA ILVENSIS. 73 much from the British plant, that I hesitate to pronounce them identical. Should the British plant prove distinct, I beg to propose that it should bear the name of Woodsia Raiana. The doubt as to this species being distinct from W. alpina (W. hy- perborea of Smith), will again be noticed under my description of that species. ‘out % sone? With regard to the genus to which these little plants are re- ferrible, considerable difference of opinion appears to prevail. Linneus, Bolton, Liljeblad, and Hudson, place them in the L 74 RAY’S WOODSIA. genus Acrostichum: Withering, Sowerby, Willdenow, Sprengel, Schkuhr, Wahlenberg, and Presl, in the genus Polypodium : Lamarck and Decandolle in the genus Ceterach: Smith, Hook- er, Sadler, and Babington, in the genus Woodsia, instituted by Dr. Robert Brown purposely to receive them: my own judg- ment, if deduced from an inspection of the plants only, and without reference to books, would lead me to unite the genera Woodsia and Cystopteris. The description of this genus was published in the eleventh volume of the Linnean ‘ Transac- tions,’ and its distinguishing character consists in the peculiar structure of the involucre, which is inserted under the cluster of capsules, the attachment of which it surrounds, while its margin, as in the linear involucre of Pteris, already described, is split into a number of articulated capillary segments, which intermingle with the capsules and partially conceal them. Geographical Range. The geographical range of Woodsia Ilvensis is somewhat extensive. It is of common occurrence in Norway, Lapland, Sweden, and Northern Russia: it occurs, but less frequently, in Denmark, Germany, Hungary, France, Italy, and Spain, and extends throughout Siberia into Kamtchatka: it is also recorded as a native of North America. But in the whole of these instances I can only speak as to the record of the name; I will not venture to assert that the British plant is thus widely distributed. In Britain this is one of the rarest of our ferns: it roots in the fissures of rocks in the most bleak and exposed mountain- ous regions: it has hitherto occurred to botanists in two coun- ties in England, one in Wales, and probably three or four in Scotland: but this excessive rarity is perhaps partly ideal, as every year seems to extend the number of ascertained localities. ForrarsHirE.—I am indebted to Dr. Greville for a specimen from the Clova mountains ; and the very fine specimen represented at fig. c (page 71), was gathered in August, 1836, in Glen Fiadh, by Mr. Wilson, who most obligingly favoured me with the drawing, of which that figure is a fac simile copy. Mr. Tatham, of Settle, the Messrs. Backhouse, Mr. West- combe, and several other botanists, have observed it in the same glen. WOODSIA ILVENSIS. 75 DoumrrtessHirE and Presiussurre.—tThe chief station in the United Kingdom for Woodsia Ilvensis appears to be the vicinity of Moffat and Kirkpatrick, near the northern boundary of the county of Dumfries. The first notice is from Mr. William Stevens, under date of December, 1848; it was published in the January number of the ‘ Phytologist’ for 1849, and is as follows :—‘ Woodsia Ilvensis : this rare and handsome little fern I found in considerable abundance, on very steep crumbling rocks, amongst the hills dividing the counties of Dumfries and Peebles, in July last. It is growing in dense tufts in the crevices of the rocks, and very luxuriant, many of the fronds measuring nearly six inches in length.” — Phytol. iii. 892. My next information is from the Rev. William Little, who says “it is found in several stations on the Moffat Hills: one of these stations is on the farm of Corehead, about four miles north of the town of Moffat. The plant here grows upon exposed rocks, its roots often wedged in their crevices, so as to render it difficult, and in some cases impossible, to extri- cate them. Another locality is about six miles east of this, ina ravine near Loch Skene. Here the fern grows among crumbling rocks, and often spreads its roots under loose stones. In this station it attains a much lar- ger size than in the former. The altitude of the former locality is about 1,200 feet, of the latter, 2,000.” My third correspondent on this sub- ject is Mr. Johnstone, of Catlins, near Dumfries, who writes thus : —‘‘In the autumn of 1850, while botanizing over the mountains bordering Dum- friesshire and Selkirkshire, with a description of the habitat furnished by a friend, who had previously seen it, I succeeded in finding the Woodsias in a beautiful little glen, of very brittle clay-slate formation, scattered over with birch and mountain ash, and having a little mountain rivulet running through it. At one part the glen turns, making an obtuse angle, and the Woodsias are only to be found on the right hand side, and do not pass the angle; they grow over a space of about two hundred yards, beginning at a foot from the ground, and ascending the almost perpendicular rocks to the height of thirty feet. Pursuing the same route in 1851, I had the pleasure of discovering another station, some miles distant, in the same formation, and having the same aspect, the only noticeable differences being that the second glen is wider and longer, with more soil on the rocks, and that consequently the plants are much more luxuriant in their growth, the fronds being six and seven inches long.” Duruam.—Mry. Winch, in his ‘Flora of Northumberland and Durham,’ gives these localities : —‘‘ Near the summit of some bold basaltic rocks, called Falcon Clints, about ten miles west of Middleton, in Teesdale, Afr. S. Halestone. At the foot of basaltic rocks, on the Durham side of the river Tees, about two hundred yards below Cauldron Snout, Mr. J. Back- house.” Mr. Winch observes that these localities must be near together. Mr. Simpson observed the plant there in 1838, and has kindly presented 76 RAYS WOODSIA. me with a frond. “ Recrossing the bridge,” says that gentleman, “ we pursued the course of the stream, which, almost immediately below the Snout, takes a sudden turn, and thus we found our track hemmed in by the over-laden Tees on our right hand, and the lofty basaltic rocks called Falcon Clints on our left. My eye was now anxiously directed to the face of these rocks, to discover, if possible, the chief object in taking our present cowurse—Woodsia Ilyensis. Rain now began to fall heavily, and the wind, which had been all day very tempestuous, bore it against us so as to render observation, either of locality or objects, very imperfect. However, after tracing, as near as I can judge, about four hundred yards, I espied some small specks of green through the broken fragments of a stream which poured over the Clints, and under which T soon stood, pulling hastily the patches TI had seen, and these, to my delight, proved to be two small plants of the Woodsia, mixed with a few fronds of Asplenium viride and Cysto- pteris fragilis.” Myr. King found several specimens in 1841. “Here,” says Mr. King, “I cast around many an anxious look for Woodsia Ivensis ; at length, after much searching, and a good wetting from the drip of the water from the huge basaltic rocks, to my great joy I espied two small plants, which were instantly secured : a little farther on we saw three more under a bush of Prunus Padus, but, not liking to destroy the plant, we left the roots of these in the crevice of the rock where they were growing.” Mr. J. Backhouse, jun., Mr. Babington, Mr. Borrer, and other botanists, have repeatedly verified this Falcon Clints station ; and I have to acknowledge my thanks to these botanists for the opportunity of examining and compar- ing specimens, and to Mr. Kippist for a specimen gathered in the same Joca- lity by Mr. Woods : the five fronds represented at 6, in the cut at page 71, are from this station, (see Phytol. i. 74 and 114). WeEsTMORELAND.—The following interesting note appeared in the ‘ Phy- tologist’ for October, 1842. ‘On the 17th of 8th month [August], 1798, my father gathered a single frond of a fern from Crosby-Ravensworth Church, Westmoreland. Being unable to name it, he showed it to several botanists in London, who could not decide what it was ; Lewis Dillwyn at length sent it to Sir J. EX. Smith, who returned the specimen labelled as follows: —‘Polypodium arvonicum, With. et Fl. Brit. J. EB. Smith. P. ilvense, With. é Acyost. ilvense, Huds. (not Linn.) Acr. alpinum, Bolt.’ The original specimen is now in my possession, with Sir J. E. Smith's auto- graph ; the frond is 3} inches in length, from the bottom of the rachis to the apex, and about 2 inches from the lowest pinne to the apex. The church has been pulled down within the last few years.”—Silvanus Thomp- son, in Phytol. i. 331. I have not seen this specimen, and therefore enter- tain adoubt whether it belong to this species or the next. ‘A new station for Woodsia Ilvensis has been found in Westmoreland. As it is many miles from the Teesdale habitat, I consider it an interesting and important WOODSIA ILVENSIS. 77 discovery. It was found by Isaac Hudhart, a gardener, who has stu- died the ferns, and has been very successful in finding all the best ferns of the district. He has wisely told no one about the locality of the Woodsia but myself; for I consider it absolutely necessary to keep secure the habitats of good ferns now, as, if known, they are sure to be extermi- nated. There may be about twenty plants.” — Mr. F. Clowes, in Phytol. iv. 1134, I am indebted to Mr. Clowes for a frond from this locality, and find it correctly named. CarRNARVONSHIRE. — Mr. Wilson found this fern near Llyn-y-ewn, on Glyder Vawr, in 1824; and it has since been seen by Mr. Roberts, of Bangor, and I believe several other botanists, directed to the spot by Mr. Wilson. I am indebted to the kindness of Mr. Wilson and Mr. Pamplin, for specimens from the Llyn-y-cwn locality ; the two fronds represented at a, on page 71, are from this station. Dr. Allchin informs me that he found this species near Llyn-y-cwn in 1851; and I am also in- formed by another botanist that he has found it ‘‘above” Llyn-y-cwn. My correspondent says that ‘‘as many as a hundred plants are visible, fortu- nately, however, nearly the whole of them are inaccessible, and cannot pos- sibly be obtained without the assistance of a ladder.” — Phytol. iii. 789. When I received this information I quite supposed the station the same as Mr. Wilson’s, but now I think otherwise, for the plant has since been found in two stations, one above, the other below, Llyn-y-cwn. Mr. Latimer Clark discovered a third station, “‘on rocks of a peculiar character, resem- bling limestone, which crop out on the Glyder or left hand side of the Pass of Lianberis, looking towards Capel Curig: there may be a dozen small plants scattered over the rock, which is barren, arid, and exposed, and the plant seems dwindling to extinction.” William Williams, an active and intelligent Snowdon guide, is but too well acquainted with the Snowdonian stations of both the Woodsias: I don’t think he would willingly extermi- nate them, but he is subject to such constant solicitations from botanical tourists to be conducted to the localities, that the utter extermination of these ferns from all accessible places is not only certain, but also imminent. A passage from Ray's ‘ Synopsis’ should be quoted here, since it goes far to show that both this species and the next have been found on Clog- wyn-y-Garnedh ; the comparison of the leaves with those of Pedicularis seems to agree with the present species. “‘ Filicula Alpina Pedicularis rubris foliis subtus villosis. Small Stone Fern with Red-rattle leaves hairy underneath. Nusquam vidimus quam in udis scopulis Clogwyn y Garnedh dictis juxta summitatem montis Gwydhve totius Cambrie altissimi. D. Lloyd. E petrarum rimis emergit, non erecta sed aliquantulum procum- bens Ceterach aut Trichomanis ad instar, foltis sex circiter digitos longis. It’s a very rare plant even at Snowdon.”—Syn. p. 27. cs RAY'S WOODSIA. Description. The radicles are black, wiry, and sparingly branched: the caudex is thick, tufted, and lasting many years: the stipes is very distinctly jointed at a distance of three quarters of an inch from its junction with the caudex ; the articulation is swollen, and very obvious to the naked eye when the frond is mature ; at this point, so far as my observation has extended, separation generally takes place, the basal portion of each stipes adhering to the caudex. This very interesting character, common to all plants of the genus, is well described by Wahlenberg (Fl. Lapp.) The stipes, above this joint, as well as the rachis, is clothed with lanceolate scales, and glittering articulated hairs. Mr. Wollaston, whose valuable observations on the British ferns under cultivation are interspersed throughout this little mono- graph, informs me that the vernation of this fern usually begins about the middle of March; it then throws up a tuft of elon- gated “ shepherd’s-crook-formed” fronds, which are densely covered beneath with light-coloured, chaffy, and hairy scales, and which exhibit no appearance whatever of fructification, even until they have attained a considerable degree of maturity. The form of the frond is lanceolate and pinnate: the pinne are in pairs and generally opposite at the base of the frond, but becoming alternate towards the apex ; they are sessile, oblong, obtuse, deeply lobed, and in some specimens pinnatifid, in which case the lobes are crenate, as in figure c, (page 71): the upper surface of the frond appears smooth to the naked eye, but under alens of high power, a few long bristle-like scales are observable, all of them pointing outwards; the under surface appears pubescent, and, with the aid of a lens, this pubescence is found to consist, jirst, of very long, pointed, narrow scales, which are more particularly abundant about the midrib; se- condly, of glittering and articulated hairs, which are scattered over nearly the entire surface; and, thirdly, of the capillary segments of the involucres, which are also glittering and arti- culated. The capsules are placed in circular clusters near the margins of the lobes or pinnules; they are frequently concealed by the pubescence already described. WOODSIA ALPINA. 79 BOLTON’S WOODSIA, (natural size). Characters. Genus.—Woopsta, (see page 71). Species. — ALrina. Caudex tufted: stipes shorter than the frond, articulated near its base: frond narrow-linear, pinnate : pinne alternate, deltoid, obtuse, lobed. Synonymes, Figures, &e. Polypodium fontanum, Herb. Linn. Acrostichum Ilvense, With. Arr. 649. 80 BOLTON’S WOODSIA. Acrostichum alpinum, Bolt. Fil. Brit. 76, t. 42. Acrostichum hyperboreum, Liljeblad, St. Tr. 201, t. 8. Woodsia hyperborea, R. Br. Tr. Linn. Soc. xi. 173; Sm. E. F. iv. 323, ? HE. B. 2023; Hook. and Arn. 567. Woodsia alpina, Newm. N. A. 18, F. 148, Phyt. App. xxvii. This little fern is excellently represented by Bolton, whose figure is so like my own that I thought it quite unnecessary to copy it, otherwise I should have done so, with a view of con- firming the specific name; also by Bauer (in illustration of Dr. Robert Brown’s paper in the Linnean ‘ Transactions’), and by several continental authors. With regard to the specific name, I have proposed a change which may, at first sight, appear to be somewhat capricious, but which, when investigated, will, I trust, be found in accordance with the received principles of botanical nomenclature. The specific name of “ hyperborea”’ has been applied to this plant by Liljeblad, Swartz, Willdenow, Brown, Wahlenberg, Smith, Hooker, and many other botanists; indeed, it seems so sanc- tioned by authority, that it is not without great reluctance that I venture on the alteration which I will now attempt to justi- fy. The first description of this fern that I can find is that in Bolton’s ‘ Filices ;’ it is under the name of Acrostichum alpi- num, and is as follows : — “The root of this little Acrostichum consists of a few black, hard branches, connected to a small head, and furnished with black, hard, capillary fibres. The vib of the first leaf, when full grown, is about three inches high, of a pale brownish green colour, slender, and smooth, being quite destitute of hairs. Second leaves six or seven pairs, op- posite below, alternate above, of a triangular figure, obtuse at the corners of three or four of the lower pairs, but all of equal size and remote, two or three of the upper gradually lessening and growing closer together. Lobes of the second leaves most commonly five, two on each side of the rib and one at the end; they are of a roundish figure, grow close together, and are ob- scurely crenated round the margin. The colour on the upper side is a brownish kind of green; the under side thickly covered with a brown hairy nap. The lower figure represents one of the second leaves as it appeared when a little magnified : the seed-vessels are disposed in three or four clusters on each lobe, partly hidden among the numerous strong brown hairy filaments, WOODSIA ALPINA. 81 by which also the whole under side of the leaf, quite to the mar- gin, is thickly covered. The specimen above described is very exactly figured on plate 42, and is a plant so perfectly distinct from the Acrostichum Ilvense, in its usual state, that it seems to me unreasonable to suppose them both of the same species. The Acrostichum Ilvense, described in the former part of this work (page 14), and accurately figured on plate 9, was brought from Snowdon. Oeder, in ‘ Flora Danica,’ has given an excel- lent figure of the same plant (tab. 391), and the figure in Pluk. Phyt. tab. 179, fig. 4 (which is cited by Linneus in Flo. Suecica, ed. 2, No. 938), agrees pretty aptly with both Oeder’s and my own. But all are very different from the Acrostichum alpi- num above described. The specimen figured on plate 42 was brought from Scotland, but the plant is also a native of South Britain, for in a volume of dried plants, collected by the late Mr. Knowlton, I have seen specimens of the same plant with this note in his own handwriting: — ‘From the mountains of Wales.’ From these and some other circumstances I am in- duced to think that two species of British ferns have been con- founded together under the name of Acrostichum Ilvense, and I believe that future observation will confirm the truth now discovered.” I have quoted the description entire, in order to remove any doubt as to the plant now under consideration being identical with that described by Bolton, although the testimony of Brown and Smith, who cite Bolton’s name as a synonyme, might per- haps be deemed sufficient to decide this branch of the inquiry. We then arrive at the question of date. Bolton’s work on the British ferns, although paged continuously, was-published in two parts, the first at Leeds, in 1785, the second at Hudders- field, in 1790; Acrostichum alpinum occurs in the second part. The name of Acrostichum hyperboreum was published by Lil- jeblad in the Stockholm ‘ Transactions’ for 1793, and is the authority quoted by Smith and others. Liljeblad’s descrip- tion may possibly be dated one year earlier: but admitting this, we inust still give Bolton a priority of two years, quite suffi- cient to decide a question of nomenclature : yet it is somewhat remarkable that Lamarck and Decandolle are the only authors who have adopted the specific name of alpinum. M 8 BOLTON'S WOODSIA. Geographical Arange. On the continent of Europe this fern has been observed in Norway, Lapland, Sweden, European and Asiatic Russia, Ger- many, Hungary, Switzerland, France and Spain. I am not aware of its occurrence in Africa, but in North America a closely approximate species has been found on the Rocky Mountains, which is, however, considered distinct by Dr. Ro- bert Brown, who has described it under the name of Woodsia glabella. In Great Britain its ascertained range seems restricted to two Scotch and one Welch county. PertusHire.— According to Smith and other authorities, Mr. Dickson, Mr. G. Don, and the Rev. Dr. Stuart, found this plant on Ben Lawers. Mr. Wilson informs me that he found it on Ben Lawers, Mael-dun-Crosk, Craig-Challiach, and other mountains, in 1827, and again on Ben Lawers in 1836: Dr. Balfour found it again on Ben Lawers in 1847, (Phytol. iii. 81); Mr. Watson gives me Craig-Challiach, on the authority of Mr. Maughan ; and, lastly, Mr. Johnstone informs me that he has beautiful specimens gathered in August, 1853, on Ben Lawers, in the parish of Kenmare. Forrarsuirne.—Dr. Balfour gathered this little fern in Glen Fiadh in 1847, (Phytol. iti. 81). DumrrinssHirE ?— The Rey. Mr. Little thinks that Woodsia alpina does not grow on the Moffat Hills; My. Johnstone, on the contrary, thinks the form so designated does grow in that locality, and has obligingly sent me a frond which certainly goes far to corroborate this opinion : but then, he also expresses a doubt as to the distinctness of the two. His remarks on this subject are as follow: — “ You inquire whether both species of Woodsia grow at the station on the Moffat Hills. I may answer that the only differences that I can see between the supposed species, are that the pinne of alpina are a little more rounded than those of Ilvensis usually are, and that the stipes of Ilvensis is of a reddish brown colour, while that of alpina ‘is greener : in all other respects they are alike. They have the same scat- tered roundish sori; the same hairy and chaffy stipes and rachis ; and the same lanceolate and pinnate fronds. Can the slight differences I have no- ticed constitute a species ? I think not. I have now before me more than fifty fronds, and no two of them are alike. I think that alpina may, with all safety, be set down as a variety of Ilvensis, and not a very marked one. T have cultivated them for some years, and find them retain their pecu- WOODSIA ALPINA. 83 liarities. The glens in which the Woodsias occur run exactly North and South, and consequently face East and West; the Woodsias almost inva- riably occur with a West exposure.” I must also add, in contravention of Mr. Johnstone’s opinion, a remark of Mr. Wollaston, which is verified by the observation of Mr. Backhouse, jun., that Woodsia Ilvensis occasionally produces fronds like those of W. alpina; and therefore, the fact that such fronds occur on the Moffat Hills, does not necessarily prove the identity of the two species. CAERNARVONSHIRE.— This fern was found by Mr. Wilson on Clogwyn- y-Garnedh, one of the precipices of Snowdon which faces the Kast, as observed by that botanist, on whose authority Smith corrected a supposed error of Ray and others, who describe the precipice as facing the North- west. Mr. Wilson’s habitat, as well as the aspect of that habitat, is abun- dantly confirmed below ; but another botanist, who wishes to remain ano- nymous, confirms Ray’s description as well. He says, ‘‘ You are wrong in accepting Wilson’s alteration of the aspect of Ray’s habitat. Woodsia grows abundantly on these precipices, facing both the Hast and the North- west; the name of Cloewyn-y-Garnedh applies equally to both aspects, and as to the species, I cannot say which: are there really two?” I should not quote a writer who chooses to remain anonymous, but that I feel a real pleasure in confirming any statement of our immortal Ray, and I know that my correspondent’s statement is to be relied on. Mr. Latimer Clark, whose engagements in connexion with the building of the tubular bridge over the Menai detained him for months in the Snowdon district, found this fern in two localities. He says, ‘ Woodsia alpina grows in that vast chasm called Clogwyn-y-Gamedh, which forms the eastern precipice of Snowdon. It occurs on some almost inaccessible rocks facing the East, above the lake called Glas Llyn: the rock is of a peculiar character, unlike other rocks in the neighbourhood, and resembles limestone : the ledges on which the fern grows cannot be reached without great danger, and many of them are perfectly inaccessible, so that there is no danger of its eradication. The same rock crops out in the Pass of Llanberis, facing the North, on the Snowdon side of the Pass, and here it is again accompanied by Woodsia alpina, but most of the ledges where it grows are of an equally unapproach- able character.” In August, 1853, Mr George Maw visited this Llanberis Pass locality, and brought away some very beautiful specimens, which he has most kindly shown me: the rock on which they occur is called Moel Sichog ; it is on the right or Snowdon side of the Pass, going from Llan- beris towards Capel Cerig. I cannot conclude this notice of habitats without expressing my warmest thanks to the gentlemen who have so kindly and readily responded to all my inquiries. 84 BOLTON 8S WOODSIA. Description. After so ample a description as that already quoted from Bolton, it may perhaps be thought unnecessary to give one of my own; but I scarcely think myself justified in such a depar- ture from my usual course as to omit it. The radicles are black, wiry, and branched: the caudex is tufted, large in pro- portion to the entire plant, and apparently very enduring. In its vernation this species, as Mr. Wollaston informs me, differs essentially from Woodsia Ilvensis: it forms a crest of simply circinate fronds, much more thinly clothed than Tlvensis with buff-coloured scales, and its clusters of capsules are very con- spicuous, even in its youngest state, and immediately it begins to unfold: unlike those of Ilvensis, its fronds are almost per- sistent, the plant appearing to be scarcely ever in a state of perfect rest. The stipes is slender, and nearly smooth; it has afew small, scattered, and pointed scales, and some very slen- der articulated hairs, amounting in a very young state to a fine pubescence, but both these appear to be easily removed, since in nearly all the mature dried specimens I have seen, they were entirely wanting: the stipes is articulated, like that of the pre- ceding species; and I have a specimen which has two articula- tions, a circumstance which I imagine is of unusual occurrence. The shape of the frond is long, narrow, linear, and pinnate: the pinne are perfectly separate, sometimes distant, almost in- variably alternate, and in shape somewhat triangular, the angles being rounded; they are lobed; the lobes are five or seven in number, and very obtuse; the first superior lobe is sometimes considerably larger than the rest, and slightly notched; the apex of the frond is pinnatifid and pointed: the margins and under surface of the pinne are sparingly furnished with articu- lated hairs. The venation is rather anomalous: no particular vein appears to possess a very decided superiority over the others; they are occasionally simple, but generally divided into two or three branches; they do not quite reach the margin of the pinna, and the clusters of capsules, when present, are pla- ced at their extremity: figure a in the cut on the opposite page represents a pinna of this species, with the capsules in situ ; figure b shows the venation, and the points of attachinent of WOODSTA ALPINA. 85 the capsules after their removal. It may also be here observed, that figure ¢ represents a somewhat intermediate form from Scotland ; figure d another from Llyn-y-cwn, and, judging from the locality, probably referrible to W. Ilvensis; and figure e, a plant of the present species from Ben Lawers. Concerning the distinctness of spe- cles so similar as this and the preced- ing, much difference of opinion must always prevail. It will be seen, by my quotation from Bolton, that that au- thor strongly insists on maintaining them as species. Sir J. EH. Smith also considers them distinct; in describing this species, he contrasts the charac- ters of the two in these words:—“ Ra- ther smaller than the foregoing, and less [? more] upright, with a more [? less] rusty aspect. Stalk less elas- tic. Leaflets shorter, rounder, with more rounded lobes, and broader at the base, not quite so deeply pinnatifid. The two species appear to me to be very distinct, though similar.” — Eng. Flora, iv. 823. Sadler gives them as distinct, without a comment, but does not appear to me to distinguish them very cleverly by his descriptions, (‘De Filicibus Veris,’ p. 45). Wahlenberg insists on their distinctness, drawing an elaborate contrast between them, (Fl. Lapp. 280). Lastly, Mr. Wilson yemarks, “I have never had the least difficulty in distinguishing these plants, the first by its ovate, the second by its oblong, pinne,” (Phytol. i. 74). All these are weighty authori- ties; but, on the other side, I find others equally entitled to respect. Dr. Robert Brown observes,—“ These two plants are. indeed go nearly related that I find myself unable to construct for them clear specific characters, and therefore, in proposing them here as distinct species, I am, from want of sufficient 86 BOLTON'S WOODSIA. materials to determine the question, rather following the prevail- ing opinion than my own.” — Trans. Linn. Soc. ix. 172. My. Babington has treated them as forms of one species, and makes this observation : — “ Our plants appear to form but one spe- cies, although they present three very different appearances.” —‘ Manual,’ 409. Culture, Both this fern and the preceding are comparatively easy of cultivation under glass, care being taken to avoid excessive heat: no sunshine whatever should be allowed to reach them, not so much from any ill effect to be apprehended from the di- rect rays of the sun, as from the excess of heat always produced in a glazed case from the shining of the sun thereon: sunshine, accompanied by the fresh mountain breeze, is perfectly innocu- ous. If potted, the pot should be first filled with thin pieces of stone, placed vertically ; basalt, commonly known as “ dew stone” granite, freestone, and sandstone, have all been found to answer: after the stone has been arranged so as to surround the rim of the pot, the radicles of the fern should be carefully arranged between the central pieces, leaving the crown of the caudex just visible: then prepare a finely sifted mixture of thoroughly decayed leaf-mould, silver sand, and peat earth; introduce this in a nearly dry state, and gently shake it down amongst the stones, until all the interstices are filled: on wa- tering the surface, this ight mould will probably disappear ; it should be repeatedly filled up and watered, until the fragments of stone only crop out here and there above the surface of the pot. Mr. Wollaston slightly differs in his directions for culti- vating these ferns, recommending the addition of loam, as mor® retentive of moisture. The Rev. Mr. Little informs me that Woodsia Ilvensis grows freely with him in a cool greenhouse, and also under a frame, but that it thrives still more freely in the open air, in a shady corner of the garden. W. alpina is more difficult to cultivate : he has lost it several times. Mr. Little adds that the Moffat Hills are of the lower Silurian formation. CYSTOPTERIS FRAGILIS. 87 BRITTLE FERN, (natural size). Characters, Genus. — Cystorpreris. Midvein of ultimate divisions dis- tinct but sinuous: lateral veins branched, free: involucre attached almost beneath the mass of capsules, half way between the midvein and the extremity, directed at first backwards, then 88 BRITTLE FERN. upwards, then forwards, and almost covering the circular mass of young capsules like a hood, its anterior margin split into unequal and often capillary segments, like that of Woodsia. Species. —Fraeinis. Caudex elongated horizontally but very slowly, its elongation due solely to the development and decay of fronds, its growing extremity erect, crowned with un- developed fronds: stipes shorter than the frond: frond erect, lanceolate, pinnate: pinne ascending, distinct, subopposite, pinnate: involucre generally present: seeds echinate: colour dull green. Synonymes, Higuees, we. Polypodium fragile, Linn. Sp. Pl. 1553; Lightf. Fl. Scot. 677; Huds. Fl. Ang. 459; With. Arr. 779. Polipodium fragile, Bolt. Fil. Brit. 50, t. 27 & 46. Polypodium rheticum, Huds. Fl. Ang. 458; With. Arr. 780; Bolt. Fil. Brit. part ii. 80, t. 45, but certainly not of Linn. Sp. Pl. 1552, as cited by early English authors. Polypodium polymorphum, Villars, Dawph. iii. 847. Polypodium dentatum, Dicks. Crypt. fase. iii. 1, t. 7, £ 1, Td. Hi. Sicc. fase. 16; With. Arr. 776. Polypodium trifidum, With. Arr. 779. Cyathea fragilis, Roth, Fl. Germ. i. 94. Cystea fragilis, Sm. H. F’. iv. 298, B. B. 1587. Cystea dentata, Sm. H. F. iv. 300, H. B. 1588. Cystea angustata, Sm. H#. fF’, iv. 301. Cystea regia, Sm. EH. PF. iv. 302, ad partem, i. ¢., excluding the plant found on the garden-wall at Low Layton, which has not been gathered wild in Britain. Cistopteris fragilis, Mack. Fl. Hib. 341. Cystopteris fragilis, Newm. N. A. 15, F. 138, 149; Hook. and Arn. 572; Bab. 412. Cystopteris dentata, Bab. 412, and Moore, 71, excluding Dickieanum, Siin. There are many very beautiful and characteristic figures of this fern: those in Bolton’s ‘¥ilices,’ under the names of Poly- podium rheticum and P. fragile (tab. 4416), yield to none in excellence. CYSTOPTERIS FRAGILIS. 89 The little ferns constituting the present group, were com- prised under the name of Polypodium fragile by Linneus and our earlier authors ; Sprengel, Willdenow, Schkuhr, Wahlen- berg, and other eminent botanists, make them Aspidia. Bern- hardi was the first to separate them from this unmanageably extensive group, under the generic name of Cystopteris ; Roth gave them the name of Cyathea, and Smith that of Cystea, the latter being a mere alteration from Bernhardi’s prior name, because Cystopteris is “ compounded of another established ” name, Pteris, (Eng. Flor. iv. 285). The name has been altered to Cistopteris by several modern authors, an orthography at variance with the Greek derivation: in fact, there is no suffi- cient reason for altering or modifying a name that possesses the acknowledged right to adoption on account of its priority. My views having in more than one instance undergone con- siderable modification as regards the limits of species, I turned my attention to the cultivation of the beautiful little ferns I have always grouped together under the name of Cystopteris fragilis, in the hope of discovering some characters whereby the various forms might be satisfactorily distinguished from each other. Several botanists of eminence have undertaken, some- what too readily, the establishment of new species ; dwarf size, imperfect fructification, or even, in more than one instance, mere accidental deformity, having furnished the chief diagnos- tic. Now, asin Zoology we endeavour to refer the females and young, and even individuals that have undergone mutilation, to the same species as the adult male, so would I, in ferns, ra- ther refer specimens which appear in any degree imperfect to some established species, expressing a doubt if I entertained one, than separate such imperfect specimens under a new ap- pellation. In every attempt I make to establish or ascertain a species, I find it most satisfactory to dismiss entirely all such specimens, to refuse all cognizance of them, and to contrast the most perfect and most fruitful fronds only. For, as in Zoology we find specific differences most satisfactorily deve- loped in adults, so shall we also find in ferns; and if essential differences really exist, we shall be sure to see those differences more clearly when Nature has brought the objects under con- sideration to their highest state of perfection, maturity, and beauty. Entertaining these views, I have dismissed from the N 90 BRITTLE FERN. inquiry —as regards the species of Cystopteris — not only all seedling, immature, barren or monstrous fronds, but also all those which appeared to owe their peculiarities to the varied degrees of drought or moisture, elevation, protection or expo- sure, or the numerous other casualties to which so hardy yet fragile a fern is by its nature subjected ; and to compare those only which, cultivated under corresponding circumstances, had arrived at a corresponding state of maturity. The result of a very careful scrutiny of a number of plants, received through the great kindness and exertion of botanical friends, under the names of fragilis, dentata, angustata, and alpina, is, that I am unable to give my assent to the species described by Sir J. E. Smith, or to propose others for substitution in their stead. I find that differences, however striking, subside under cul- tivation; and that almost entire uniformity obtains amongst greenhouse plants, which, when found growing under varied circumstances of soil, aspect and altitude, exhibited great dis- erepancies as to size and subdivision of parts. Under these circumstances, I prefer treating them still as constituent parts of asingle species, not even naming as varieties those aber- rations from normal figure which possess no permanency. Geographical Range. This pretty and fragile, but very hardy species, has an ex- tended range in the northern temperate regions, extending to very high latitudes. In Europe it occurs in Norway, Lapland, Sweden, Russia, Denmark, Poland, France, Germany, Hun- gary, Portugal, Spain and Italy; it extends throughout Asiatic Russia into Kamtkatcha, and has been gathered on the shores of Kotzebue Sound and Eschscholtz Bay ; it is frequent in Ca- nada and the Northern States of America; it is also reported from Northern and Southern Africa, and from the Islands of the Pacific Ocean. In Great Britain it also has a wide range. ScoTLanp.— Observed more or less abundantly in every county I visited. “Enetand. — In the northern counties, Northumberland, Cumberland, Durham, Westmoreland, Lancashire and Yorkshire, it is very abundant ; so also in Derbyshire and Staffordshire, and, further south, in Gloucester- CYSTOPTERIS FRAGILIS. 91 shire, Wiltshire and Somersetshire: it has a few scattered localities in Cheshire, Shropshire, Herefordshire, Worcestershire, Warwickshire, and Devonshire; and in Nottinghamshire, Northamptonshire, Norfolk, Suffolk, Essex, Kent, Surrey, Sussex and Dorsetshire, it is said to have been found here and there on churches and in villages. Wa es.—Frequent, more especially in hilly regions, both North and South. Trevanp. — Generally a rare fern : it occurs, however, in immense pro- fusion about Sligo, and also in some parts of Kerry; and is reported from Antrim, Down, Leitrim, Wicklow, and Cork. Description. The radicles are numerous, black, and wiry: the caudex is elongated horizontally but very slowly, the extremity always having a vertical position, and terminating in a crown of unex- panded fronds. The fronds begin to unfold early in the spring, and appear very evanescent, generally arriving at maturity in a few weeks; a constant succession of fronds is produced throughout the summer and autumn, but all disappear with the first frosts of winter. The general form of the frond is lanceo- late and pinnate: the pinne are also pinnate; but beyond this they appear to possess no character in common. The length of the stipes is very various. The lateral veins are alternate, and each is usually divided into three or four branches, one extending to every serrature in each lobe of the pinnule. The lower detached figure in the cut at page 87, represents a pin- nule, showing the veins and points of attachment of the cap- sules ; the figure immediately above it represents a lobe of the same pinnule: almost every vein bears a cluster of capsules near its extremity; the cluster is nearly circular, and has a loose, white, membranous involucre, attached on one side only, beneath the capsules; its margin, at the farthest extremity from its attachment, is striated, and becomes split into capil- lary segments, or sometimes torn in a ragged manner, and at length entirely disappears: the clusters of capsules rapidly in- crease in size, frequently becoming confluent, as represented at page 87, where the apex of a frond, with confluent clusters, is shown towards the upper right hand of the cut. In cultivation, I 92 BRITTLE PERN. have observed that sometimes, from the plant receiving a check from exposure or improper treatment, the masses remain of small size, and covered with the involucre, even after the frond has withered. What I have already written under the head of Synonymes &e., precludes the necessity of observations on varieties; I will, however, mention, that the late Samuel Gibson, of Hebden Bridge, obligingly gave me a number of pretty and diminutive fronds, which he gathered at Burnley, near Colne, in Lanca- shire ; five of these are represented below. CYSTOPTERIS DICKIEANA. 93 XP ay" q e (x Of hh Bs WAY LENG yh \ : b WG pA ios \" ge ! vee ons TE Ne Fe a iv Fe Gp brf{ > A PAE ~ A WT ne H/F f Cl . he i R Ny ag ming i ey ge f re SO) ee nha MNS D aaeite lh Ki AHING ao ‘i } DICKIE’S FERN, (natural size). Characters, Genus.—CysToPTERIS, (see page 87). Species.—Dicureana. Caudex elongated horizontally, but very slowly, its elongation due solely to the successive develop- ment and decay of fronds: stipes very much shorter than the frond: frond erect, rigid, lanceolate, pinnate: pinne deflexed, broad, overlapping, crowded, subopposite, pinnatifid: clusters of capsules submarginal, very distinct: involucre generally want- ing ; seeds verrucate : colour bright somewhat glossy green. 94 DICKIE’S FERN. Spnonymes, Figures, Ke. Cystopteris Dickieana, Sim, Gard. Journ. p. 808; Newm. Phytol. App. xxvi. Mr. Babington makes a second species of Cystopteris, under the name of dentata, and places Dickieana as a variety thereof; (Man. 412). Sir W. J. Hooker gives dentata as a variety of fragilis, and angustata of Smith as a mere synonyme of that variety ; he makes no mention of Dickieana: (Sp. Fil. i. 198). Mr. Watson heads his first species of Cystopteris thus : — “1879. Cystopteris fragilis, Bernh. 1879, b. Cystopteris dentata, Hook. 1379, c. Cystopteris angustata, “Sm. Cystopteris Dickieana (Sim.) New.” Mr. W. correctly adding, “ opinions differ much as to whether one species only, or several species are included under the above quoted names:” (Cyb. Brit. 11. 258). The authors of the ‘ London Catalogue’ give b. dentata as a variety of fragilis, and do not mention Dickieana or angustata. Lastly, Mr. Moore says, ‘‘I am inclined to think C. dentata to be suffi- ciently distinct to take rank as a species, and to look upon C. Dickieana as an extreme form of it;” (p. 77): but he gives only two species of Cystopteris, fragilis and montana; thus appearing, in the same breath, to express and renounce an opinion. My own judgment, improved, but by no means ma- tured, by the observations of sixteen years, regards dentata as a nonentity, angustata as a synonyme of that nonentity, and Dickieana as a possible, but by no means established, species. cographical Range. Scortanp.—This fern is known to botanists from a single locality only, a sea cave near Aberdeen, where it was found by Dy. Dickie, who has Kindly supplied me with wild specimens. The three large fronds repre- sented at page 93 are from this station, and not from a cultivated root. CYSTOPTERIS DICKIEANA. 95 Description. The radicles are tough, numerous, and nearly black: the caudex is tufted, exhibiting very conspicuously a pale brown salient crown, composed of the future fronds: the stipes is short, scarcely half as long as the frond: the frond is ovate- lanceolate, pinnate, compact, somewhat glabrous, and of a full bright green colour: the pinnw are crowded, deflexed, broad, blunt, and pinnatifid; they are set on at an acute angle with the plane of the rachis: the pinnules or lobes are crenate : the fructification abundant: the clusters of capsules small, round, submarginal, and generally naked: the involucre, when pre- sent, is small, its margin fringed, its attachment beneath that of the capsules: the seeds verrucate. Since, with the single exception of Mr. Sim, the original describer, no author has ventured to regard C. Dickieana as @ species distinct from C. fragilis, a few words appear abso- lutely necessary as to the propriety or otherwise of regarding this fern as distinct. The objections to separating it are two : — first, the present restriction of the species to a single loca- lity, and that a very peculiar one; and, secondly, the absence of any obvious botanical character whereby it may be distin- guished from C. fragilis. Both of these objections are my own; they are difficulties first suggested by myself, and therefore I am fully prepared to assert their importance, and shall make no attempt whatever to reason them away. The propriety of separating Dickieana from fragilis rests on these grounds : — It is a healthy perfect plant, not monstrous or distorted, and it produces its like from seed for many generations. It is re- produced freely from seed, becoming a perfect weed; whereas fragilis, under similar treatment, rarely reproduces itself. Cul- tivated in the same soil, and in the same pot, with fragilis, the latter becomes larger and more vigorous, Dickieana smaller and less vigorous: and the more care the cultivator bestows on these two plants, the more will he find they recede from each other ; whereas all differences between the so-called C. fragilis, angustata, and dentata are speedily lost in cultivation. It is true that Dickieana, under cultivation, undergoes some change: its pinnee are deflexed, crowded, and partially overlapping in a 96 DICKI£’S FERN. wild state ; they become more deflexed, crowded, and overlap- ping under cultivation: the pinne of fragilis are generally as- cending, separate and distinct in a wild state, and they become more ascending, distant and divided under cultivation: Dickie- ana is of a bright glossy green in a wild state, and fragilis of a dull somewhat glaucous green; this difference of colour is not only maintained but increased under cultivation : finally, and this is a botanical diagnostic, Mr. Wollaston assures me that the seeds of fragilis are always echinate, those of Dickie- ana simply verrucate. The reader is requested to try the plant by these tests, and if they fail, the species fails also. Culture. These little ferns grow freely and luxuriantly in the usual soil of gardens in the counties where they are indigenous, requiring only shade and moisture: on the north side of loose stone walls, provided purposely, fragilis seems especially to flourish. In pots it appears still more at home, if they stand in acool and well-ventilated greenhouse, and the soil composed chiefly of peat, with a small portion of thoroughly decayed leaf-mould and fine sand: the caudex to be fixed in an erect position between stones, as recommended for the Woodsias. Wr. Wol- laston, whose judgment in all such matters is most excellent, recommends the addition of loam. The pots should stand in water, half an inch deep; and the reader must recollect, when- ever this is recommended, that it is indispensable that there be lumps of charcoal at the bottom of the pot: this corrects the tendency to impurity which water, when still, is so apt to exhibit. Dickieana, like fragilis, is remarkably easy of culture, but, like all other sea-side ferns, enjoys the protection afforded by glass. CYSTOPLERIS MYRRHIDIFOLIUM. 97 WILSON'S FERN, (natural size). Characters, Genus.—CysTopTERis, (see page 87). Species. — Myrruipirotium. Caudex a stolon-like creeping rhizome: stipes erect, longer than the frond: frond deltoid, pinnate : the lowest pair of pinne nearly opposite, shortly sti- pitate, each almost equal in size to the apical portion of the frond; all the pinne once, the lower pair twice pinnate: an obtuse angle is formed at the union of the first pair of pinne with the stipes and rachis: clusters of capsules circular, and, when the frond is immature, generally accompanied by an ob- scure torn involucre, which is attached to the dorsal surface of the capsuliferous vein immediately behind the point of at- tachment of the capsules. Oo 98 WILSON’S FERN. Spynonymes, Figures, &e. Polypodium Myrrhidifolium, Vill. Hist. Plant. Dauph. iii. 851, t. 58. Polypodium montanum, Allioni, Pedem. No. 2410; Lam. Fil. Fr. i: 28. Aspidium montanum, Swartz, in Schrad. Journ. ii. 42, Syn. Fil. 61; Willd. Sp. Pl. v. 286; Schkuhr, p. 61, t. 63; Hoffm. Fl. Germ. ii. 10; DC. et Lam. Fl. Fr. ii. 558 ; Sadler, 48. Cyathea montana, Smith, Mem. Acad. Turin, v. 40; Roth, Fl. Germ. iii. 100. Cystopteris montana, Link, Hort. Berol. ii. 131; Koch, Syn. 981; Presl, Tent. Pterid. 98; Fries, Summa, 82; Newm. Phytol. i. 671, N. A. 15, F.18 & 159, Phytol. App. xxv. ; Hook. and Arn. 572; Bab. 418; Moore, 80; Ledeb. Fl. Ross. xiv. 517; Godet, Flore du Jura, 856. I think the name of Polypodium montanum was conferred on this plant against all the rules of botanical nomenclature, Vogel having given that name to another species eight years previously ; and in the present unsettled state of fern-nomen- clature, it seems far from improbable that both species will be again included in one genus, as they were in the time of Allioni. As they were then both called Polypodium montanum, so they must, with those who retain Bory’s genus Lastrea in its entirety, both be Lastrea montana. Moreover, Villars’s name of Myr- rhidifolium, having the claim of priority, relieves us of all diffi- culty on the score of its adoption. With regard to the genus, I have no doubt that those who have seen this beautiful little fern on its native hills, or have successfully cultivated it, will readily agree that its affinities are with Dryopteris and Rober- tianum, rather than with fragilis: the stolon-like rhizome, the triangular frond, the elbowed rachis, and the generally naked clusters of capsules, all show the necessity for its eventual re- moval from the genus with the species of which it has hitherto been associated. The original figure of this fern in Villars’s ‘Histoire des Plantes de Dauphiné’ (tab. 53), well represents its form and characteristics ; that in Schkuhr (tab. 63) is also excellent, leaving nothing to be desired. CYSTOPTERIS MYRRHIDIFOLIUM. 99 Geographical Range. The geographical range of this fern is very extensive. It is found in Norway, Sweden, Germany, France, Italy, Spain, and Hungary; indeed, Sadler (De Fil. Ver. 55) says that it occurs in all the Provinces (sic) of Europe except Britain. I do not trace it in Asia, except in Kamtkatcha, of which peninsula it is a native, according to Mertens, Ruprecht, and Ledebour. It is abundant on the Rocky Mountains of North America, and has also been reported from the Andes of South America: from the former locality I have seen specimens, through the kindness of Mr. Smith ; the latter locality requires confirmation. In Great Britain the range of this fern is more restricted than that of any other species, being confined, as far as we yet know, to one county in Scotland. I had the pleasure of first introducing this fern to the notice of British botanists in 1844, and give below all the information published respecting it from that time to the present, including the first announcement. But, it should be added, that our excursions into Scotland are generally of such short duration, that the fact of its ascer- tained range being so restricted, appears more the result of this circumstance, than of its absolute scarcity. Scortanp.—* I found this fern on Ben Lawers (in Forfarshire), while botanizing in company with Professors Hooker and Graham, in August, 1836. I do not think it probable it could have been introduced by acci- dent, much less by design. It grows in a part where Saxifraga rivularis is or was occasionally found, but so rarely that I never saw it but once, when Sir W. J. Hooker pointed out a starved and scarcely intelligible plant ; the scarcity therefore of the fern is no argument against its being truly indige- nous. I gathered all the fronds I saw, but left the root, and think that T could find it again."—Mr. Wilson in a letter to myself, see Phytol. i. 671. “ Corrach-Uachdar, July, 1841: Messrs. W. Gourlie and W. Adamson.” —Hook. & Arm. 572. ‘TI have observed the notice respecting Cystopteris montana on the wrapper of the ‘ Phytologist’ for November last. I had the pleasure of gathering the plant in August last, in Breadalbane, not in Mr. Wilson’s place in Ben Lawers, which has not, I believe, been redis- covered, but in the range of mountains between Glen Dochart and Glen Lochay, where Messrs. Gourlie and Adamson found it in 1841. From these gentlemen Dr. Arnott obtained a direction to the spot, and kindly 100 WILSON’S FERN. accompanied me thither. The station is recorded in the sixth edition of the ‘ British Flora,’ under the name of Corrach-Uachdar, but a native of the neighbourhood called the mountains Meal Oufillach, and the ravine Corrach Dh’ Oufillach, as nearly as I could express his pronunciation. He could not spell the words.” — Mr. Borrer, in Phytol. iv. 7.“ Previously to my setting off for Scotland on the Ist of this month, August, 1853, I was not able to get any information respecting the locality for Cystopteris montana, more than I obtained from the pages of the ‘ Phytologist ;’ and when arrived within the district, in reply to my inquiries respecting Cor- rach Uachdar or D’Oufillach, no one that I met with had ever heard of such names, though I took great pains in making clear what ought to be its situ- ation, and the way in which the names were spelled, not trusting to my pronunciation. Such being the case, I was obliged to trust to myself, and search diligently, and had the pleasure of discovering a locality for the said fern, which I suppose is the third in which it has been found in Scotland ; it is not Mr. Borrer’s station, directions for which I have since received, but may be six or eight miles distant from it. I found only one frond in fruit.”—Mr. Westcombe in Phytol. iv. 1098. From the Rev. Mr. Little, who has also been successful in finding Myrrdidifolium in Scotland, I Jearn that the geological formation on which it occurs is mica-schist. (Wates.—Caernarvonshire :—‘‘ Cystopteris montana, recently described in the ‘Phytologist’ as a newly discovered British plant, is stated by Spren- gel to have been found in Wales by Plukenet, who figured it in his ‘ Phy- tographia,’ tab. $9, f. 4, but I have not seen the figure.” — Mr, H. O. Stephens, in Phytol. i. 875. Mr. Watson having noticed this suggestion (Cyb. Brit. ii. 259), it seems desirable to examine it. On reference to Plu- kenet, I found that accurate botanist and phytographer giving Ray as his authority in the present instance, and referring the reader to Ray’s ‘ Synop- sis, p. 27. Here is the passage: — ‘‘ Filix montana ramosa minor arguté denticulata. Small branched mountain fern with finely indented leaves. Ad summitatem montis Glyder qua lacui Llyn Ogwan imminet. D. Lloyd. Singulare quid in hac specie esse videtur quéd in alis sui ramulis infimis surculi ad als costam inferiorcs oppositis longiores sunt, prasertim scapo proximi notabili differentia.” On this I may remark :—1. That the plant in question was found in Wales by Lloyd, not by Plukenet. 2. That the record is Ray’s. 3. That the similarity of specific name is merely acci- dental, although Sprengel’s record is based thereon. 4. That the character described by Ray is common to all the Lophodiums hereinafter to be de- scribed. And, 5. That Plukenet's figure faithfully and beautifully repre- sents a small frond of Lophodium Fornisecii, precisely similar to some lately gathered in North Wales by Mr. G. Maw, and kindly submitted to my inspection). CYSTOPTERIS MYRRHIDIFOLIUM. 101 Description. The radicles are fibrous, black, and clothed with fibrille: the caudex is a brown stolon-like rhizome, which, when creep- ing among moss in wet situations, especially on the ledges of dripping rocks in mountain ravines, is almost constantly wet. I am indebted to Mr. Westcombe for a portion of rhizome in a living state, and have been successful in growing it in the me- thod hereinafter described. From the rhizome the fronds rise at irregular distances, each on a slender erect stipes, which is somewhat longer than the frond, and has a few nearly diapha- nous pointed scales scattered near the base, where it is brown, the upper portion being green and concolorous with the frond : the frond is nearly horizontal, being elbowed at its junction with the stipes; it is triangular in form, and pinnate ; the first or lowest pair of pinne being nearly opposite, and very much larger than any of the others, indeed, nearly equalling in size all the rest: these pinne are pinnate, the pinnules are also pinnate ; the lobes are deeply pinnatifid, and their divisions notched: it is, therefore, one of the most compound of our ferns: the second pair of pinne are nearly opposite, but the remainder gradually become alternate. The first inferior pin- nule of the lowest pair is very much larger and more divided than the first superior pinnule of the same pair; this dispro- portion decreases gradually, until, at the apex of the pinna, its opposite pinnules nearly correspond in size. All the specimens found by Mr. Wilson, and all but one of those found by Mr. Westcombe, were without fruit; but this is an evident depar- ture from the usual character of the fern, the entire under sur- face being commonly covered with clusters of capsules. The late lamented Mr. E.. Forster very kindly lent me, for the pre- sent work, a Swiss specimen, just in that state of incipient fructification which best displays the involucre. The lateral veins are alternate; each generally ceases in a sinus between two serratures: the involucre is attached at the back of each lateral vein, and bends slightly forwards over the capsules; it is very unequal in size, and often entirely wanting ; its free ante- rior margin is jagged and uneven. The masses of capsules are nearly circular, and become very prominent when mature ; 102 WILSON’S FERN. although crowded, each appears to retain its individuality, and they never seem to become perfectly confluent. Culture. A small quantity of Sphagnum and charcoal should be spread over the bottom of a common seed-pan: this should be covered to the depth of two inches with a mixture of thin la- mine of freestone or mica-schist, sandy peat, clean sand, and thoroughly decayed leaf-mould ; the last in small quantities : arrange the rhizome on this, and cover it with more of the mixture: place the pan in a cool greenhouse, out of the reach of sunshine. In summer, while the fronds continue to be de- veloped, cover the pan with a bell glass, in order to secure a moist atmosphere ; but before winter, remove the glass and ex- pose the plant to the weather, watering it daily, except during frost and snow. The Rev. W. Little finds this fern grow freely in the open air in Dumfriesshire. POLYSTICHUM LONCHITIS, 103 HOLLY FERN, (natural size). Characters, Genus.— Ponysticaum. Midvein of pinnule or ultimate division distinct ; lateral veins branched: clusters of capsules seated on the anterior branch, covered by a circular, scale-like, 104 HOLLY FERN. peltate involucre, which is attached by its centre and is free at its circumference: first superior pinnule greatly larger than the second, and evidently larger than the corresponding inferior pinnule: all the ultimate divisions of the frond end in acute rigid spines: caudex woody, erect, long-enduring, and termi- nating in a corona of fronds. Species. — Loncuiris. Caudex tufted: frond almost estipi- tate, linear, rigid, leathery, glabrous: pinne entire, auricled at the base, crowded, overlapping, set on at an angle with the plane of the rachis, serrated, serratures spined: clusters of capsules circular, crowded, often confluent, confined to the upper parts of the frond. Spnowpnies, Higuees, &e. Polypodium Lonchitis, Linn. Sp. Pl. 1548; Lightf. Fl. Scot. 668; Huds. Fl. Ang. 455; With. Arr. 773; Sm. EL. B. 797. Polipodium Lonchitis, Bolt. Fil. Brit. 34, t. 19. Aspidium Lonchitis (Swartz), Sm. EH, F. iv. 284; Mack. Fl. Hib. 838; Franc. 82; Hook. and Arn. 568. Polystichum Lonchitis (Roth), Newm. N. A. 25, F168, Phyt. App. xvi.; Bab. 411; Moore, 83. This rare fern appears to have been very familiar to our older botanists and herbalists, both here and on the continent of Europe: it is mentioned by the Bauhins, Gerarde, Parkin- son, Ray, and the anonymous author of the ‘ British Herbal,’ and has repeatedly been figured in a very characteristic man- ner. All authors seem agreed on the specific name: the gene- ric name is not so universally adopted; but the species Lon- chitis being the type of the genus Polystichum, and that name being anterior to the conflicting one of Aspidium, there is little doubt it will be eventually received, more especially as modern pteridologists are agreed in restricting the genus Aspidium to the three species placed as typical by its author, and such other subsequently discovered species as agree therewith in essential characters. The genus Aspidium, as instituted by Swartz, and as restricted by Presl, contains Sp. 1, trifoliatum; Sp. 2, ma- crophyllum ; and Sp. 3, Heralceifolium. VPOLYSTICHUM LONCHITIS. 105 Geographical Range. It seems desirable, under this head, to express a doubt as to whether the fern known by this name on the continent is pre- cisely identical with our British plant. The specimen in the Linnean herbarium rather resembles a seedling of the following than a mature plant of the present species; and the habitat given by European botanists does not quite correspond with those in which it occurs in Britain: it is said to grow in the “bois montagneux ” of France, in the “ sylvis montosis subal- pinis” of Lower Germany, in the “ umbrosis alpestribus ” of Transylvania, in the “forets” of the Jura, and go forth; the in- ference being that it is a sylvan rather than a rupestral plant. The name of the fern occurs in the Floras for Lapland, Swe- den, Denmark, Germany, Hungary, France, Switzerland, Italy, and Russia; it also appears to oceur throughout Asiatic Russia, even including Kamtkatcha; and it is said to be a native of North America: Sadler states it has not been found in Spain. In Britain it is a rare fern, being confined tv bleak and ex- posed mountains: its chief localities are as under : — In Scotranp it has been found and recorded in no Jess than nine coun- ties, by botanists whose knowledge of the plant cannot be questioned : these are Sutherland, Ross, Inverness, Moray, Aberdeen, Forfar, Perth, Argyle, and Dumbarton: the chief stations are Ben More, in Sutherlandshire ; Ben Lawers and Craig Challiach in Perthshire ; the Clova Mountains, Glen Fiadh, and Craig Maid in Forfarshire. I have to acknowledge the kindness of Drs. Greville and Balfour, and Mr. Kippist, in supplying me with Scotch specimens, and my obligations to Messrs. Backhouse, Garden- er, Gourlie, Stables, Watson, and Westcombe, for information as regards localities, &c. It is next to impossible to look at a map of Scotland, and observe how large a space is occupied by the nine counties enumerated above, without regarding it as a widely distributed fern in that kingdom. Lanark and Orkney have been added, but Mr. Watson (Cyb. Brit. iii, 261) does not seem inclined to accept the authority as satisfactory. In Encwanp, its discovered habitats are almost confined to the single county of York: I am indebted to Mr. Tatham for specimens from the neighbourhood of Settle; to Mr. Thompson, for others from Attermire Scar; and IJ have seen others gathered on Ingleborough. Mr. Backhouse, and many other botanists, have seen it growing in great luxuriance on Fal- con Clints, in Teesdale, just where the basalt joins the limestone. This P 106 HOLLY FERN. locality is ten miles west of Middleton, and on the Durham side of the stream, although immediately adjoining the county of York. In Watzs I believe it has been discovered in one county only, and here it has been known ever since the time of Ray, who described the habitat in these words :—‘ E rupium fissuris emergit in summis jugis Arvonie v. g. Clogwyn y Garnedh y Grib Goch Tryguylchau, D. Lloyd.” In this sta- tion it has been since recorded by Bolton; and Hudson says it is plentiful on the mountains sbove Llanberis, which probably means the Clogwyn y Garnedh station, and this station, as well as Cwm Idwell, have frequently been recorded by living botanists. The Rev. Mr. Pinder, who found it on Snowdon, as well as on Glyder Vawr, and at both places in fructification, observes that the plants are more lax in their habit than those from Scot- land; and my own experience quite confirms this observation. I was suc- cessful in finding the plant in several localities near the upper extremity of Twll dha, that remarkable fissure which opens into Cwm Idwell, and which, the tradition of the neighbourhood asserts, was rent at the crucifixion of our Saviour, a tradition to which few educated men will be inclined to listen. It grows, not only at the immediate upper entrance of the fissure, but also on the right, near the spot where Anthericum serotinum is found; a dan- gerous locality, by the way, and one which requires the botanist to possess a firm foot and a cool head. Again repassing the upper entrance of the fis- sure, and descending towards Llyn Idwell by the precipitous and somewhat instable surface of the rock, P. Lonchitis occurs sparingly among thou- sands of plants of P. aculeatum of every form that can be imagined. In this natural botanical garden, large plants of a mountain Thalictrum form prominent and striking objects. Mr. G. Maw has lately shown me a fine specimen of this fern from the Snowdon district. In Trezanp, Polystichum Louchitis is a rare fern, but occurs in a few localities, of a very rigid, erect, and characteristic form. Mr. David Moore, of the Glasnevin Botanic Garden, at Dublin, a botanist to whom JI am in- debted for much valuable information, has found it in the Rosses and Tha- net Passes in the county Donegal. Dr. Mackay, of the College Botanic Garden, at Dublin, another Irish botanist to whom my best thanks are due, found it on the Ben Bulben meuntains, in the county Sligo, in 1833, and remarks that it had been previously found there by Mr. E. Murphy: and Mr. W. Wilson, Mr. 8. P. Woodward, Mr. Ward, and a number of other botanists, have found it on Brandon Hill, in the county Kerry: to Mr. Woodward I am indebted for specimens from this locality; and to Mr. Ward for the sight of others, truly curious from the size and solidity of their caudices, which have probably weathered the mountain storms for hundreds of years: the basal portion of each frond still remains in situ, and the solid caudex, of which they form an integral part, forcibly reminds one of the more erect and elongate stem of a tropical tree-fern. POLYSTICHUM LONCHITIS. 107 Description. The radicles are long, strong, black, and wiry: the caudex is woody, erect, or recum- bent through age, and long-enduring, its upper extremity a brown, chaffy, but not very ¢ ~€ — salient crown, composed of the undeve- . loped fronds: the stipes is very short, \ scarcely separable from the rachis, fe, and clothed with reddish, chaffy " scales : the frond is linear, pinnate : n “s pinne crowded, overlapping, some- = \\ what crescent-shaped, auricled on ' = the upper side, next the stem, ser- “tee ,, rated and acutely spined ; each pin- - { na is sessile, but not decurrent, set fon obliquely with the rachis, and < twisted, a character I have attempted co to represent at page 103; this twist- vk ed character is least apparent in the oe Welch specimens, which have also a y more lax habit than the Scotch and Me Irish plants; the Welch specimens, es moreover, are generally pendulous, a the Scotch and Irish ones more usu- ies ally erect; there is also a difference in the colour, that of the English On and Welch specimens approaching id the ordinary hue of P. aculeatum, while that of the Scotch and Irish specimens is full, rich, shining green, 108 HOLLY FERN. the substance thick and leathery, and the entire frond as rigid and prickly as a spike of miniature holly-leaves, so much so, indeed, that the fronds are not to be flattened for the herbarium without considerable difficulty. The lateral veins are alter- nate and generally three-branched, the anterior branch usually terminating half way between the midvein and margin, the others reaching the margin, but being quite free at their extremity. It should, however, be observed, that the auricle or lobe at the base of each pinna has a formula of vena- tion decidedly different from the remainder of the pinnule, since the principal vein in this lobe emits several fruitful branches in an opposite direction to that taken by the rest. The involucre is cir- cular, and attached to the back of each anterior branch of the lateral velns near its extremity; the at- tachment is by a short central cord: the capsules are attached to the vein around the base of the cord of the involucre, and, as they reach maturity, form a circular cluster, and these clusters a con- tinuous line on each side of the pinna, about equidistant from its midrib and margin. Some speci- mens are so densely seeded that the masses become confluent. In the Irish, as in all other speci- mens, the clusters of capsules are most abundant towards the apex of the frond, but they are also scattered throughout the other parts, even to its base; whereas in the Scotch, Welch, and particularly the English specimens, the masses are confined to the upper part of the frond. Mr. Tatham, in allusion to these observations, remarks that in the POLYSTICHUM LONCHITIS. 109 Settle plant “the seed is generally confined to about a third of the frond, but I have some that are half covered.” The fronds represented at page 108, are from Scotland; those at page 107 from Wales: figure b shows the venation, and the points whence the clusters of capsules have been removed ; figure c, represents a pinna with the fructification in a very young state, the peltate involucre alone being visible ; figure d, another pinna, in which the clusters of capsules have enlarged, and more or less concealed the involucre: the figures at page 108 are from an Irish plant. Culture. A difficult plant to establish, and even when apparently established, often disappointing the cultivator. Still, nothing can exceed the vigour which it displays when grown in the open air in some parts of Ireland, perhaps, indeed, throughout Ire- land; but I may speak of Belfast and Dublin, as places in which I have particularly observed it: on rock-work in the sister island it forms strong permanent masses, often displaying fifty fronds at once. In Scotland and the North of England, I have had little experience of the success attending its cultiva- tion in the open air; but in the South of England it rarely thrives: when potted, and kept in a cold frame or cool green- house, it succeeds better. The following directions may possi- bly be of some service to those who incline to encounter the trouble and reap the reward of pot-culture. Place the caudex erect between two flattish pieces of sandstone or freestone, and then block up the space between them and the sides of the pot with other pieces of stone: do this tightly, compressing the caudex, keeping its crown well above the pot, and allowing the roots to hang down; then fill up with a light mixture of peat and sandy loam, and shake it gently down until the interstices of the stone are thoroughly filled. In watering this fern, it is best to keep the water entirely from the leaves, unless, by tho- rough ventilation, you can ensure rapid evaporation. 110 HOLLY FERN. I have more than once mentioned Cwm Idwell as a station for ferns: below is a very humble attempt to give an idea of this wild spot. It was sketched in a memorandum-book, and carried on my back among fern-fronds for many a weary mile. Cwm Idwell is a vast semicircular rampart of rock, near the middle of which, invisible at a distance, is the perpendicular fissure called Twll dha: through this falls a mountain stream, which, emerging at the foot, wanders, amongst fragments of disrupted rock, into Llyn Idwell, — that dark, still lake which reposes in the natural basin; issuing thence, it joins the waste water of Llyn Ogwen, and the united stream flows through the mighty pass of Nant Frangon to the sea. In Llyn Idwell grow Isoetes, Subularia, and Lobelia: on the broken ground about the lake, Lycopodium alpinum, L. Selago, L. selaginoi- des, and L. clavatum, every conceivable form of Cystopteris fragilis, with Allosorus crispus, and Hymenophyllum unila- terale : a little higher up, Polystichum Lonchitis, Asplenium viride, Rhodiola rosea, an alpine Thalictrum, and, that rarity of rarities, Anthericum serotinum: and, still higher, above and beyond the summits that we see, Woodsia Ilvensis and Lyco- podium annotinum. Oh! it is a matchless place for a botanical ramble ! POLYSTICHUM ACULEATUM. 111 a Eee TS ata Oe a PRICKLY FERN, (one-sixteenth the natural size). Characters, Genus.—Potysticuum, (see page 108). Species.—AcuLEatum. Caudex tufted: stipes short, densely chaffy: frond linear, rigid, leathery, glabrous, bipinnate: pinne pinnate or pinnatifid: pinnules distinct (aculeatum, Sm.) or de- current (lobatum, Sm.), serrate; serratures spinose: clusters of capsules circular, crowded, often confluent, confined to the upper part of the frond. Spnonymes, Fiquees, &e. Polypodium aculeatum, Linn. Sp. Pl. 1552. Polypodium lobatum, “affinis precedenti [P. angulare, inf.] an distincta sit species?” Huds. Fl. Ang. £59; With. Bot. Arr. Veg. 651. 112 PRICKLY FERN. Polipodium aculeatum, Bolt. Fil. Brit. 48, t. 26. “ Polipo- dium lobatum, Hall. Hist. 1712, and Fl. Ang. 459, is doubtless a young plant of Polipodium aculeatum ; of this I am certain from observation.’ —Bolt. 1. ¢. Aspidium lobatum, (Swartz), Sm. HE. F. iv. 291; Mack. Fl. Hib. 838. Polystichum aculeatum, (Roth), Newm. N. A. 25, F. 169; Bab. 411. The division of the bipinnate aculeate ferns into three spe- cies, in all probability originated in a mere error of nomencla- ture. IT arrive at this conclusion from a careful consideration of the original descriptions. Linneus considered the plants referrible to a single species, to which he gave the name of “aculeatum.”’ Hudson, observing the great discrepancy be- tween the extreme forms, divided them into two species, calling the rigid and least divided form ‘“‘lobatum,” and the lax and most divided form “aculeatum.” Kunze adopted these names; but Willdenow redescribed the species, transferring the name aculeatum to Hudson’s lobatum, and giving the new name of “aneulare” to Hudson’s aculeatum, a transposition that will be rendered clear by the following formula : — Lobatum, Huds. et Kunze Aculeatum, Hitds. et Kunze } = Aculeatum, Willd. = Aculeatum, Linn. } = Angulare, Willd. Thus the three names were not intended to represent three objects, a conclusion inadvertently adopted by Sir J. E. Smith, who consequently endeavoured to find characters for all three. There is now a growing disposition to reunite them as one species. DeCandolle in France, Godet in Switzerland, Weber and Mohr in Germany, Ledebour in Russia, and other bota- nists of unquestioned ability, peremptorily discard the idea of a second species; and Bernhardi, going still further, consi- ders them to be divided forms of Lonchitis. These opinions, however, are not so general as to preclude the necessity for my describing the extreme forms, leaving it, however, to be understood, that the observations on geographical range treat aculeatum and angulare as a single species. From a some- what voluminous correspondence with British botanists, on the subject of this fern and the next, I find there is a very POLYSTICHUM ACULEATUM. 11 general desire to maintain two species — aculeatum and angu- lare—as distinct, but to omit the third or intermediate species. The characters recommended by my correspondents are very various, and would divide a series in a variety of ways; hence I feel reluctant to publish them. In the edition of 1844, about eight pages are occupied with quoted descriptions of these ferns, more especially from the writings of Sir J. E. Smith, Sir W. J. Hooker, Mr. Babington, and Mr. Thwaites; but on revising these for republication, and studying them with the careful attention which the writings of these botanists always deserve, I found that no impression whatever remained on my mind as to the distinctness or other- wise of the ferns: the ideas suggested were theoretical, and rather psychical than physical; speculations on the writers, rather than on the objects concerning which they wrote. I must also observe that Professor Kunze, one of the highest authorities on the species of ferns, published in the ‘ Flora’ of June 14, 1848, an essay on this very subject. It was intituled, “On three species of Ferns hitherto involved in much confu- sion, Aspidium lobatum, Sm., A. aculeatum, Sim., and A. Braunii, Spenn.” An abstract of this essay appeared in the ‘Phytologist ’ (Phytol. iii. 455), and a translation in extenso was published in the 1st and 2nd Nos. of the ‘ Botanical Gazette,’ but I believe all botanists consider the confusion to be rather increased than diminished by these well-intended labours. If, therefore, one of the greatest pteridologists has failed in eluci- dating the matter, it seems scarcely probable that any efforts of a general botanist will accomplish that desirable object. Geographical Aange. The European range of this fern extends to every country ex- cept Spain, where one would rather suppose it unobserved than absent, since it occurs commonly throughout France, especially in the South, and ascends the Pyrenees to the height of 2,500 feet. Itis found in Asia, Northern and Southern Africa, and North America: in the latter country it is extremely rare, but perfectly identical with our British plant. 114 PRICKLY FERN. In one or other of its forms this fern seems to be distributed throughout the United Kingdom. I have seen it more or less abundantly in every county I have visited, whether in England, Wales, Scotland, or Ireland; and the lists I have received through the kindness of my correspondents, invariably record its occurrence. It seems to delight in the protection of man, its favourite locality being our hedge-rows ; and its luxuriance being greatly increased by cultivation, or even by proximity to cultivated lands: its occurrence on our moors, commons, and mountains, is comparatively rare, its stature diminutive, and its fronds are more sparingly divided. Description. The radicles are unusually long, strong, and tough, often taking so firm a hold of the soil, especially when the plant is growing in hedge-banks, among the roots of whitethorn or hazel, as to require great labour in removing. The caudex is very large, apparently increasing slowly with age, and enduring for many years. The young fronds make their appearance in Apvil, the circinate apex being bent backwards, and remarkably graceful in its appearance: the pinne of the young frond are also circinate: I have attempted, in the vignette at page 116, to give an idea of this character. The fronds attain their full expansion in July, and the seed appears to have reached maturity in September: the fronds are tough, leathery, and perfectly persistent, retaining their green uninjured by frosts throughout the year, and showing no disposition to decay until the fronds of the succeeding year are fully developed ; indeed, they are of so rigid and durable a character, that after changing their green hue for one of brown, they remain almost unaltered in form; and thus Nature often preserves the foliage of three or four successive years attached to the same caudex, display- ing to the inquiring gaze of the botanist a variation in charac- ter that will often strike him with astonishment. The form of the frond may be termed lanceolate, but it becomes more or less linear, and more or less attenuated towards the base. The stipes is usually very short, and is densely clothed with reddish scales ; these are very large and crowded at its junction with POLYSTICHUM ACULEATUM. 115 the caudex, but upwards they diminish in size, and are much smaller when the stipes has merged ina rachis. The caudex has always a disposition to fix itself on a perpendicular surface, whence the fronds issue in a nearly horizontal direction, their rigid habit almost precluding the possibility of their assuming that graceful bend which is more or less observable in every other fern similarly situated. The frond is variously divided, but always pinnate: the pinne also are variously divided : when entire, as is usually the case in immature plants (see figs. aaa, page 111), the fronds resemble those of the preceding species, P. Lonchitis, from which circumstance the name of Lonchitidoides has been applied to this form. When the first upper pinnule is separated from the body of the pinna, which remains nearly entire (figs. bb), the plant is the Aspidium mu- nitum of the continent; at least, such is the opinion I gather from the descriptions of Sadler and others: when the pinna is a little more divided (figs. ¢ ¢ c), I suppose it to be the Polypo- dium lobatum of Hudson, and P. aculeatum of Linneus; and, lastly, when the pinnule becomes quite pinnate at the base, and even beyond the middle (fig. d), it is probably the Aspidium aculeatum of Smith. I believe that no one who has watched the plant with careful attention, has ever supposed these forms to be more than varieties of a single species. The first upper pinnule on each pinna is much larger than either of the others, indeed, it is usually twice as large as the first lower pinnule; it points directly upwards towards the apex of the frond, but owing to a certain convexity, which every division of the frond in some degree possesses, its point is bent downwards, and very frequently passes below and beyond the midrib of the pre- ceding pinna; the double series of these enlarged pinnules, often amounting to more than twenty, has a very striking ap- pearance: all the pinnules have a sharp spine at their extre- mity, and several lesser spines at their edges, and each of the enlarged superior pinnules is slightly auricled at its outer mar- gin near the base, and the auricle, in those pinnules near the base of the frond, has a very strong and distinct spine; this character extends to several of the other pinnules which most nearly approach the stem, and these are generally placed on short foot-stalks, whereas all the others are decurrent or united 116 PRICKLY FERN. at the base: the direction which they assume, observable parti- cularly in the inferior pinnules of each pinna, forms an acute angle with the midrib of the pinna. The seed is confined to the upper portion of the frond; and, in its circular involucre at- tached by a central cord, in its circular clusters of capsules, occasionally confluent but generally separate, and in the dis- tribution of the veins, I find no characters distinct from those which I have already figured as characteristic of the preceding species. POLYSTICHUM ANGULARE. 117 + WILLDENOW’S FERN. Characters. Genus.—PoLystTicHum, (see page 103). Species.—ANnGULARE. Caudex tufted: stipes one-third as long as the frond, densely clothed with large, red, chafiy scales: frond drooping, graceful, broad-lanceolate, lax, feathery, pin- nate: pinnse very numerous, linear, distant, pinnate: pinnules distinct, stalked, often distant, auricled at the base, rounded at the apex, serrated, spined. Sononpmes, Figures, &e. Polypodium aculeatum, Lightf. Fl. Scot. 675; Huds. Fl. Ang. 459. Aspidium angulare, Willd. Sp. Pl. v. 257; Sm. EH. F. iv. 291, EE. B.S. 2776; Mack. Fl. Hib. 339. Polystichum angulare, Newm. N. A. 25, F.178; Bab. 409. Geographical Dange. For the geographical distribution see page 113. Aescription. The radicles and caudex present no characters by which I can distinguish them from those of the preceding. The stipes is distinct, about one-fourth as long as the frond, and densely clothed with large reddish scales. The plant appears to prefer 118 WILLDENOW’'S FERN. a horizontal to a vertical surface: its habit is weak, flexile, graceful and drooping; a number of fronds issue from the crown of the caudex, and, when uninterrupted, spread from a common centre, presenting a very beautiful appearance: the texture of the frond is soft and delicate, its form lanceolate and pinnate: the pinne are very numerous, elongate, linear, dis- tinct, often distant, drooping, and pinnate; the pinnules are blunt at the apex, auricled at the base, distinctly stalked and serrated at the edges, and each serrature is armed with a spine: every part of the under surface of the fronds, more especially the primary and secondary rachides, abounds in reddish chaffy scales. When we select a specimen of this plant in its extreme state, and contrast it with a specimen of P. aculeatum, also in its extreme state; when we select a central pinna of each, and POLYSTICHUM ANGULARE. 119 lay them before us side by side, on a sheet of paper, the diffe- rence is so striking, that were our observations allowed no wider range, we must exercise much sophistry in inducing even ourselves to suppose them identical. The distinctly stalked pinnules of angulare (fig. a), set on the stem at a more obtuse angle than that of the decwrrent pinnules of aculeatum (fig. b), offer instantly a character which it is impossible to resist: and this, added to the discrepancy in the habit, texture, and figure of the frond, must lead an observer to believe them distinct. It is, however, from the constant occurrence of plants intermedi- ate in habit, texture, figure and cutting, that the difficulty has arisen. Varietivs, Of this species, or variety, whichever may be the correct title, there are two most beautiful and remarkable forms; in- deed, these are so distinct, and the intermediate states so rare, that they might claim a rank at least equal to that of the fern under which I have placed them, were it not that their rare occurrence, and the proximity of abundance of the usual form of angulare, induces the conclusion that the variations are merely accidental. The first of these has the stipes of nearly equal length with the frond, and very sparingly clothed with scales: the figure of the frond is elongate-triangular, the lower pair of pinne being the longest. The entire frond is nearly without scales: its texture is leathery, but, in habit, as well as in the form of the pinnules, it agrees very closely with the nor- mal form of angulare. I found two or three roots in Hereford- shire, and Mr. Jenner has presented me with a frond gathered in Sussex. The second variety is still more remarkable.