QK5I2- ica-Kix ij! I i|! j !i ! !! I 8: IDATE DUE 1 "1 DEMCO 38-297 03 C£ IN X O * ji -fc TO 2° s! < « 2 i 31924001764988THE CRYPTOGAMIC FLORA OF OTTAWA. JOHN MACOUN, M.A., F.L.S., F.R.S.C. Reprinted from The Ottawa-Naturalist, Vul. Xl', Nos. 7 g 11 Nos. 2, 3, 5. Issued October, 1897, to September, i8g8 Vol. XII VTHE CRYPTOGAMIC FLORA OF OTTAWA. By Prof. John Macoun, M.A., F.L.S., F.R.S.C. INTRODUCTORY NOTE. For a number of years the writer has been collecting and studying the Cryptogamic flora of Ottawa and the surrounding country, during his holidays and in spare hours. At the present time his' notes ,and observations have accumulated to such an extent that he considers it better to publish an incomplete list rather than wait until his excursions could take in a wider area and include a larger number of species. Dr. James Fletcher, in “ Flora Ottawaensis,” includes an area of about 30 miles around Ottawa, and the writer purposes to 'cover about the same radius, but owing to want of time and other causes, only the district close to the city has been properly examined. It is the writer's intention to continue this work and from time to time publish the additions made by himself or others. The aim of the writer has been to place in the herbarium of the National Museum a complete set of all the species enumerated, but where possible a char- acteristic specimen of each species has been laid aside so that should the day ever come when the local flora of our city and its vicinity be gathered into one herbarium the Cryptogams will be forthcoming. I may then say that every species which appears in the following lists is held in duplicate and can be seen and examined at any time by those interested in the study of botany. My notes extend over many years, as my first collections were made in the autumn of 1883, and have continued up to the present time. Owing to my absence from the city every summer, my collecting is chiefly done in September and October, and hence many fungi that are quite common around the city do not appear in the lists. Musci Hepaticae, and Lichens are more fully represented, but there are many species yet to be detected when my excursions become more widely extended.2 The Ottawa Naturalist. [October The chief excuse for publishing these lists at the present time is that our club may be shown what a field for research lies at its very doors and how easily any one desirous of doing something in the botanical field can find work ready to his hand. In the following lists the dates following a locality mean the date when the specimen in'our herbarium was collected. MUSCI. I. SPHAGNUM. Peat Moss. 1. S. fimbriatum, Wilson. Our peat bogs contain many species of Sphagnum, but none have been carefully examined except the Mer Bleue near Eastman’s Springs, 12 miles from the city. This species has been gathered in the swamp on the Glebe property, Bank St.; in the Mer Bleue, and near Casselman on the C.A.Ry. 2. S- Girgenshonii, Russ. This species is chiefly found amongst black ash, growing in rigid hummocks. Collected in the swamp at the north-east corner of Beechwood Cemetery. Var. hygrophilum, Warnst. This form has been found on the Glebe property and in the swamp on the north side of Beechwood Cemetery. 3. S. fuscum, (Schpr.) var. fuscescens, Warnst. This is a common species in all peat bogs, and is particularly abundant in the Mer Bleue ; at Casselman ; and in the swamp on the Glebe property. This is the dull rusty-coloured form. Var. pallescens, Warnst. Very common in the Mer Bleue and certainly in all large bogs in in the district. 4. S. tenellum (Schpr.) var. rubellum, (Wils.) This form is very abundant is the Mer Bleue, and is easily dis- tinguished from the preceding by its bright red colour. 5. S. acutifolium, (Ehrh.) This is a very common species in all peat bogs, and takes many forms and colours, passing from white to purple and bright red. The common form is abundant in the swamp on the Glebe property, in Dow’s Swamp at Casselman, and in the Mer Bleue.1897] Macoun—Cryptogamic Flora of Ottawa. 3 Var. versicolor, Warnst. This form is white and purple, and is very beautiful. It is abund- ant in the Mer Bleue, and in the swamp on the Glebe property. Var. pallescens, Warnst, Growing generally in water, and always quite white. Common in the Mer Bleue. 6. S. recurvum, (Beauv.) var. pulchrum, Lindb. This species prefers the borders of peat bogs, water-holes in them, and black ash swamps, and takes many forms. Its forms are recognized by their recurved leaves. Wet woods along the borders of the Met Bleue. Var. mucronatum, Russ. Wet woods along the Mer Bleue. Var. amblyphyllum, Russ. In water in holes in the Mer Bleue, Var. parvifolium (Sendt.) In the Mer Bleue and in the swamp north of Beechwood Cemetery. 7. S. cuspidatum, (Ehrh.) var. submersum, Schpr. Much like the preceding, but leaves not recurved. In the swamp on the Glebe property, Bank St. 8. S. squarrosum, Pers, var. speciosum, Russ. This is a very beautiful species, generally found in hollows in damp woods. Its leaves are always very much recurved. In damp woods north of Beechwood Cemetery ■ at Casselman ; and in woods by the Mer Bleue. 9. S. Wulfianum, Girg. Abundant in spots in the Mer Bleue. A beautiful species. * Var. macroclada, Warnst. In wet spots in the woods north of Beechwood Cemetery. Var. viride, Wainst. Swamp north of Beechwood Cerr.^ry ; £nd in the swamp on the Glebe property, Bank St. 10. S. cymbifolium, Ehrh. This, the next peat moss four'’ form the bulk of , cVvo species and S. aculifohum ^ jn the bogs of Europe and America and produce the4 The Ottawa Naturalist. [October litter now so extensively used iu the large cities of Europe and America. Abundant in Dow’s Swamp, on the Glebe property and in the Mer Bleue. 11. S. papillosum, Lindb. Abundant in the open parts of the Mer Bleue. 12. S. medium, Limpr. Var. purpurascens, Russ. This species has been taken for a red or purplish variety of No. io, but it is considered quite distinct. Abundant in the Mer Bleue. II. EPHEMERUM. Hampe. 13. E. minutissimum, Lindb. Abundant on the indundated ground on both sides o( the dis- charge from Leamy’s Lake, near Hull, Que. Sept. 16th, r889. Fruiting. III. ARCHIDIUM, Brid. 14. A. ohioense, Sulliv. On inundated soil along the outlet of Leamy’s Lake, Hull, Que. Fruiting in September. IV. GYMNOSTOMUM, Hedw. 15. G- curvirostum, Hedw. Under wet ledges along the Ottawa at Rockhffe, near the old mill, Nov. 9th, 1896 ; also on wet rocks, Kingsmere, near Chelsea, Que. Fruiting in summer. 16. G. rupestre, Schw. On wet limestone ledges at the east side of Rockcliffe, near the old mill, May 7th, 1896. V. WE1SSIA, Hedw. 17. W, viridula, Brid. On earth in woods east of Leamy’s Lake, Que. ; collected on earth along the cliff, Rockcliffe Park,* April 22nd, 1896. Fruiting in September. VI. CYNODONTIUM, Schimp. 18. C. Wahlenbergii (Brid.) On dead and decaying logs in woods near Leamy’s Lake, Hull, Que. ; at Meeche’s Lake, north of Chelsea, Que., Sept. 23rd, 1893. VII. DICRANELI.A, Schimp. 19. D, varia, Schimp. On springy or wet clay banks. Fruiting in September. Sides of1897] Macoun—Cryptogamic Flora of Ottawa. 5 ditches along the railway on the Experimental Farm ; also along the Parry Sound Railway west of Hintonburg ; on the sides of the dis- charge of Leamy’s Lake, near Hull, Que. ; in a C. A. Ry. cutting at Moose Creek. Sept. 6th, 1889. 20. D. heteromalla, Schimp. Common in sandy woods or on the roots of turned-up trees and by roadside banks. Fruiting in summer. Woods at Ironsides and Chelsea, Que. ; also at Casselman and Carleton Place ; in woods at West End Park, Ottawa ; in McKay’s Woods. Sept. 12th, 1889. VIII. DICRANUM, Hedw. 21. D. montanum, Hedw, On decaying logs, and stumps and bases of standing trees in woods. Does not fruit at Ottawa. On the bases of trees at Leamy’s Lake, Hull, Que. ; on stumps on “ Pine Hill.,” Rockcliffe Park, April 14th, 1896. 22. D. fulvum, Hook. On boulders in woods. Not rare in McKay’s woods, but seldom fruiting ; on boulders “ Pine Hill,” Rockcliffe Park ; on rocks, Aylmer Road west of Hull, Que. October igth, 1891. 23. D. viride, Schimp. On the bases of growing trees ; always barren. Quite common in McKay’s Bush and Beechwood Cemetery ; in woods at Buckingham, Que., May 14th, 1896. 24. D. flagellare, Hedw. On decaying logs in damp or shady woods. Fruiting in spring. Meeche’s Lake and Chelsea, Que.; on “ Pine Hill,” Rockcliffe Park. April 28th, 1896. 25. D. scoparium, Hedw. Very common on earth in all woods around Ottawa. Rockcliffe Park, April 22nd, 1897. 26. D. scopariiforme, Kindb. Intermediate between D. scoparium, Hedw. and D. fuscescens, Turn. Dioecious. Leaves greenish-yellow, flexuous, lanceolate, subulate with a short and flat subula ; margin nearly flat or slightly incurved, densely and sharply serrate to one-third ; cell-walls rarely interrupted by pores ; upper cells oblong-oval, lower not much nairower, inner basal light brown ; costa thick, percurrent, with two serrate ridges at the back in the upper part. Capsule curved, not striate ; pedicel red, and short.6 The Ottawa Naturalist. [October On earth and logs in damper woods than the preceding species. Damp and wet logs in the swamp north of Beechwood Cemetery ; on rocks Meeche’s Lake, near Chelsea, Que. Sept. 23rd, 1893. 27. D. fuscescens, Turn. On old logs in Dow’s Swamp ; at Chelsea and Kingsmere, Que. Fruiting on old logs near Leamy’s Lake, Hull, Que. Sept. 6th, 1889. 28. D. Bonjeani, DeNot, On earth in Dow’s Swamp ; in wet woods along the borders ot the Mer Bleue. Aug. 26th, 1889. Barren. 29. D. undulatum, Turn. Common in cool damp woods on earth. Stewart’s Bush, Dow’s Swamp, Mer Bleue, and McKay’s Woods ;on the cliffs, Rockcliffe Park, April 22nd, 1896. Fruiting in summer. 30. D. spurium, Hedw. On Laurentian rocks on Gilmour’s Island, Chelsea, Que. May 22nd, 1892. Barren. IX. FISSIDENS, Hedw. 31. F. bryoides, Hedw. On earth in woods between St. Patrick’s Bridge and Beechwood Cemetery, east of the road ; on earth in woods Leamy’s Lake, Hull, Que. Oct. 16th, 1889. Fruiting. 32. F. minutulus, Sulliv. On stones in the channel of the small brook entering McKay’s Lake near Beechwood Cemetery, Oct. 12th, 1884. Fruiting. 33. F. pusillus, Wils. Abundant on damp, flat, limestone rocks in McKay’s Woods, south-west of the lake. Oct. 12th, 1884. Fruiting. 34. F. osmundoides, Hedw. On earth on turned-up trees in Dow’s Swamp ; on roots of trees in woods at Leamy’s Lake, Hull, Que. ; on roots of trees in old woods at Carleton Place. May 31st, 1884. 35. F. decipiens, DeNot. Very abundant on turned-up roots and old stumps in Dow’s Swamp ; on earth in woods at Leamy’s Lake, Hull, Que. ; also in McKay’s Bush near the lake ; collected on damp rocks, Rockcliffe Park, April 22nd, 1896.1897] Macoun—Cryptogamic Flora of Ottawa. 7 X. LEUCOBRYUM, Hampe. 36. L. vulgare, Hampe. On earth in damp woods north of Beechwood Cemetery : also in woods on “ Long Point,” Mer Bleue ; on the banks of the l.ievre River at Buckingham, Que, May 14th, 1896. Seldom fruiting. XI. CERATODON, Brid, 37. C. purpureus, Brid. Very common everywhere in pasture fields, by roadsides, on old fences and roofs of houses. Our commonest moss, and found in all parts of the habitable earth. Fruiting in early spring. With mature fruit, May 12th, 1896. XII. SELIGERIA, Bruch and Schimp. 38. S. campylopoda, Kindb. Agrees with Seligeria recurvata in the shape of the capsule and the arcuate pediel, but differs considerably in the leaves being broader, very much shorter, sublinear, obtuse, rarely short-acuminate and sub- acute. and the costa not excurrent, the perichetial leaves ovate-oblong, thin-costate, the peristome darker red. The male flower is fixed on the side of the female. Under damp overhanging limestone rocks near the upper part of the Beaver Meadow, on the east .side, west of Hull. Que. April 26th, 1891. Fruit nearly full grown. 39. S. recurvata, Bruch, and Schimp. On large boulders by the roadside leading from the end of the Electric Railway eastward towards the old mill, Rockchffe Park. May 7th, 1896. Fruit ripe. XIII. DIDYMODON, Hedw. D. rubellus, Bruch, and Schimp. On damp limestone ledges near McKay’s Lake ; also on ledges at Leamy’s Lake, Hull ; Chelsea and Meeche’s Lake, Que. ; on damp limestone rocks Rockchffe Park. April 22nd, 1896. Fruiting. XIV. LEPTOTRICHUM, Hampe. 41- L. tortile, C. Muell. Roadside near the Mer Bleue ; at Eastman’s Springs, Sept. 29th, 1892 ; on an old road in woods at the end of the Electric Road, Rock- cliffe Park.8 The Ottawa Naturalist. [October 42. L. glaucescens, Hampe, On calcareous earth in crevices of rocks along lakes and rivers. Along the outlet of Leamy’s Lake, south side ; at Kirk’s Ferry and Meeche’s Lake ; on the cliffs facing the Ottawa, Rockcliffe Park. April 22nd, 1896. XV. BARBULA, Hedw. 43. B. brevirostris, Bruch, and Schimp. (?) On large boulders, growing with Seligeria recurvata along the road leading east from the end of the Electric Road at Rockcliffe Park, May 7th, 1896. Fruiting. 44. B. tortuosa, Web. and Mohr. On rocks near McKay’s Lake and around the cliffs, Rockcliffe Park ; on 11 Pine Hill,” Rockcliffe Park, April 161 h, 1896 ; on rocks Meeche’s Lake near Chelsea, Que., Sept. 23rd, 1893. 45- B. unguiculata, Hedw. Very common, some years, on old roads and streets in and around Ottawa. Mackenzie Ave , Oct. 12th 1896 ; on limestone rocks by the Ottawa, Rockcliffe Park. 46. B. convoluta, Hedw, Quite common in pastures, growing with Ceratodon purpureus, known by its yellow pedicels. By roadsides and in pastures at the Experimental Farm and north-west to Hintonburg ; also by the C.P.Ry. at Carleton Place ; on earth in pastures at Rockcliffe Park, May 12th, 1896. Fruiting early in spring. 47. B. ruralis, Hedw. Generally found on limestone shingle or gravelly ridges. Rock- cliffe Park near Governor’s Bay; at Britannia and along the railway at Carleton Place. Earren. XVI. GRIMMIA. 48. G. apocarpa, Hedw. On boulders everywhere around Ottawa ; especially in McKay’s Woods ; at Meeche’s Lake and Chelsea, Que. ; at Carleton Place, and Stittsville ; on “ Pine Hill,” Rockcliffe Park, .April 14th, 1896. Fruiting abundantly late in autumn. XVII. HEDWIGIA, Ehrh. 49. H. ciliata, Ehrh. Quite common on boulders, McKay’s Woods, and other places1897] Macoun— Cryptogamic Flora of Ottawa. 9 around Ottawa ; on bou'ders “ Pine Hill,’' Rockcliffe Park, April 16th, 1896. Fruiting. Var. viridis, Schimp. On boulders in shady woods quite common at Ottawa ; Oct. 12th, 1884. Var. subnuda, Kindb. 1.eaves nearly hairless, the greater number broadly ovate, borders reflexed ; cells larger, subquadrate. On boulders in McKay’s Woods near the'lake, April 28th, 1896. Fruiting. XVHI. ULOTA, Mohr. 50. U- Ludwigii, Brid. On trees along the creek in Beaver Meadow north of the toll-gate on the Aylmer Road ; very rare on “ Pine Hill,” Rockcliffe Park. May 7th, 1896. 51. U. crispa, Brid. On cedar trees in Dow’s Swamp ; and on spruce trees along the Beaver Meadow Creek west of Hull, Que. ; on spruce trees in Rock- cliffe Park near Governor’s Bay, April 22nd, 1896. 52. U. camptopoda, Kindb. Stem not creeping. Leaves, when dry crisped, when moist patent, or squarrose, often curved, faintly papillose, from a short dilated ventri- cose base, suddenly narrowed into the acute or subulate acumen, borders recurved at the.base, and also often above on one side ; outer basal cells, disposed in 2-5 rows, quadrate-rectangular thick-walled ; inner narrow, orange, upper rotundate ; costa elevate, stout percurrent. Capsule small, long-necked, when dry faintly plicate, narrow, sub- cylindric and not constricted below the mouth, ohovate when moist ; teeth bigerminate, pale, when dry recurved ; cilia none : lid long- apiculate ; pedicel long, but not much emergent, flexible, more or less curved or geniculate, in young as well as in the dry s'ate ; calyptra densely hairy, covering the capsule. Habit of U. crispula. Agrees with U. maritima in the curved pedicel ; differs from U. Ludwigii in the narrower capsule. Growing together with U. Ludwigii on trees along the Leaver Meadow Creek west of Hull, Que. ; also on the pales on the south-west corner of the Cemetery west of Hull on the Aylmer Road, Que. ; April 26th, 1891. 53. U. connectens, Kindb. Monoecious. Tufts soft, pulvinate. green above ; blackish below. Stems erect. Leaves, from an ovate concave base, linear-lanceolate,IO The Ottawa Naturalist. [Octol^er when dry very much cr sped, when moist subarcuate, short attenuate to the acute apex ; holders revolute above the base, for the greater part, at least on one side, distinctly papillose, also at the back ; cells at basal wings sub-quadrate hyaline with incrassate transverse walls, those next the costa narrower, rectangular, in straight rows, the lowest orange ; costa pale, sub-percurrent. Male flower at the side of the female. Inner perigonial leaves broad, short-ovate, obtusate or suddenly short-acum- inate ; cells round only in the acumen, the others narrow, the lower basal wider and yellow ; antheridia about 9, with several paraphyses, Perichetial leaves with sublinear basal cells. Capsule dark-brown short subovoid, not contracted at the mouth, costate ; pedicel short, scarcely emergent. Calyptra densely hairy. This species is a true Ulota, although the revolute leaf-borders, the distinctly papillose cells and short pedicellate capsule are more like an Orthotrichum, O.i cedar trees ( Thuya occidentalis) in Dow’s Swamp, September 16th, 1886. Both the preceding species are believed to be forms of U. crispa by Mrs. E. G. Britton, who has made a special study of the genus. XIX. ORTHOTRICHUM, Tledw. 54. O. anomalum, Hedw. On rocks and ledges along the Ottawa at Governor’s Bay, Rock- cliffe Park ; also on ledges near McKay’s Lake, in fruit Apfil 22nd, 1896. Fruiting. 55. O. speciosum, Nees. Common on balsam fir, cedar and spruce trees in the woods east of Beaver Meadow west of Hull, Que. ; also on spruce trees in Rock- cliffe Park ; collected on trees and fence rails near Hintonburg, April 13th, 1896. Fruiting. 56. O. sordidum, Sulliv. and Lesq. Common on beech trees in woods near Ironsides, Que. ; collected on trees in Rockcliffe Park and Beechwood Cemetery, April 22nd, 1896. Fruiting. 57. O Ohioense, Sulliv. and Lesq. On trunks in woods near Leamy’s Lake, Hull, Que.; old fence rails at Carleton Place ; collected on trees in woods near Governor’s Bay, Rockcliffe Park,'April 22nd, 1896. Fruiting. 38. O. Canadense, Bruch and Schimp. This species appears in Part VI under 0. Schimperi but was dis- covered by Mrs. E. G. Britton when monographing the genus some1897] Macoun—Cryptogamic Flora of Ottawa. ii years since. It is apparently very rare as its occurrence in America was doubted when l.esq. and James’ work on the mosses appeared in 1884. On rocks at the corner of Rockcliffe Park close to Governor’s Bay. October 12th, 1884. 59. O. cupulatum, Hoffm. On limestone rocks along the cliffs facing the Ottawa near Governor’s Bay, Rockcliffe Park. April 16th, 1891. 60• O. strangulatum, Beauv. On trunks and fences around Ottawa ; woods at Ironsides, Chelsea and near Lea my’s Lake, Que. ; also in McKay’s Woods and in Beech- wood Cemetery ;collected on trees in Rockcliffe Park, April 22nd, 1896. 61. O. psilothecium, C. M. and Kindb. Plants small, 1 cm. long or less, green Leaves short oblong- lanceolate, obtusate or short-acuminate, sub-obtuse, revolute at the borders to the greater part, faintly papillose ; costa percurrent, Capsule small, immersed, oblong, not striate before.sporosis, very short-necked; vaginula naked ; calyptra slightly hairy at the blackish apex, finally glabrous and light-brown, narrow, covering the whole capsule ; lid ros- tellate. Male flp.wers on distinct branches. This species has the habit of O. fal!ax% Schimp. (O. Schitnperi, Hamm.) We have not been able to examine the peristome and the stomata of the capsule, because only one capsule (in our specimen) is nearly ripe, the others are quite unripe. On old fences in Rockcliffe Park ; on cedar tails along the Rich- mond Road, near Hintonburg ; collected on old fences at Carleton Place, Aug. 26th, 1889. 62. O. obtusifolium, Schrad. On old cedar rails and trunks of balsam poplar ; on rails in McKay’s Bush ; on poplar trees along the Gatineau River, near Leamy’s Lake, Hull, Que. ; collected on poplar trees near Hinton- burg, April 18th 1896. XX. ENCALYPTA, Schreb. 63. E. vulgaris, Hedw. On limestone ledges on the south side of the outlet of Leamy’s Lake, near the Hull Cemetery, Que., Oct. nth, 1890. 64. E. Macounii, Austin. In crevices of limestone rocks around the whole cliff facing the Ottawa in Rockcliffe Park, April 22nd, 1896 ; crevices of rocks along the Gatineau at Kirk’s Ferry, Que. Fruiting.12 The Ottawa Naturalist. [October 65. E. streptocarpa, Hedw. On limestone rocks at the outlet of Leamy’s Lake, near Hull Cemetery, Que., Sept. 6th, 1889 ; on the cliff's at Governor’s Bay, Rockcliffe Park. Barren. XXL TETRAPHIS, Hedw. 66. T. pellucida, Hedw. On the bases of stumps and dead logs (chiefly pine and cedar), in all swamps and wet woods around Ottawa On old stumps in Dow’s Swamp, and on Cowley’s Farm, near Hintonburg; collected April 18th, 1896. Fruiting. XXII. PHYSCOMITRIUM, Brid. 67. P. immersum, Sulliv. On inundated alluvial soil (in small tufts) along the outlet of Leamy’s Lake, near Hull, Que. Sept. 16th, 1889. Fruiting. 68. P. platyphyllum, Kindb. Lower leaves sublingulate, yellow-margined, serrate all round, with a percurrent costa ; the upper very broad, ovate-acuminate ; indistinctly margined, serrate above the middle, costa percurrent or short excurrent ; cells wide sub-hexagonal,the basal sub rectangular, all hyaline. Calyptra mitriform. Capsule pyriforme ; lid mammillate ; pedicel (unripe) yellow, about 1 cm. long, or shorter. Since this description was published Mrs. E G. Britton has examined the specimen and pronounces it P. turbinatum, Muell. Better specimens are wanted to settle the question, but houses and lawns and asphalt cover where it was found by Dr. Fletcher many years ago. On earth at the southern end of Metcalfe Street, Ottawa. XXIII. FUNARIA, Schreb. 69. F. hygrometrica, Sibth Very common on old walls and especially on burnt soil in damp woods and on old turned-up roots in swamps. Common around Ottawa and at Carleton Place. XXIV. BARTRAMIA, Hedw. 70. B. CEderiana, Swartz. On rocks east of the Beaver Meadow, west of Hull; on damp rocks, Chelsea and Kingsmere, Que.; on limestone rocks near McKay’s Lake ; collected on the cliffs by the Ottawa, Rockcliffe Park, April 22nd, 1896. Fruiting.13 1897] Macoun—Cryptogamic Flora ok Ottawa. 71. B. pomiformis, Hedw. Crevices of damp and dripping rocks near Gilmour’s Mill, Chelsea, Que. ; collected on damp limestone ledges on the cliffs facing Gatineau Point, Rockcliffe Park, April 22nd, 1896. Fruiting. XXV. PHILONOTIS, Brid. 72. P. fontana, Brid. By springs at Kingsmere, and Kirk’s Ferry, Que. XXVI. LEPTOBRYUM, Schimp. 73. L. pyriforme, Schimp. Rather common on burnt soil in swamps and along ditches. Cas- selman and Carleton Place ; border of Dow’s Swamp, Oct. 12th, 1884. XXVII. WEBERA, Hedw. 74. W. nutans, Hedw. On rotten logs and stumps in swamps and wet woods ; common> Dow’s Swamp, Kingsmere and Casselman; common in McKay’s Bush ; collected on old logs in Beechwood Cemetery, May 12th, 1896. Fruit- ing. Mer Bleue June 15th, 1892. 75. W. albicans, Schimp. On wet limestone rocks, under the cliffs at the end of the Electric Road, Rockcliffe Park. Nov. 9th, 1896. XXVIII. BRYUM, Dill. 76. B. pendulum, Schimp. On wet earth at Ottawa ; woods north of Beechwood Cemetery, October 20th, 1884.4 The Ottawa Naturalist. [December 77. B. bimum, Schreb. Common in wet woods and swamps. Borders of the Mer Bleue, June 15th, 1892. 78. B. intermedium, Brid. Crevices of damp rocks and old walls. In the old quarry in Rock- clifFe Park and along the cliffs by the Ottawa. May 12th, 1896. 79. B. argenteum, Linn. Very common on roadsides and on desiccated soil in old pastures and waste places. On earth along St. Louis Dam, October 24th, 1884. 80. B. casspiticium, Linn. On earth in pasture fields and open thickets ; open places in Rock- cliffe Parkt May 7th, 1896 ; in old pastures near Hintonburg, Oct. 4th, 1884. 81. B. capillare, Linn. Var. heteroneuron, C. M. & Kindb. On roots of trees in McKay’s Bush near the lake, May 24th, 1888. 82. B. Duvalii, Voit. In ditches and on wet rocks. In a springy place at the end of the Electric Railway, Rockcliffe Park. 83. B. pseudo-triquetrum, Schwasger. In wet woods and swamps. Swamp north of Beechwood Cemetery ; also in Dow’s Swamp. 84. B. Ontariense Kindb. Intermediate between B. roseton and B. Beyrichii (Hsch.), C. Mueller. Comal leaves very numerous ; lingulate, abruptly and short acuminate, revolute to y$ or yellow-margined above with great con- fluent teeth ; costa stout, excurrent. Capsule pale, with a distinct, curved collum half as long, teeth papillose and hyaline above ; arche- gonia numerous ; lid convex short-apiculate, not oblique. Hitherto confounded with B. roseum, and quite common through- out Ontario ; generally in a barren state. On old logs and some- times on limestone rocks in maple woods around Ottawa. Beechwood Cemetery, Rockcliffe Park, Carleton Place and Eastman’s Springs ; on logs in Dow’s Swamp, October 10th, 1889. 85. B. Laweri, Ren. and Cardt. On rocks opposite the island in the Gatineau River, Gilmour’s Park, Chelsea Que., Sept, 9th, 1889.1897] Macoun—Cryptooamic Flora of Ottawa. is XXIX. MNIUM, Linn. 86. M. cuspidatum, Hedw. Quite common on earth at the roots of trees in dry woods. On earth in woods Patterson’s Creek, Stewart’s Bush, Carleton Place, and Beechwood Cemetery ; on earth in Rockcliffe Park, April 28th, 1896. 87. M. rostratum, Schwaegr. On a large boulder on “Pine Hill,” Rockcliffe Park, April 16th, 1896. Barren. 88. M. Drummondi, Br. and Sch. In damp or swampy woods, near High Rock, Lihvre River, above Buckingham, Que., May 19th, 1884. 89. M. affine, Bland. On earth in swamps and along brooks. On roots of trees along the brook west of West End Park, October 10th, 1884. 90 M. rugicum, Laur. Rather common, growing in the wettest part of Dow’s Swamp. Sept. 16th, 1889. 91. M orthorrhynchum, Br. and Sch. On damp limestone rocks near McKay’s Lake, Aug. 26th and Oct. rath, 1889. 92 M. pseudo-Iycopodiodes, C. Muell. On the bases of trees in cedar and black ash swamps. In Dow’s Swamp and at Casselman ; in the swamp north of Beechwood Cemetery, May 7th, 1896. Fruiting ; on rocks in a brook, Meeche’s Lake, near Chelsea, Que., Sept. 23rd, 1893. 93. M. inclinatum, Lindb. On old stumps in Dow’s Swamp ; on damp limestone rocks along McKa>’s Lake, April 22nd, 1896 ; old fruit. Old stumps in Dow’s Swamp, Sept. 16th, 1S89. 94- M. spinulosum, Br. and Sch. On earth at the bases of trees, chiefly hemlocks. Wet woods north of Beechwood Cemetery ; woods near Carleton Place ; on the bank of the Lievre River at Buckingham, Que., May 14th, 1896. Fruiting. 95. M. stellare, Hedw. On old stumps in cedar swamps. In Dow’s Swamp, May 2nd, 1896. Old fruit.i6 The Ottawa Naturalist. [December 96. M. punctatum, Hedw. On earth in cedar swamps and along small brooks in woods. In Dow’s Swamp ; also by a brook near Meeche’s Lake, north of Chelsea, Que., Sept. 23rd, 1893. XXX. AULACOMNIUM, Schwaegr. 97. A. palustre, Schw. Very common in swamps. Mer Bleue and at Casselman. XXXI. TIMMIA, Hedw. 98. T. megapolitina, Hedw. On roots of trees by brooks in wrare on °ld legs near Ottawa River, Hull : on a pine tree, Pine Hill, Rockcliffe Park, rare on old stumps and rails in a fence one mile south east of Billing’s Bridge ; also on red maples Leamy’s Lake ; on trees in a swamp in Stittsville ; old logs King’s Mountain, west of Chelsea. Var. farinacea, Schaer. On trees, old fence rails, and ledges of rocks. Rare on bark along the CAR. in Stewart’s Bush, April 12th, 1895 : on old fence rails West End Park ; on limestone ledges on the face of the cliff, opposite Gatineau Point, Rockcliffe Park. Var. canaliculata, Fr. On a balsam fir in a swamp a little east of Stittsville, May 14th, 1897. 276. Ramalina pusilla (Prev.) Var. geniculata, Tuck. On twigs of spruce tress near Ironsides, Que., Oct. 6th, 1891. II. CETRARIA, (Ach.) Fr. 277. Cetraria ciliaris, (Ach.) On old fence rails and boards and occasionally on pine stumps and trees. On old fence rails, West End Park, April 16th, 1892 ; on old board fencing at Buckingham, Que. ; on an old pine stump one mile above Britannia ; on tamarack trees in a swamp at Stittsville, May 14th, 1897.1898] Macoun—Cryptogamic Flora of Ottawa. 41 278. Cetraria saepincola, (Ehrh.) Ach. Rare. Occasionally in swamps. On branches of black spruce in the Mer Bleue, Eastman’s Springs, June 16th, 1891. 279. Cetraria lacunosa, Ach. Rare in the Ottawa district. ; on trees and rails. On old fence rails and boards at Buckingham, Que., May 14th, 1896. 280 Cetrartia Oakesiana, Tuckerm. Very rare in Canada. On the base of living pine trees and at the base of pine stumps, Rockcliffe Park, April 17th, 1895 ; on the base of a pine stump by a swamp at Stittsville : old pine log, King’s Mountain, west of Chelsea, May 22nd, 1897, 281. Cetraria juniperina (L.) Var. Pinastri, Ach. Rare in the Ottawa district. On dead brai ches of black spruce and old logs in the Mer Bleue, at Eastman’s Springs, June 16th, 1891 ; on branches of tamarack in a swamp at Stittsville, May 14th, 1897. III. EVERNIA, Ach. 282. Evernia prunastri, (L.) Ach. On trees, stumps and old fences ; rare. On old pine stumps at Britannia, April ioth, 1884 ; on old rails along the Richmond Road above Hintonburg ; on an old fence, Ottawa East ; on trees in the swamp west ol Hull Station ; on branches of tamarack trees in a swamp at Stittsville, May 14th, 1897. IV. USNEA, (Dill.) Ach. 283. Usnea barbata, (L.) Var. hirta, Fr. On trunks south of the Aylmer Road, west of Hull, Que., April 26th, 1891 ; on a spruce tree, Rockcliffe Park ; on pine slumps at Bri- tannia ; on spruce and tamarack trees in the Mer Bleue, at Eastman’s Springs ; on tamarack trees in a swamp at Stittsville ; old log, King’s Mountain, west of Chelsea, May 22nd, 1897. V. ALECTORIA, (Ach.) Nyl. 284. Alectoria jubata, (I. ) Var chalybeiformis, Ach. Rare on dead wood or on the earth. On old pine stumps at Brit- annia, April 20th, 1895 ; on tamarack trees in a swamp at Stittsville, May 14th, 1897. Var. implexa, Fr. Quite common in tamarack and other swamps, hanging like black hair from the branches. On black spruce and tamarack in the Mer Bleue, at Eastman’s Springs, June 16th, 1891.42 The Ottawa Naturalist. [May VI. THELOSCHISTES, Norm. 285. TKeroschfstes polycarpus, (Efirh.) A common species on living trees and dead wood. On black ash and white cedar trunks and balsam poplar branches in Stewart’s Bush, April 12th, 1895 ; common on willow, red ash and alder at Britannia ; on balsam poplar and white ash trunks, at Hintonburg ; and on ash and rock elm in Beechwood ; on old fence boards at Billing’s Bridge ; on red maple and ash at Leamy’s Lake ; rare on trees at Stittsville ; on trunks, King’s Mountain, west of Chelsea, May 22nd, 1897. 286. Theloschistes concolor, Dicks. On ash trees west of West End Park, April 16th, 1892 ; on white cedar bark by the C.A.R. in Stewart’s Bush ; quite common on willow, ash, maple and alder at Britannia ; common on bark of trees, Aylmer Road, west of Hull ; on trunks of black ash in woods west of Hinton- burg ; also on basswood trees at Carleton Place ; on a black ash log, Ottawa East, and on ash trees in Beechwood : on old fence boards at Billing’s Bridge ; on various trees in woods, Leamy’s Lake ; on trees at Stittsville ; on trunks, King’s Mountain, west of Chelsea, May 22nd. 1897. VII. PARMEl.IA, (Ach ) De Not. 287. Parmelia perlata, (L.) Ach. Not uncommon on trunks in wet woods or swamps. A fine species but seldom found in fruit. On ash trees by the C A.R., Stewart’s Bush, April 12th, 1895 ; on a spruce trunk in Rockcliffe Park ; on birch trees, Skead’s Far u, Richmond Road ; on white cedar, black ash, and cherry birch in ihe swamp near Beechwood Cemetery ; on a birch tree in Dow’s Swamp ; on trees in woods at Chelsea, Que. ; also on trees at Carleton Place ; on trees in the swamp west of Hull Station, Oct. 9th, 1896. 288. Parmelia tiliacea, (Hoffm.) Floerk. Rather uncommon except in deep, cool woods. On birch trees on Skead’s Farm, Richmond Road ; on beech and other trees, Rock- cliffe Park ; on young spruce trees in woods, Beaver Meadow west of Hull ;on a beech tree in woods one mile south-east of Billing’s Bridge; on red maple at Leamy’s Lake ; on beech trunks, King’s Mountain, west of Chelsea, May 22nd, 1897. 289. Parmelia Borreri, (Turn.) Apparently rare in the vicinity of Ottawa. On trunks in woods north of Beechwood Cemetery, April 23rd, 1891 ; on trees in a swamp at Stittsville, May 14th, 1897.43 1898] Macoun—Cryptogamic Flora of Ottawa. Var. rudecta, Tuckerm. Very common on old rails and dead wood, around Ottawa. On dead wood and old rails in Stewart’s Bush, April 12th, 1895 ; on dead wood, living spruce trees and boulders, Rockcliffe Park ; on dead wood at Britannia ; on dead pines, Aylmer Road, west of Hull ; on white cedar north of Beech wood ; on dead trees at Carleton Place ; on a beech tree in woods one mile south-east of Billing’s Bridge ; on large trees in woods, Leamy’s Lake ; on old rails and logs, King’s Mountain, west of Chelsea, May 22nd, 1897. i 290. Parmelia saxatilis, (L.) Fr. On trunks, dead wood, and rocks. On trunks in woods at Leamy’s Lake, May 7th, 1897 ; on tamarack and other trees in a swamp at Stittsville, May 22nd, 1897. Var. sulcata, Nyl. On trunks, dead wood and rocks. On the branches of a dead spruce, Rockcliffe Park, April 17th, 1895 ; on boulders along a fence^ Ottawa East ; on red maples in woods near Leamy’s Lake, Hull, Que.'; on old logs and rails east of Stittsville ; on rocks and trunks, King’s Mountain, west of Chelsea, May 22nd, 1897. 291. Parmelia physodes, (L.) Ach. On dead wood, old fence rails, boards and rocks. On the branches of dead spruce, Rockcliffe Park, April 17th, 1895 ; on pine stumps at Britannia ; on old fence rails and boards at Buckingham, Que. ; on old fence rails and tamarack trees at Stittsville ; cn old logs and rails, King’s Mountain, west of Chelsea. 292. Parmelia colpodes, (Ach.) Nyl. Not rare, chiefly on tamarack trees. In a swamp a little east of Stittsville, north of the Can. Pac. Railway, May 14th, 1897 ; on trunks, western slope King’s Mountain, May 22nd, 1897. 293. Parmelia olivacea, (L.) Ach. On trees and old rails. On alders, red maple and red ash at Britannia, April 20th, 1895 ; rare on pine trees west of Hull ; on old rails, Ottawa East ; on old rails at Dow’s Swamp ; and on young pines at Carleton Place ; on old pine stumps, Leamy’s Lake ; common on tamarack trees in a swamp at Stittsville, May 14th, 1897. Var. aspidiota, Ach. Same habitat as the species. On alder bushes at Britannia, April 20th, 1895 ; on alder bushes near Leamy’s Lake, Hull, Que. ; on tam- arack trees in a swamp at Stittsville, May 14th, 1897.44 The Ottawa Naturalist. [May Var. sorediata, (Acb.) Nyl. On trees and rocks ; rare. On maple trunks north of Aylmer Road, west of Hull, Que., April 26th, 1891. 294. Parmelia caperata, (L.) Ach. On trunks, dead wood, and stones ; common. On old rails and pine trees, Clemow’s Woods, Bank St., April 12th, 1895 ; common on dead and living trees at Rockcliffe, Beechwood and Ottawa East ; abundant on old rails and dead wood at Britannia ; common on dead pines Aylmer Road and by tbe Beavet Meadow, Hull ; old fence rails, west of Hintonburg and YVest End Park ; on rails in Dow’s Swamp ; and on trees at Carleton Place ; on old fences around Billing’s Bridge ; on trees of all kinds at Leamy’s Lake ; on old stumps and fences at Stittsville ; very common, King’s Mountain, Chelsea, Que. 295. Parmelia conspersa, (Ehrh.) Ach. Abundant on boulders in all old fields and fences around Ottawa. Collected in Rockcliffe Park, Ottawa East, by Dow’s Swamp, fields at Hintonburg, and along the Aylmer Road west of Hull ; on boulders around Billing’s Bridge; on boulders at Brigham’s Creek, near Leamy’s Lake ; on boulders at Stittsville ; on boulders and other rocks, King’s Mountain, Chelsea, Que. VIII. PHYSICA, DC. 296. Physcia speciosa, (Ach.) Nyl. On trees and mossy rocks in woods. On trees at Ottawa, 1884 ; on trees in Beechwood Cemetery ; on trunks, Pine Hill, Rockcliffe Park, April 16th, 1896 ; on a hemlock trunk in woods north of Beech- wood Cemetery ; on a beech tree in woods one mile south-east of Eilling’s Bridge ; on the bases of basswood trees in woods at Leamy’s Lake, May 7th, 1897. 297. Physica granulifera, (Ach.) Tuckerm. On trunks. On bark of trees north of Aylmer Road, Hull, Que., April 26th, 1891 ; on ash trees, Cowley’s Farm, west of Hintonburg ; on large trees in woods at Leamy’s Lake, May 7th, 1897. 298. Physcia pulverulenta, (Schreb.) Nyl. On trunks and rocks. On black ash trunks, Stewart’s Bush, April i2tb, 1895 : on ash trees at Britannia ; on living and dead trees, Skead’s Farm, Hintonburg ; quite common on ash and other trees along the Aylmer Road west of Hull ; on ash trunks in Dow’s Swamp, Ottawa East, Beechwood and Rockcliffe Park ; on large trunks in woods, Leamy’s Lake ; on trees at Stittsville ; on trunks and rails, King’s Mountain, Chelsea, Que., May 22nd, 1897.1898] Macoun—Cryptogamic Flora of Ottawa. 45 299. Physcia stellaris, (L.) Very common on trunks and dead or living branches. On black ash trees in a swamp in Stewart’s Bush, April 12th, 1895 ; on dead and living trees at Rockcliffe Park, Beechwood, Ottawa East, Dow’s Swamp and Skead’s Farm, Richmond Road, and common at Britannia ; com- mon on trees in woods at Leamy’s Lake; on balsam trees at Stittsville ; on trunks and rails, King’s Mountain, Chelsea, Que., May 22nd, 1897. Var. aipolia, Nyl. Same range as the species. On the bark of trees at Ottawa, 1884 ; on a black ash trunk in a swamp west of Beechwood Cemetery ; on beech and maple trees in woods one mile south-east of Billing’s Bridge ; on trees in woods, Leamy’s Lake ; on tamarack and other trees at Stitts- ville, May 14th, 1897. 300. Physcia astroidea, (Fr.) Nyl. On old rails and trunks. On old rails near Hintonburg, April 18th, 1896 ; abundant on the upper part of a fallen hemlock near McKay’s Lake, Beechwood, Sept. 29th, 1896; also on old rails at Aylmer, Que. 301. Physcia hispida, (Schreb.) Tuckerm. On trees, but generally on boulders with us. On black ash trees in a swamp in Stewart’s Bush along the C.A.R., April 12th, 1895 > on boulders in a pasture along Brigham’s Creek, near Leamy’s Lake, May 7th, 1897. 302. Physcia obscura, (Ehrh.) Nyl. Trunks, dead wood and rocks. On the bark of white cedar in Stewart’s Bush, April 12th, 1895 ;on granite boulders, Rockcliffe Park ; on trees and limestone and granite boulders at Britannia ; common on trees and rocks at Hull and Aylmer, Que. ; on trunks in Dow’s Swamp ; and on stones in Ottawa East ; on old fence boards at Billing’s Bridge ; on trunks and boulders between Brigham’s Creek and Leamy’sThe Ottawa Naturalist. 46 [June Lake, Hull, Que.; on old boards at Stittsville ; on rocks, trunks and old rails, King’s Mountain, Chelsea, Que., May 22nd, (897. 303. Physcia setosa, (Ach.) Nyl. On rocks, and upon mosses, and trunks. On trunks along the Beaver Meadow, west of Hull, Que, April 26th, 1891; on trunks “Pine Hill,” Rockcliffe Park ; on black ash trunks, Cowley’s Farm, west of Hintonburg ; on black ash trunks amongst moss in woods north of Beechwood Cemetery ; on beech trees in woods one mile south-east of Eilling’s Bridge, on various trees in woods at Leamy’s Lake ; on trees in a swamp at Stittsville, May 14th, 1897. 304. Physcia adglutinata, (Flcerk.) Nyl. On trees and shrubs. On beech trunks at Beechwood Cemetery, April 23rd, 1892. IX. PYXINE, Fr. 305. Pyxine sorediata, Fr. On trunks in woods. On black ash in Stewart’s Bush, April 12th, 1895 ; on beech trunks, “ Pine Hill,” Rockcliffe Park ; in woods north of Beechwood Cemetery ; on ash, balsam fir and other trees in woods west of Beaver Meadow, Hull, Que.; on trees at Britannia ; on trunks in woods at Leamy’s Lake, May 7th, 1897. X. UMBILICARIA, Hoffm. 306. Umbilicaria Muhlenbergia, (Ach.) Tuckerm. On perpendicular rocks near the summit of King’s Mountain, west of Chelsea, Que., Sept., 1884; also May 22nd, 1897. 307. Umbilicaria vellea, (L.) Nyl. On the face of a perpendicular rock near the summit of King’s Mountain west of Chelsea, May 22nd, 1897. 308. Umbilicaria Dillenii, Tuckerm. On the faces of perpendicular rocks near the summit of King’s Moun- tain west of Chelsea, May 22nd, 1897. XI. STICTA, (Schreb.) Fr. 309. Sticta amplissima, (Scop.) Mass. On large trunks in old woods, not rare. Common in Rockcliffe Park and McKay’s woods, April 16th, 1891 ; in Dow’s Swamp; on rear of Skead’s Farm, Richmond road ; also on trees at Carleton Place; on trees in the swamp west of Hull Station ; on basswood trunks in woods near Hull Cemetery ; on trunks King’s Mountain and near Chelsea, May 22nd, 1897.1898] Macoun—Cryptogamic Flora of Ottawa. 47 310. Sticta pulmonaria, (L.) Ach. On large old trees in thick woods, common. Common in Rock- cliffe Park and McKay’s woods and woods north of Beechwood Qemetery, April 20th, 1891 ; on trees at Carleton Place; on trees in a swamp at Stittsville ; on trunks King’s Mountain and near Chelsea, May 22nd, 1897 ; on trees in a swamp west of Hull Station. XII. NEPHROMA, Ach. 31 x. Nephroma Helveticum, Ach. On rocks at King’s Mountain, west of Chelsea, Sep., 1884; also on rocks below the summit, May 22nd, 1897. 312. Nephroma lsevigatum, Ach, On large boulders in old woods. In woods north of the Aylmer road and west of Hull, Que., April 27th, 1895 I m McKay’s woods and in Beechwood Cemetery ; on rocks near the summit of King’s Mountain, May 22nd, 1897. 313. Nephroma parile, Nyl. On rocks at King’s Mere, west of Chelsea, Que., Sept 3rd, 18S4. XIII. PELTIGERA, (Willd.) Fee. 314 Peltigera venosa, (L.) Hoffm. On earth along the broken bank of the Lievre River at Buck- ingham, Que., May 14th. 1896. 315. Peltigera aphthosa, (L.) Hoffm. On rocks, logs and earth and among mosses in swampy woods. On earth and old logs in wet woods east of the Beaver Meadow, west of Hull, Que., April 26th, 1891 ; on damp rocks by the Lievre River, Buckingham, Que.; on dead logs at Carleton Place ; on old logs in a swamp at Stittsville, May 14th, 1897. 316. Peltigera horizontalis, (L.) Hoffm. On moist rocks amongst mosses In woods near the lake at the head of the Beaver Meadow west of Hull, Que., May i6lh, 1896. 317. Peltigera rufescens, (Neck ) Hoffm. On earth, rocks, the bases of trees and amongst moss. On rocks in Rockcliffe Park, Beechwood Cemetery, and Ottawa East on a boulder; on rocks rear of Cowley’s Farm west of Hintonburg ; on old logs Dow’s Swamp ; on earth at Britannia ; common on earth and rocks south of the Aylmer road, Hull, Que.; on earth in a swamp at Stittsville ; on rocks near summit of King’s Mountain, May 22nd 1897.[June 48 The Ottawa Naturalist. 318. Peltigera canina, (L.) Hoffm. On earth, rocks and the bases of trees in cool woods. On earth in pine woods Rockcliffe Park ; on earth Ottawa East; on earth and rocks in woods west of the Beaver Meadow, Hull, Que. ; on old logs in woods Carleton Place ; on the earth at the base of trees in woods, Leamy’s Lake; on earth in a swamp at Stittsville ; very common on earth, old wood and rocks, King’s Mountain, May 22nd, 1897. XIV. SOLORINA, Ach. 319- Solorina saccata, (L.) Ach. On calcareous earth in the damp crevices of the limestone ledges facing the Ottawa below Governor’s Bay, Rockcliffe Park, April 17th, 1895. XV. PANNARIA, Delis. 320. Pannaria lanuginosa, (Ach.) Kcetb. On limestone ledges along the cliffs of Rockcliffe Park, April 17th 1895 ; on overhanging rocks along the Beaver Meadow west of Hull, Que.; also along the Ottawa River on limestone cliffs near Tetreauville, Little Chaudiere; on limestone rocks Ottawa East; also near the Ex- perimental Farm ; very common on the faces of damp rocks King’s Mountain, May 22nd, 1897. 321. Pannaria leucosticta, Tuckerm. On trunks and rocks, rare. On baik of, balsam poplar in woods south of the Aylmer road, west of Hull, Que., April 27th 1895; on boulders Rockcliffe Park ; and on stones West End Park; on beech trunks in woods one mile south east of Billings Bridge ; on beech trunks north or Beechwood Cemetery ; on rocks King’s Mountain, May[22nd, 1897- 322. Pannaria microphylla, (Schm) Delis. Forming a thick crust on rocks. On boulders in woods north of Aylmer Road, west of Hull, Que., April 27th, 1895 > on boulders, “ Pine Hill,” Rockcliffe Park and in Beechwood Cemetery; quite common on damp boulders, King’s Mountain, May 22nd, 1897. 323. Pannaria lepidiota, Fr. On earth and amongst moss on rocks. On moss on a stone in woods, south of Aylmer Road, west of Hull, Que., April 27th, 1895. 324. Pannaria nigra, (Huds.) Nyl. On limestone rocks by the cliffs along the Ottawa, Rockcliffe Park, April 16th, 1891,; on limestone rocks in a field by the Beaver Meadow1898] Macoun—Cryptogamic Flora of Ottawa. 49 Creek, west of Hull, Que. ; on limestone rocks at Leamy’s Lake ; on limestone rocks between Aylmer and King’s Mountain, May 22nd, 1897. XVI. COLLEMA, Hoffm. 325. Collema myriococcum, Ach. Growing on moss, on limestone rocks by the Ottawa, below Governor’s Bay, Rockcliffe Park, April 16th, 1891. 326. Collema pulposum, (Bernh.) Nyl. On earth on limestone rocks “ Pine Hill,” Rockcliffe Park, April i6lh, 1896. 327. Collema crispum, Borr. On calcareous earth in the cutting for the Aylmer Railway west of Hull, Que., April 27th, 1893 ; on earth in crevices of rocks at King’s Mountain near Chelsea, Que., May 22nd, 1897. 328. Collema limosum, Ach. On calcareous earth in the cutting for the Aylmer Railway west of Hull, Que ; very rare. April 27th, 1895. 329. Collema floculosa, Nyl. On limestone rocks below Governor’s Bay, Rockcliffe Park, April 17th, 1893 ; on naked limestone rocks in woods south of the Aylmer Electric Railway, west of Hull, Que.; very rare, May 16th, 1895. 330. Collema tenax, (Ach.) Tuckerm. On calcareous earth on wet rocks in the cutting for the Aylmer Electric Railway west of Hull, Que., April 27th, 1895; on calcareous earth along the limestone ledges at Rockcliffe Park, April 12th, 1896. XVII. LEPTOGIUM, Fr. 331. Leptogium tenuissimum, (Dicks.) Koerb. On sandy earth, on old fence rails along the Richmond Road west of Hintonburg, April 18th, 1896. 332. Leptogium lacerum, (Ach.) On limestone rocks amongst moss in the cutting for the Aylmer Electric Railway, west of Hull, Que., April 27th, 1893 ; on limestone rocks by the Ottawa below Governor’s Bay, Rockcliffe Park ; on damp rocks, King’s Mountain, May 22nd, 1897. 333. Leptogium pulchellum, (Ach.) Nyl. On trees in woods, Rockcliffe Park, Sep. 16th, 1889, very rare.The Ottawa Naturalist. [June So 334. Leptogium Tremelloides (L.) Fr. On rocks and trunks ; common. On boulders and trees north of the Aylmer Road, west of Hull, Que., April 27th, 1895 j on trees *n Dow’s Swamp ; on boulders in Beechwood Cemetery; in McKay’s woods, and on “Pine Hill,” Rockcliffe Park; on old logs and rocks King’s Mountain, May 22nd, 1897. 335. Leptogium chloromelum, (Sw.) Nyl. On old rails near Aylmer and on damp rocks near the summit of King’s Mountain, west of Chelsea, May 22nd 1897. 336. Leptogium respulinum, Ach. On limestone rocks near the Ottawa below Governor’s Bay, Rock- cliffe Park, April 16th, 1891. XVIII. PLACODIUM (DC.) 337. Placodium elegans, (Link.) DC. On a large boulder in woods, Governor’s Bay, Rockcliffe Park, April 16th, 1893. 338. Placodium aurantiacum, (Lightf.) On trees and rocks; also on dead wood. On a granite boulder in woods, Governor’s Bay, Rockcliffe Park, April 17th, 1895 ; on lime- stone rocks at Britannia ; on boulders in woods west of Hull and on boulders at Leamy’s Lake, Oct. 9th, 1896. 339. Placodium cerinum, (Hedw.) Common on trees, on dead wood and mosses. On maple and poplar bark Stewart’s bush near the C. A. R. track, April 12th, 1895 ; on dead trees and living ash bark at Britannia; on poplar bark south of the Aylmer Electric Road, west of Hull, Que. ; on black ash Ottawa East; on trunks in woods at Leamy’s Lake; on poplar trees in a swamp at Stittsville ; on old rails and trunks King’s Mountain, May 22nd, 1897. 340. Placodium vitellinum, (Ebrh.) On dead wood and rocks. On old pine rails at Britannia, April 20th, 1895 ; on cedar rails Ottawa East; on boulders in pasture by Brigham’s Creek - on old rails and logs, King’s Mountain, May 22nd, 1897. 341. Placodium vitellinum, (Ehrh.) var. aurellum, Ach. On granite boulders in woods, Governor’s Bay, Rockcliffe Park, April 17th, 1895 ; on boulders in woods north of the Aylmer road west of Hull, Que.; on boulders Ottawa East; on boulders in pastures by Brigham’s Creek, May 7th, r897.1898] Macoun—Cryptogamic Flora of Ottawa. 51 XIX. LECANORA, Ach. 342. Lecanora muralis, (Schreb.) var. saxicola. Schaer. Very common on both gaanite and limestone boulders, Governor’s Bay, Rockcliffe Park, April 17th, 1895 ; quite common on boulders south of the Aylmer road and west of Brigham’s Creek, Hull, Que.; on rocks between Chelsea and King’s Mountain, May 22nd, 1897. 343. Lecanora pallida, (Schreb.) Schaer. On young pine trees Carleton Place, May 7th, 1892 ; on a pine trunk Rockcliffe Park; on trunks in woods west of Hull station, also in woods near Leamy’s Lake ; on trunks in a swamp at Stittsville; on rails and trunks, King’s Mountain, May 22nd, 1897. 344. Lecanora pallida, (Schreb.) var. cancriformis, Tuck. On living pine trees in woods near the C. P. R. bridge over the Ottawa, west of Hull, April 27th, 1895; on beech trees, Rockcliffe Park. 345. Lecanora subfusca, (L.) var. allophana, Ach. On living pine t.ees in woods near the C. P R. bridge, over the Ottawa, Hull, Que., April 27th, 1895 ; on old cedar rails in McKay’s woods and Ottawa East; an maple and beech trunks Rockcliffe Park and Beechwood; on maple trunks one mile south east of Billings Bridge; on basswood bark in Dow’s Swamp; on tre^s in a swamp west of Hull station and on boulders in a field by the Aylmer Road; on trunks in woods by Leamy’s Lake and on boulders by Brigham’s Creek; on trunks in a swamp at Stittsville; on trunks, common, King’s Mountain, May 22nd, 1897. 346. Lecanora subfusca, (Schreb.) var. coilocarpa, Ach. On beech bark in woods, Rockcliffe Park, April 15th, 1891 ; on beech bark in woods one mile south east of Billings Bridge ; on trunks on King’s Mountain, May 22nd, 1897. 347. Lecanora subfusca var. argentata, Ach. On small trees at the western base of King’s Mountain, west of Chelsea, May 22nd, 1897. 348. Lecanora Hageni, Ach. On old rails near McKay’s Lake, April 23rd, 1891 ; on cedar bark on fences, Ottawa East; on old cedar rails along the Richmond Road above Hintonburg, April 18th, 1896. 349. Lecanora atra, (Huds.) Ach. On young beech trees at Buckingham, Que., May 14th, 1896 ; on limestone shingle at Britannia, April 20th, 1895.52 The Ottawa Naturalist. [June 350. Lecanora badia, (Pers.) Ach. On limestone rocks in woods, north of the Aylmer Road, west of Hull, Que., April 27th, 1895. 351. Lecanora varia, (Ehrh.) Nyl. On bark of trees old boards and fence rails. On pine bark in woods near the C. P. R. bridge west of Hull, Que., April 27th, 1893. 352. Lecanora varia, var. symmicta, Ach. On trees and fences ; not rare. On bark of living pine trees in woods west of the Reaver Meadow, Hull, Que., April 27th, 1893. 353. Lecanora varia, var. saepincola, Fr. On the board fence in the cutting for the Aylmer Electric Railway, west of Hull, Que., April 27th, 1895 ; on old fences at Stittsville ; on old fences between Aylmer and King’s Mountain, May 22nd, 1897. 334- Lecanora pallescens, (L.) Schaer. On birch trees near Ottawa 1884 ; on trunks at the base of King’s Mountain, May 22nd, 1897. 355. Lecanora privigna, var. pruinosa, Auct. On limestone rocks, in woods, south of the Aylmer Road, west of Hull, April 27th, 1893 ; on boulders along the road and in fields, Rockcliffe Park; on limestone boulders in a pasture by Brigham’s Creek; abundant on rocks, King’s Mountain, May 22nd, 1897. XX. RINODINA, Mass. 356. Rinodina Ascociscana, Tuck. On beech trees in McKay’s woods near the Lake, April 24th 1891; on beech trees in woods one mile south-east of Billings Bridge, April 19th, 1897. 357. Rinodina sophodes, (Ach.) Nyl. On bark of young red maples in Stewart’s bush south of the C. A. R. track April 12th, 1895; very common on bark of young and old red maple trees along the lake at Britannia ; on beech trees in woods one mile south-east of Billings Bridge, April 19th, 1897. 358. Rinodina constans, Nyl. On beech trees in Beechwood Cemetery, April 20th, 1891. XXI. PERTUSARIA, DC. 339. Pertusaria multipunctata, (Turn.) Nyl. On old trees in Rockcliffe Park and Beechwood Cemetery, April 27th, 1892 ; on butternut trees along the Aylmer Road west of Hull; on trunks of the same near the entrance to Hull Roman Catholic Cemetery; on old cedar rails between Aylmer and King’s Mountain, May 22nd 1897.S3 1898] Macoun—Cryptogamic Flora of Ottawa. 360. Pertusaria communis, DC. On bark ol old trees. On maple trees in Stewart’s Bush near the CAR. track, April 12th, 1898 ; on beech trees in woods one mile south-east of Billings’ Bridge ; on old fence rails along the Richmond Road west of Hintonburgh ; on trees in woods west of Hull ; on trees in woods at Leamy’s Lake ; on trees and old logs, Aylmer and King’s Mountain. 361. Pertusaria velata, (Turn.) On an ash tree in a swamp, Britannia, April 20th, 1895 ; on beech trunks, “Pine Hill,” Rockclifife Park ; on old rails near Aylmer and at the base of King’s Mountain ; on butternut trees along the Aylmer Road west of Hull. 362. Pertusaria leioplaca (Ach.) On beech trees in woods at Buckingham, Que., May 14th, 1896. 363. Pertusaria Wulfenii, DC. On beech trees in woods, Rockcliffe Park, April 21st, 1891 ; on the base of beech trees in woods one mile south-east of Billings’ Bridge ; on beech trees in woods west of Hull Station ; also on beech trunks near Leamy’s Lake. XXII. CONOTREMA, Tuckerm. 364. Conotrema urceolatum, (Ach.) Tuckerm. On bark of bitter nut hickory in woods north ol the Aylmer Road and west of Hull, Oct. 4th, 1884. XXIII. GYALECTEA, (Ach.) 365. Gyalectea lutea, (Dicks.) Tuckerm. On the bark of hemlock trees in woods north of Beechwood Cemetery, April 27th, 1892. XXIV. THELOTREMA, (Ach.) 366. Thelotrema lepadinum, Ach. On black ash trees in a swamp west of the entrance to Beechwood Cemetery, Oct. 16th, 1884.54 The Ottawa Naturalist. [August XXV. STEREOCAULON, Schreb. 367. Stereocaulon paschale, (Ach.) Abundant on damp shingle along the C. P. R. west of Britannia, April 20th, 1895 ; on boulders in pastures, Ottawa East, and almost everywhere around Ottawa ; on boulders around Hull, quite common ; also on boulders near the Catholic Cemetery, Hull ; on boulders in fields at Stittsville ; on boulders at King’s Mountain. XXVI. CLADONIA, Hoffm. 368. Cladonia alcicornis, Floerk. On limestone boulders, in shade, south of the Aylmer Electric Railway and west of the C. P. R., Hull, Que., April 27th, 1895 ; on earth on stones along Brigham’s Creek ; on limestone rocks between Aylmer and King’s Mountain. 369. Cladonia mitrula, Tuckerm. On earth at the base of pine stumps west of Britannia, Oct. nth, 1890. 370. Cladonia cariosa, Floerk. On earth on stones by a fence, Ottawa East, April 14th, 1897 ; on earth at the base of a stump in woods, Leamy’s Lake ; on old rails near Aylmer. 371. Cladonia pyxidata, Fr. On earth, rocks, old logs and old fence rails. Old rails, Stewart’s Bush, April 12th, 1895 ; on boulders, earth and old stumps, Rockcliffe Park ; common on earth and pine stumps at Britannia ; on old pine logs and limestone rocks, Aylmer Road, Hull, Que. ; on boulders, borders of Dow’s Swamp ; on boulders, Ottawa East and Billings’ Bridge ; on boulders along Brigham’s Creek ; on old rails and stones near Aylmer. 372. Cladonia fimbriata, (L.) Fr. On pine stumps, “Pine Hill,” Rockcliffe Park, April 14th, 1895 ; on cedar stumps in Dow’s Swamp ; and also in a swamp east of Beech- wood Cemetery ;on the base of stumps in woods west of Hull Station ; on the base of stumps in a swamp at Stittsville; on old rails near Aylmer and King’s Mountain. 373. Cladonia fimbriata var. tubseformis, Fr. On pine stumps and old pine logs at Rockcliffe Park, April 17th, 1895 ; on pine logs and stumps at Britannia ; on rotten pine logs and stumps south of the Aylmer Road, west of Hull, Que. ; on old logs in Dow’s Swamp ; on dead wood in woods near Leamy’s Lake ; on old logs in a swamp at Stittsville ; on old rails near Aylmer and King’s Mountain.1898] Macoun—Cryptogamic Flora of Ottawa. 55 374. Cladonia gracilis, var. verticillata, Flcerk. Quite common on earth at Britannia, along the Can. Pac. Railway we>t of the station, April 20th, 1895 1 on boulders in woods, Rockcliffe Park ; on earth in woods at Leamy’s Lake. 375. Cladonia gracilis, var. hybrida, Schaer. On pine stumps and earth ; common. Pine stumps, Rockcliffe Park, April 17th, 1895 ; on earth and pine stumps at Britannia ; on old pine logs and stumps at Slittsville and Carleton Place, and on the same at Aylmer ; on earth in woods, Leamy’s Lake ; on old rails and logs near Aylmer. 376. Cladonia gracilis, var. elongata, Fr On old pine logs in a swamp at Stittsville, May 14th, 1897. 377- Cladonia squamosa, Hoffm. On old pine stumps at Britannia, April 20th, 1895 ; on the base of a stump in woods, Leamy’s Lake. 378. Cladonia furcata, var. crispata, Flcerk. A small clump on a pine stump a mile west ot Britannia, April 20th, 1895 1 on °ld pine logs south of Aylmer Road, west of Hull ; on damp earth in woods along the cliff, Rockcliffe Park, May 7th, 1896. 379. Cladonia furcata, var. racemosa, Floerk. On old logs in woods in Rockcliffe Park ; also on pine stumps at Britannia, April 20th, 1895. 380. Cladonia rangiferina, (L.) Hoffm. On pine stumps in Rockcliffe Park, April 17th, 1895; on earth and pine stumps at Britannia ; on old logs and stumps in a swamp at Stittsville ; on old stumps at Carleton Place ; on old logs and stumps in a swamp east of Beechwood Cemetery ; on old pine stumps and logs, A>liner Road, west of Hull : on old logs and earth, King’s Mountain. 381. Cladonia rangiferina, var. alpestris, L. On rotten pine stumps at Britannia, April 20th, T895. 382. Cladonia uncialis, (L.) Fr. On rocks on the island at Gilmour’s Mill, Chelsea, Que., May 15th, r8g6 ; on the summit of King’s Mountain. 383. Cladonia delicata, (Ehrh.) Floerk. On rotten pine stumps at Britannia, April 20th, T895 : not uncom- mon on old pine logs in woods close to the Can. Pac. Railway bridge west of Hull ; on the base ot stumps in woods at Buckingham, Que. ; on an old pine log in a swamp at Stittsville. 384. Cladonia deformis, (L.) Hoffm. On a pine slump at Britannia ; very rare. April 20th, 1895 ; on an old stump in a swamp at Stu sville ; in a swamp near Lake Flora, Hull, Que. ; on earth slopes 1 f King’s Mountain.56 The Ottawa Naturalist. [August 385. Cladonia digitata, (L.) Hoffm. f On an old pine stump about a mile west of Britannia, April 20th, 1895 ; on old pine logs south of the Aylmer Road, west of Hull. 386. Cladonia cristatella, Tuckerm. On cedar rails and pine stumps and old logs in Stewart’s Bush, April 12th, 1895 ; on old pine stumps, Rockcliffe Park ; very common on pine stumps at Britannia ; on dead pine logs and stumps at Aylmer, Que. ; on logs in a swamp east ol Belleville; on stumps and old logs at Stitlsville ; on logs and stones in woods near Leamy’s Lake ; on old stumps and pine logs near Aylmer. XXVII. BHJOMYCES, (Pers.) DC. 387. Baeomyces aeruginosus, (Scop.) DC. On dead pine wood in cool woods. In woods at Meeche’s Lake, Que., Sept. 23rd, 1893 ; in woods at Buckingham, Que., May 14th, 1896. XXVIII. BIATORA, Fr. 388. Biatora rufo-nigra, Tuckerm. On limestone rocks in Rockcliffe Park, April 17th, 1895. 389. Biatora granulosa, (Ehrh.) Pcetsch. On carbonized wood on dead pine stumps one mile above Britan- nia, April 20th, 1895 ; on burnt logs, King’s Mountain. 390. Biatora rubella, (Ehrh.) Rabenh. On bark ol maple and ash trees at Stewart’s Bush near the Can. Atlantic Railway, April 12th, 1895 > on ash trees in a swamp at Britan- nia ; on black ash, white cedar and maple, Aylmer Road, west of Hull; also on oak bark in Rockcliffe Park ; on trees in a swamp at Stittsville; on trees in woods at Leamy’s Lake, near Hull ; on black ash in a swamp near Hintonburgh, April 18th, 1896. 391. Biatora fusco-rubella, (Hoffm.) Near the base of black ash trees in Stewart’s Bush near Canada Atlantic Railway, April 12th, 1895 ; on balsam poplar bark in woods south of the Aylmer Road west of Hull ; on beech trees in woods at Buckingham, Que., May 14th, 1896 ; on black ash east of Beechwood Cemetery, and west of Hull Station ; on the base of young maples in woods, Rideau Park, April 19th, 1897. 392. Biatora suffusa, Fr. On the base of black ash trees in Stewart’s Bush near Canada Atlantic Railway, April 12th, 1895 ; on bark of black ash, Aylmer Road, west of Hull ; on basswood bark, Dow’s Swamp ; on beech trees in woods near Leamy’s Lake ; on black ash bark in the swamp west of Hull Station, Que., April 24th, 1897.1898] Macoun—Cryptogamic Flora of Ottawa. 57 393 Biatora Schweinitzii, Fr. On spruce, pine and beech trees in woods at Rockcliffe Park, April 17th, 1893 ; on white cedar in Dow’s swamp ; on old fence rails along the Richmond Road west of Hintonburgh, April 18th, 1896 ; on cedar bark in a swamp at Stittsville ; on spruce trees in woods west of Hull, Que., May 7th, 1892. 394. Biatora sanguina-atra, Fr. On moss on the base of trees in Dow’s Swamp; May 2nd, 1896 ; on earth at the base of trees along the cliff in Rockcliffe Park, April 22nd, 1896; on moss in woods west of the Beaver Meadow, Hull, Que., Oct. 20th, 1884. 395. Biatora varians, Fr. On bark of young maples at Casselman ; and at Aylmer, Que., May 5th, (891 ; on alder bark in Dow’s Swamp, May 2nd, 1892. 396. Biatora oxyspora, (Tul.) On Parmelia Borreri in McKay’s Woods, near the Lake, April 23rd, 1891. 397. Biatora Laureri, (Hepp.) On the bark of dead and living beech trees in woods near McKay’s Lake ; on beech trunks, “Pine Hill,” Rockcliffe Park, April 16th, 1896. 398. Biatora sphaeroides, (Dicks.) On roots of trees at Ottawa, 1884 ; on the bases of trees in woods at Carleton Place, May t2th, 1892 ; on moss on rock at Rockcliffe Park, May 7th, 1896, 399. Biatora hypnophiba, Turn. On moss on rocks or rails. On moss on damp rocks, Rockcliffe Park, April 16th, 1891 ; also on moss on an old log in Beechwood Cemetery, April 14th, 1896. 400. Biatora Macounii, Eckfeldt. (N. sp.) On granite boulders in woods at Rockcliffe Park, April 17th, 1895 ; also on boulders in woods south of the Aylmer Road, Hull, Que., April 27th, 1895. XXIX. HETEROTH ECIUM, Flot. 401. Heterothecium pezizoideum, (Ach.) Flot. On moss on the base of a tree at Carleton Place, Oct. 21st, 1891. XXX. BUELLIA, De Not. 402. Buellia parasema, Ach. Not uncommon on the bark of growing pine trees. In McKay’s Woods and “Pine Hill,” Rockcliffe Park, April 20th, 1891 ; on young58 The Ottawa Naturalist. [August pines, along the Ottawa River west of Hull, Que. ; on pines, at King’s Mountain, near Chelsea, Que; on ash trees in a swamp north of Beech- wood Cemetery, April 27th, 1892 ; on trees in a swamp at Stittsville, May 14th, 1897. 403. Buellia myriocarpa, (DC.) On old fence rails ; doubtless common. On stones in fields near Britannia, April 20th, 1895 ; on old fence rails in McKay’s Woods, quite common. April 23rd, 1891 ; on old rails at Stittsville, May 14th, 1897 ; also at Buckingham, Que ; on old fence rails near Hintonburgh, April 18th, 1896. 404. Buellia papillata, (Sommerf.) Tuck. On moss on old fence rails at Carleton Place, Oct. nth, 1889. 405. Buellia Pertusaricola, Willey. On the bark of aspen poplar, but parsitic on Pertusaria communis n woods by the Beaver Meadow near Hull, Que., Oct. 16th, 1889. XXXI. GRAPHIS, Ach. 406. Graphis scripta, (Ach.) Very commom on trunks of all kinds in woods around Ottawa. On black cherry, beech, maple and oak bark at Aylmer, May 6th, 1891 ; on butternut, birch and beech at Hull, Que., April 28th, 1891 ; on maple, basswood and ironwood in Beechwood Cemetery, April 26th, 1892 ; on balsam fir at Stittsville, May 14th, 1897 ; on blue beech at Leamy’s Lake, Hull, Que. ; also abundant on trees at King’s Moun- tain, Chelsea, Que., May 22nd, 1897 ; on alder trunks in Dow’s Swamp ; also in Rideau Park, April 19th, 1897. 407. Graphis recta, Humb. Not uncommon on the bark of yellow and canoe birch in woods. In woods along the Beaver Meadow, Hull, Que., May 16th, 1896 ; also on the same at Buckingham, Que., May 14th, 1896. XXXII. OPEGRAPHA, Humboldt. 408. Opegrapha varia, Pers. On butternut bark in woods along the Aylmer Road west of Hull, Que., April 23rd, 1891 ; also on cedar bark at King’s Mountain, near Chelsea, Que., May 22nd, 1897 ; on cedar bark in Dow’s Swamp, May 2nd, 1897. XXXIII. ARTHONIA, Ach. 409. Arthonia astroidea, Ach. On bark, quite common in woods around Ottawa. On bark of Juglans cinerea in woods along the Aylmer Road west of Hull, Que., April 28th, 1891 ; on Abies balsamea and young pines in Dow’s Swamp, April 23rd, 1892 : in woods near Aylmer, Que.1898] Macoun—Cryptogamic Flora of Ottawa. 59 410. Arthonia Swartziana, Acb. Not uncommon on oak and ironwood trees near Aylmer, Que., May 6th, 1891 ; on maple trees at King's Mountain, near Chelsea, Que., May 22nd, 1897. 411- Arthonia lecideella, Nyl. On various young trees and shrubs. On Acer spicatum at Aylmer, Que., May 6th, 1891 ; quite common on young Acer rubrum in Stewart’s Bu^h and Rideau Park ; on young maple trees at Bucking- ham, Que., May 14th, 1896 ; on young red maples near Hintonburgh, April 18 th, 1896. 412. Arthonia spectabilis, Flot. On thick bark of old trees ; common, on basswood and sugar maple bark at Carleton place, May 7th, 1882 ; on bark of Carya amara in woods west of Hull, Que., September 21st, 1889 ; on old maples at Casselman ; on Juglans cinerea at Aylmer, Que., May 6th, 1891 ; on maple trees in Rideau Park, near Billings’ Bridge, April 19th, 1897. 413. Arthonia tcediosa, Nyl. On young beech and maples, at Buckingham, Que., May 14th, 1896. 414. Arthonia dispersa, (Schrad.) Nyl. On bark of young sugar maples at Ottawa. Collected in Beech- wood Cemetery, April 16th, 1892. XXXIV. MYCOPORUM, (Flot.) N>1. 415. Mycoporum pycnocarpum, Nyl. On oak bark in woods by the lake near Aylmer, May 6th, 1891 ; also on bark of young Acer rubum, at Britannia, April 20th, 1895. XXXV. CONIOCYBE, Ach. 416. Coniocybe furfuracea, (L.) Ach. On the roots of trees in woods. On earth on pine roots in woods north of Ironsides, Que., Sept. 16th, 1891 ; on roots of trees in Dow’s Swamp, Oct. 12th, 1887. XXXVI. CALICIUM, Pers. 417. Calicium subtile, Fr. On dead cedar stump in Dow’s Swamp, Sept. 26th, 1891. XXXVII. ENDOCARPON, Hedw. 418. Endocarpum, fluviatite, DC. On stones in the Beaver Meadow Brook below the C. P. Ry. bridge near Hull Station, Que., April 24th, 1897 ; on rocks in a brook6o The Ottawa Naturalist. [August at Meeche’s Lake, near Chelsea, Que., Sept. 23rd, 1893 ; on limestone rocks, close to the Ottawa River, Gatineau Ferry, Rockcliffe, Nov. 12 th, 1896. XXXVIII. TRYPETHELIUM, Spreng. 419. Trypethelium virens, Tuck. On beech trunks on “Pine Hill” in Rockcliffe Park, and Beech- wood Cemetery, April 26th, 1891 ; on beech trees at Casselman, and at King’s Mountain near Chelsea, Que., May 22nd, 1897. XXXIX. PYRENULA, (Ach.) 420. Pyrenula punctiformis, (Ach.) On bark of trees at Carleton Place, May 12th, 1892 ; on maple trees near Hintonburgh, April 18th, 1896 ; on trunks of sugar maple, “ Pine Hill,” Rockcliffe Park, April 16th, 1896. 421. Pyrenula gemmata, (Ach.) Op old maple trunks in McKay’s Woods near the lake, April 16th, 1891. 422. Pyrenula mamillana, (Ach.) On bark of maple trees in old woods, Carleton Place, May 12th, 1892. 423. Pyrenula nitida, Ach. Quite common on beech trunks around Ottawa. On beech trees in Rockcliffe Park and McKay’s Woods, April 26th, 1891 ; on beech trees at Moose Creek and Casselman, Sept. 6th, 1891 ; on trees at Aylmer, Que., May 6th, 1891. 424. Pyrenula thelena, Ach. On canoe birch in woods along the Beaver Meadow, Hull, Que. April 24th, 1897. 425. Pyrenula fallaciea- On bark of young maples at Chelsea, Que., May 15th, 1891. 426. Pyrenula cine/t^^^i/ On young maple trees at Ottawa, May 7th, 1892.S \ ,v / > , ' -. ■?> • ; §4444 ^-v 4,4 a, 4.4," . ■:■ H ,-t-r,V;'. ;v :-*’'-4;^ '-';>. 4- ‘ Y ■>"' IS 1 6:J£-v' «frX.xpi ' ' t,-;v V,•:.•*, ,; o' ' - ••-' •• • • '*-•) .1 , P’Y. III ; ;:j - ■- - - ' • Sffi Si# .'vV-v.Cv-i. 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