326. O. anomalum, Hedw.

On limestone rocks along the Ottawa at Rockcliffe and Hull, Que.; on perpendicular rock, Foster's Flats, Niagara River, 1901. (Macoun.) On rocks, Skagway, Alaska, in fine fruit, June 29th, 1899; on rock at Dawson, Yukon. (Williams.)

327. C. Blyttii, Schimp.

O.Pylaisii, Brid; Kindb., Bryol. N.Am. & Eur. 301.

On rocks near the sea, Newfoundland; L'Anse-au-Clair, Labrador. (Waghorne.)

Subsp. arcticum, Schimp.

On rocks, Kadiak Island, Alaska, and St. Paul Island, Behring Sea, 1891. (J. M. Macoun.)

Subsp. microblephare, Schimp.; Kindb., Bryol. N. Am. & Eur. 302.

St. Paul Island, Behring Sea, 1891. (Dr. Merriam.)

It is more than probable that the present subspecies and the preceding are the same, but which is the correct one we are not prepared to say.

1023. O. Kingii, Lesq.; Lesq. & James, Mosses of N. America,

170. 0. Macounii, Aust., Bull. Torr. Bot. Club, Vol. VI, 343.

On rocks, Deer Park, Lower Arrow Lake, Columbia River. Referred to 0. Iaevigatum in Part VI., p. 87; on rocks, Kicking Horse Pass, Rocky Mountains, B.C., Aug. 13th, 1890. (Macoun.) On rocks at Dawson, Yukon, 1899. (Williams.)

330. O. cupulatum, Hoffm.

On limestone rocks, Rockcliffe Park, Ottawa, Ont., 1891; on rocks, Moose Mountain, Elbow River, Rocky Mountains, Alta., 1897. (Macoun.)

1024. O. Porteri, Aust., Bull. Torr. Bot. Club, Vol. VI., 341.

On dry limestone rock, by the stairs leading down the cliff to Foster's Flats, Niagara Falls, Ont., May 16th, 1901. (Macoun)

1025. O. Lescurii, Aust.

0. cupulatum, Hoffm. var. minus, Sulliv.; Cat. Can, Musci,

87.

On dry rocks, Deer Park, Lower Arrow Lake, Columbia River, B.C., June 7th, 1890. (Macoun)

1026. O. Douglasii, Duby.; Lesq. & James, Mosses of N.

America, 167.

On rocks at Kicking Horse Lake, Rocky Mountains, July 29th, 1885; on rocks, mountain slopes at Spence's bridge, B.C., May 28th, 1889. (Macoun.) Referred to 0. cupulatum in Part VI., p. 87.

336. O. rupestre, Schleich.

On rocks in a ravine at the Big Intervale, Margaree, Cape Breton Island, N.S., 1898; on rocks, Moose Mountain, Elbow River, Rocky Mountains, 1897. (Macoun.) Lake Lindeman, Yukon, 1899. (Williams.)

337. O. affine, Schrad.

On trees at Baddeck, Cape Breton Island, N.S., July, 1898. (Macoun)

Subsp. fastigiatum, Bruch.

Leaves shorter-acuminate and less papillose than in 0. affine. capsule suboval; calyptra nearly glabrous. Tufts usually pul-vinate and about I cm. high. Habit of 0. pumilum. On trees in woods, Big Intervale, Margaree, Cape Breton Island, N.S., July 16th, 1898. (Macoun)

338. O. alpestre, Hornsch.

On rocks, Moose Mountain, Elbow River, Rocky Mountains, Alta., alt. 6500, July 3rd, 1897. (Macoun.) On rock at Lake Marsh and Dawson, Yukon. (Williams.)

339. O. speciosum, Nees.

On trees and old rails at Brighton and Seymour, Northumberland Co., Ont., 1893. (Macoun.) On trees at Edmonton, Ont. (Jas. White.) On cotton wood at Skagway, Alaska, 1899. (Williams.)

343. O. Ohioense, Sulliv. & Lesq.

On poplar and birch trees at Edmonton, Ont. (Jas. White.) On old fence rails at Brighton, Northumberland Co., Ont., 1893; on trunks, Algonquin Park, Ont., June, 1900 (Macoun.)

344. O. Schimperi, Hamm.

On trees at Sandwich, Essex Co., Ont., May 24th, 1892; on trees in sandy woods, Pelee Point, Essex Co., May 27th, 1901 (Macoun.) On poplar trees at Brampton, Ont., June 23rd, 1892. (Thos. Walker.)

348. O consimile, Mitt.

On rocks near the sea, Victoria Arm, Victoria, Vancouver, Island, May 31st, 1893, (Macoun.)

Subsp. anomaloides, Kindb.

Capsule less exserted than in the species; cilia shorter than the teeth. Stem taller.

On rocks in woods at Banff; on damp rocks, Kananaskis Falls, and east end of Devil's Lake, all referred to 0. anomalum in Part VI., p. 86.

350. O. Roellii, Venturi.

On rocks, Moose Mountain, Elbow River, Rocky Mountains, Alta., July, 1897. (Macoun)

351. O. psilothecium, C. M. & Kindb.

On trees at Ottawa and on old fence rails at Carleton Place, Carleton Co., Ont. (Macoun.)

356. O. pulchellum, Brunton, subsp. ulotaeforme, Ren. & Card.; Kindb., Bryol. N. Am. & Eur. 3C9.

Leaves distinctly crisped. Peristome pale.

On trees at New Westminster Junction, B.C., April 26th, 1889; also on Cedar Hill, near Victoria, Vancouver Island, May, 1887. Referred in Part VI., p. 91, to 0. pulchellum.

1027. O. Winteri, Schimp.

On Spiraea discolor at Victoria, and on trees, Burnside Road and Parson's Mountain, near Esquimault, Vancouver Island, May, 1893. (Macoun)

358. O. obtusifolium, Schrad.

On trees at Edmonton, Ont. (Jas. White.) On poplar trees,

Big Intervale, Margaree, Cape Breton Island, N.S., 1898; on

Negundo aceroides at Old Wives' Creek, Assa., 1895; on balsam poplar, Jumping Pound Creek, Rocky Mountains, Alta., 1897.

Macoun) On cottonwood at Skagway, Alaska, 1899. (Williams.)

359. O. Jamesianum, Sulliv.

On rocks, Crow's Nest Pass, Rocky Mountains, Alta,, Aug. 3rd, 1897. (Macoun.)

360. O. papillosum, Hampe; Kindb., Bryol. N. Am. & Eur. 304.

All references in Part VI.,p, 92 to 0. Lyellii and varieties belong here.

Subsp. strictum, Venturi.

Leaves dark green, shorter, appressed when dry. On trees on Sea's Farm, near Victoria, Vancouver Island, May 8th, 1893. (Macoun)

1028. O. lyellioides, Kindb., Revue Bryol. 1896.

Leaves long as in 0. papillosum, nearly flat or undulate at the borders, faintly papillose, not appressed when dry; the upper crisped. Capsule narrow-cylindric, pale brown and nearly wholly exserted, pedicel somewhat long. Tufts dark green, blackish below, somewhat tall.

On trees at Comox, Vancouver Island, May 3rd, 1887. (Macoun.)

361. O, Canadense, Bruch & Schimp.

The Ottawa specimens of this species were placed in Pt. VI. under 0. Schimperi, but were changed to 0. Canadense by Mrs. E. G. Britton when monographing the genus some years since.

1029. O. Venturi, Kindb.

On cedar rails at Brighton, Northumberland Co., Ont., Oct. 4th, 1893. (Macoun)

1030. O. subsordidum, Kindb. (N. Sp.)

On rocks, Moose Mountain, Elbow River, Rocky Mountains, Alta., June 30th, 1897. (Macoun.)

1031. O. gymnostomum, Bruch.

On trees, Newfoundland. (Waghorne.)

1032. O. Bolanderi, Sulliv.; Lesq. & James, Mosses of N.

America, 168.

On rocks along Bragg's Creek, Rocky Mountains, Alta., July 9th, 1897. (Macoun.)

1033. O. Watsoni, James; Lesq. & James, Mosses of N.

America, 168.

On rocks, Moose Mountain, Elbow River, Rocky Mountains, Alta., July, 1897. (Macoun.)

NOTE.

Attention may be called here to two very valuable papers on the preceding genus written by Mrs. E. G. Britton. These papers were published in the Bulletin Torrey Botanical Club, Vol. XX., pp. 393-405, 1893, and Vol. XXI, pp. 1-15, 1894. They are important contributions to a difficult subject but a number of questions were left open that if now settled would add immensely to their value.

The same critical writer in Vol. XXII., pp. 452-458 of the Torrey Bulletin, discusses the genus Leersia (Encalypta) and more particularly the species, E. Macounii, Austin, and E. ciliata,, Hedw. Without entering into the controversy I may say that before Austin described E. Macounii I thought it was a young state of E. ciliata. After many years in 1887 I sent specimens collected at Wellington mine near Nanaimo to Dr. Kindberg, and these he named E. Macounii, and later, eastern specimens were sent him, all of which he pronounced E. Macounii. At the date of the publication of Part VI. of my Catalogue of Canadian Plants, in 1892, he decided that up to that time he had seen no true E. ciliata from America,

In the article cited Mrs. Britton takes the ground that our eastern Encalypta which Kindberg has referred to E. Macounii is identical with authentic specimens of E. ciliata received from Europe, cited and examined by Limpricht.

Dr. Kindberg in European and North American Bryineae, published in 1897, seems to stand by what he wrote in 1892. In giving the range of E. Macomiii and E. ciliata on page 297 of the work referred to he credits E. Macounii to both Europe and America, while E. ciliata is only cited from Europe and Greenland.

Without prejudice I may observe that from the standpoint of a layman we in America have been making two species out of one while our friends in Europe were making one species out cf two.