Nearly allied to the European B. revoluta, Schrad., but clearly distinct in the always shorter, and less obtuse leaves.

On dry rocks at the Deer Park, Lower Arrow Lake, Columbia River, B.C., June 11th, 1890. (Macoun.)

(196.) B. (Trichostomum) nitidum, (Lindb.) Jur.

On wet earth at Hector, Rocky Mountains, August 14th, 1890. (Macoun.).

(197.) B. gracilis, Schwaegr.; Lesq. & James, Mosses of N. America, 127.

On sandstone rocks along the Peace River, below Dunvegan, and within the Rocky Mountains along that river, lat. 56" 12'. (Macoun.)

WACOUN.]

(198.) B. subgracilis, C. M. & Kindb. (n. sp.)

Densely tufted. Plants small, about 0.6 cm. high, green above, red-brown below, nearly simple. Leaves when dry subcrispate, when moistened squarrose, curved from the ovate base, narrow, long-subulate, nearly smooth; borders reflexed nearly all around; lower basal cells rectangular, more pellucid than the other; costa reddish, percurrent or short-excurrent. Inner perichetial leaves broad, blunt with a long-excurrent costa, the other acuminate, all faintly crenulate. Capsule oblong-cylindric, red-brown, longer than the subulate oblique beak; pedicel red. Dioecious. Allied to Barbula gracilis.

On rocks at Yale, B.C., May 17th, 1889. (Macoun.)

(199.) B. subicmadophila, C. M. & Kindb. (n. sp.)

B. gracilis, var. squarrulosa, Kindb., Bull. Torr. Bot. Club, Vol. XVII. 89.

Laxly tufted. Plants about 1 cm. high, pale brown, nearly simple. Leaves when dry loosely appressed, when moistened subquarrose or patent, nearly straight, short, ovate-lanceolate acute, faintly papillose; borders slightly reflexed at the base, inflexed at the upper part, papillose-crenulate; cells nearly uniform, roundish or subquadrate, the apical often larger and pellucid; costa pale, percurrent. Perichetial leaves from a short ovate base long-acuminate sublinear; costa dark-brown, long-excurrent, filling nearly the whole acumen. Capsule oblong-cylindric, finally blackish; pedicel dark-brown. Dioecious.

Habit of Barbula fallax or B. gracilis, but differing at once in the leaf-borders being scarcely reflexed. In the European Barbula icmadophila, Bryol., Europ., the leaves are smooth, and the upper furnished with a long-excurrent costa.

On dry rocks, but which are covered at high water, at Yale, B.C., May 17th, 1875. (Macoun,)

(200.) B. fallax, Hedw.; Lesq. & James, Mosses of N. America, 121.

Tortula fallax, Drumm. Musc. Bor. - Am. No. 139. Dicranum pellucidum, Drumm. Musc. Bor. - Am., No. 108.

Banks of rivers near the Rocky Mountains; apparently rare. Rocks of Portage River near the Columbia River. (Drummond.) Bass River, Kent Co., N.B. (Fowler's Cat.) On earth at Owen Sound, Ont., 1874; on earth at the base of trees, Comox, Vancouver Island; on sand along Ste. Anne des Monts River, Graspé, Que. (Macoun.) Jakobshavn, Greenland. (R. Brown.)

(201.) B. recurvifolia, Schimp.; Lesq. & James, Mosses of N. America, 122.

On rocks near Lake La Mab, North Hastings, Ont., 15th August, 1874. (Macoun.) Niagara Falls. (Austin.)

(202.) B. sparsitiens, C. M. & Kindb. (n. sp.)

Loosely tufted. Plants small, 0.5-1 cm. high, green above, ferru-gineous below, nearly simple. Leaves small, when dry incurved, when moistened subquarrose, arcuate, ovate-lanceolate, distinctly papillose; borders reflexed nearly all around; lower basal cells rectangular, hyaline; costa pale, rough at back, percurrent. Inner perichetial leaves shorter than the outer; costa not or very short-excurrent. Capsule small, oblong-cylindric, reddish, longer than the oblique beak; peristome and pedicel red. Dioecious. Allied to Barbula fallax, but differing principally in the peristomial teeth, sproading, loosely and not spirally twisted.

On earth along the west side of the Columbia River, at Revelstoke, B.C. May 3rd, 1890. (Macoun.)

(203.) B. melanocarpa, C. M. & Kindb. (n. sp.)

Laxly tufted. Fertile stem nearly simple, about 1/5 cm. high, the barren branching, doubly higher. Leaves when dry appressed, not twisted, when moistened open, olive-green, short ovate-lanceolate acute, slightly papillose; borders reflexed below the middle; cells nearly uniform, roundish or subquadrate; costa brown, short-excur-rent. Perichetial leaves from the ovate-oblong base long-acuminate, costa filling the whole linear acumen. Capsule oblong-cylindric straight, finally blackish, obliquely short-beaked; annulus not distinct; pedicel red. Dioecious. Allied to Barbula subicmadophila.

On rocks along the Fraser, close to the water at Yale, B.C., May 18th, 1881. (Macoun.)

(204.) B. rigidula, Schimp.; Lesq. & James, Mosses of N. America, 123.

Didymodon rigidulum Drumm. Musc. Bor. - Am., 121.

On rocks amongst the Rocky Mountains; rare. (Drummond.) On the roots of trees close to the water, west side of Colpoy's Bay, Georgian Bay, Lake Huron; and on earth at Owen Sound, Ont. (Macoun.) Greenland. (Fl. Gr.)

(205.) B. spadicea, Mitt.; Braithw. British Moss-Flora, 266.

B. rigidula, Canadian Musci, No. 412.

Differing from B. rigidula in the leaves being more curved, and broader pointed, the costa distinct to the apex; from B. fallax in the scarcely twisted peristome. On earth by a brook at Lytton, B.C., April 17th, 1889. (Macoun.)

(206.) B. unguiculata, Hedw.; Lesq. & James, Mosses of N. America, 120; Canadian Musci, No. 73.

Tortula unguiculata, Drumm. Musc. Bor. - Am., No. 140.

In Upper Canada; and about Carlton House, etc. (Drummond.) Common on earth at Bass River, Kent Co., N.B. (Fowler's Cat.) Pictou, N.S. (McKay.) Tay, York Co. and Canaan Forks, Queen's Co., N.B. (J. Moser.) Very common on the borders of old roads in and around Ottawa, Belleville and Owen Sound, Ont.; on earth along old roads at Revelstoke on the Columbia River, and at Cache Creek, B.C. (Macoun.) Very common in sandy soil at London, Ont (J. Dearness.)