(142.) D. capillaceum, Bruch & Schimp. . Lesq. & James, Mosses of N. America, 93; Canadian Musci, No. 57.

Didymodon capillaceum, Drumm. Musc. Bor. - Am., No. 122.

D. capillaceum var. foliis brevioribus, Drumm. Musc. Bor. - Am., No. 123.

Moist banks of rivers frequent, (122); upon "Limestone Rocks," about Lake Winnipeg (123). (Drummond.) Nottingham Island, Hudson Strait. (R. Bell.) Tattagouche Falls. N.B. (Fowler's Cat.) Long Rapids, Queen's Co., N.B. (J. Moser.) Kakabeka Falls, west of Lake Superior. (Mrs. E. G. Britton.) Very abundant in crevices of rocks and earth along the banks of all rocky forest streams throughout Canada. Jupiter River, Anticosti; Madaline River, Gaspé Co., Que.; Niagara Falls, Owen Sound, Port Stanley, Lake Nipissing, Lake Nepigon, and Lake Superior, Ont.; Lake Winnipegoosis, Man.; Fort Assiniboine, Athabasca River, N.W.T.; Morley, Banff, Silver City, and Hector, Rocky Mountains; Donald, Columbia Valley, and Roger's Pass, Selkirk Mountains; Revelstoke, Leer Park, and Sproat, Columbia River, B.C.; Mount Benson, Vancouver Island. (Macoun.) Mount Queest, Gold Range, B.C., and along the Clearwater River, lat. 57°, N.W.T. (J. M. Macoun.) Jakobshavn, Greenland. (B. Brown.) Kotzebue Sound and Nulato. (Roth. Alask.)

(143.) D. inclinatum, Bruch & Schimp.; Lesq. & James, Mosses of North America, 94; Canadian Musci, No. 58.

Didymodon inclinatum, Drumm. Musc. Bor. - Am., No. 124.

Lead Islands, Labrador. (J. A. Allen.) Peat bogs, Salt Lake and Jupiter River, Anticosti; St. Anne des Monts River, Gaspé Co., Que.; crevices of damp rocks, Lake Nepigon; north-east shore of Lake Superior, 25 miles above Michipicoten; on limestone rocks opposite Hudson Hope, Peace River, lat. 56°; wet banks, Morley, and crevices of rocks, Silver City and Hector, Rocky Mountains. (Macoun.) Moist alpine situations. (Drummond.) Greenland. (Fl. Gr.)

(144.) D. Macounii, C.M. & Kindb. (n. sp.); Canadian Musci, No. 490.

Tufts dusky green, radiculose below. Stem 2-3 cm. high. Leaves patent or subfalcate, from a short, suddenly narrowed, sheathing base, entire or with a few small teeth at the apex; cells short subquadrate: costa subpercurrent. Barren.

Avery distinct and peculiar species; our other species have very much longer leaves with a long-excurrent costa.

In habit it is like Leptotrichum flexicaule var. densum growing in very close compact little tufts amongst other mosses on banks subject to inundation. Mouth of the Illicillewaet Canon, and on left bank of the Columbia at a point of rocks one and a half miles above Revelstoke, B.C., May 18th, 1890. (Macoun.)