(560.) T. megapolitana, Hedw.; Lesq. & James, Mosses of N. America, 254; Canadian Musci, No. 212; Drumm. Musc. Bor. - Am., 273.

Moist shady rocks; common. (Drummond.) At the bases of trees in swamps, Ste. Anne des Monts River, Gaspé Co., Que.; Dow's swamp, Ottawa; abundant at Belleville and Owen Sound, also at Leamington, Ont.; crevices of rocks at Morley and Devil's Lake, Rocky Mountains; also along Lesser Slave Lake, Athabasca; vicinity of Victoria, Vancouver Island. (Macoun.) Athabasca River at the forks of the Clearwater. (J. M. Macoun.) London, Ont. (J. Dearness.) Vancouver Island and Galton Mountains, B.C. (Lyall.) Saskatchewan River. (Bourgeau.) Greenland. (.Fl. Gr.) Conception Bay, Newfoundland. (Rev. A. Waghorne.)

(561.) T. Austriaca, Hedw.; Lesq. & James, Mosses of N. America, 255; Canadian Musci, No. 213.

Cascade Mountains and Pack River, B.C. (Lyall.) Damp rocks, Hudson Hope, Peace River, lat. 56°; on rocks at Hector, Rocky Mountains; common along the Columbia River above Revelstoke, also at Sicamous, Câche Creek and Yale, B.C.; common on wet rocks at Nanaimo and Goldstream, Vancouver Island. (Macoun.) Alert Bay, Vancouver Island. (Dawson.) Greenland. (Fl. Gr.)

(562.) T. Norvegica, Zett. Bull. Bot. Soc. Fr., 1862; Canadian Musci, No. 586.

Bank of the torrent at Hector, and in mud at the second creek east of that point, August 17th, 1890, and in the "Dry Canon," discharge of Devil's Lake, Rocky Mountains, 1891. (Macoun.) Greenland. (Fl. Gr.)