(2809.) T. canescens, Buckl. Proced. Acad. Philad. 100, (1862.)
T. elatum, Boland. Cat. 34. Not uncommon on rocky soil in the southern part of Vancouver Island, at Cedar Hill, Goldstream, Nanaimo, and Home Lake, near Qualicum. (Macoun.) Near Sooke, Vancouver Island. (Dawson.) At Agassiz Station, B.C. (Fletcher.)
(2810.) T. cernuum, Trim; Hook., Fl. II., 244.
Abundant in grassy and damp woods at Oak Bay, Cedar Hill, and
Nanaimo, Vancouver Island. (Macoun.) Mount Finlayson, and Sooke,. Vancouver Island. (Fletcher.)
(2811.) T. subspicatum, Beauv.; Hook., Fl. II., 244.
T. airoides, Roem. & Schultz. Rocky margins of cliffs and ravines from.Morley westward through the Rocky and Selkirk mountains, and northward in British Columbia to Fort McLeod, lat. 55°. (Macoun.) Eastern summit of North Koo-tanie Pass, Rocky Mountains; Upper Liard River, lat. 60°, Felly Banks, lat. 62°, Frances Lake, Finlayson Lake, and hills north of that lake, N.W.T. (Dawson.) Ounalashka, and Kotzebue Sound; and from Point Barrow to Mackenzie River. (Rothr. Alask.) Greenland. (Lange.)
(2812.) T. subspicatum, Beauv., var. molle, Gray, Man. Ed. V.
Very common on rocky banks of rivers and lakes particularly northward. Nain, coast of Labrador; Cape Chudleigh, Cape Prince of Wales, and Digge's Island, Hudson Strait; Port Churchill, Hudson Bay. (R. Bell.) Newfoundland. (Reeks.) On rocky banks, Resti-gouche River; Upper Gaspereaux and Upper St. John rivers, N. B. (Fowler, Cat.) Manowin Island, Seven Islands Bay, and Grand Isle, Mingan, Q. (St. Cyr.) Rivière de Brig, and Jupiter River, Anticosti, Madeline river, Gaspé, Q.; crevices of rocks, Partridge Lake, Addington Co.; sand hills, near Port Hope; and at Oak Hill Pond, Hastings Co.; along Gull River, Victoria Co.; very abundant around Lake Superior and Lake Nipigon. (Macoun.) Along the north shore of Lake Superior. (Agassiz.) Shore of James Bay north to Cape Jones; Severn River to Hudson Bay, and north to York Factory. (J. M. Macoun.) Michi-picotin River, Ont. (R. Bell.) Middle Branch of North Fork of Old Man River, Rocky Mountains; Skagit summit, Hope trail, B.C. (Daw-son.) On damp slopes throughout the Rocky and Selkirk mountains; on the summit of Mount Mark, Vancouver Island. (Macoun.) Rocky Mountains to the Arctic sea-shore and islands. (Hooker, Fl.)