CATALOGUE OF CANADIAN PLANTS. 261 



around Owen Sound and Colpoy's Bay, Ont. ; rare in crevices of lime- 

 stone rocks on the mountains near Kananaskis Station, Rocky Moun- 

 tains, on the C. P. By., and on limestone cliffs. Clearwater River, north 

 of Methy Portage, Lat. 57, N. W. Ter. ; canyon, near Buffalo Head 

 Mountain, Rocky Mountains ; crevices of dry rocks between Spence's 

 Bridge and Cache Creek, B.C. (Macoun.) Hillsides on broken rocks, 

 not common, Kootanie District, B.C. (Anderson.) Canada to Bear 

 Lake and the Rocky Mountains. (Richardson, Drummond.) Moun- 

 tains between Nicola and Kamloops, B.C. (Dawson.) Banff, Rocky 

 Mountain Park. (J. Smith.) 



(2984.) P. densa, Hook., Sp. Fil., ii., 150. Hook. & Baker, Syn. 



Fil., 149. Macoun & Burgess, Trans. Roy. Soc. Can., ii., sect. 



iv., 185. 



A rock species, confined so far as known to the provinces of Quebec 

 and British Columbia, where it is rare. Found by Prof. Allen on 

 Mount Albert, Shickshock Mountains, Gaspe, Que., in 1881, growing 

 exposed to the sun on the steep walls of ravines, at 2000 to 3000 feet 

 elevation. (Eaton.) Abundant on cliffs along the Fraser River above 

 Yale and within the Cascade Mountains, notably at Chinaman's Bluff; 

 on rocks, Sicamous, Shuswap Lake ; and summit of Mount Finlayson, 

 Vancouver Island, B.C. (Macoun.) Mount Finlayson, Vancouver 

 Island, B.C. (Anderson.) 



744. CRYPTOCRAMME, R. Br., APP. Frank. Narr. 



(ROCK-BRAKE.) 



(2985.) C. acrostichoides, R. Br., appendix to Franklin's First 

 Journey, 767. Hook., Fl. Bor.-Am., ii., 264. Lawson, Can. Nat., 

 i., 273. Watt, Can. Nat, iv., 363. Macoun & Burgess, Trans. 

 Roy. Soc. Can., ii., sect, iv., 185. 



C. crispa, forma Americana, Hook., Sp. Fil., ii., 130. 

 Allosorus acrostichoides, Spreng., Syst., 66. Gray, Man., 660. 

 C. crispa, var. acrostichoides, Lawson, Fern Fl. Can., 236. 



Is found, forming dense tufts, among rocks and in their crevices, from 

 Lake Huron westward to British Columbia, and stretching northward 

 to within the Arctic Circle. McLeod's Harbor, Manitoulin Island, 

 Ont. (J. Pell) Cumberland House to Great Bear Lake, N. W. Ter. 

 (Richardson.) Between Echimamish River and Oxford House, and 

 around Cross Lake and on Nelson River near Hudson Bay, Keewatin. 

 (R. Bell.) Common from Lake Winnipeg to the " Height of Land," 



