174 GEOLOGICAL SURVEY OF CANADA. 



199. CLARKIA, Pursh. (CLARKIA.) 



(812.) C. pulchella, Pursh. 



From the Great Falls of the Columbia to the Eocky Mountains. 

 (Douglas.) Near Osoyoos Lake, southern boundary of British Colum- 

 bia. {Dawso7i.) 



200. BOISDUVALIA, Spach. (BOISDUVALIA.) 



(813.) B. densiflora, Watson. 



(Enothera ,h:n»[flom, Lindl. Torr. & Gray, Fl. I., 505. 

 Vancouver Island, near Victoria. (Dawson.) 

 (8U.) B. glabella, Walp. 



CEnollwra glabdla, Nutt Torr. & Gray, Fl. I., 505. 



Pile of Bones Creek, Souris Plain ; Weedy Lake, west of Old Wives 

 Lakes and on the Cypress Hills, N.W.T. (^Macoun.) 



20I. CAURA, Linn. (GAURA.) 

 (815.) C. coccinea, Nutt. 



G. marginala, Lehm. Hook. Fl. I., 208. 

 G. glabra, Lehm. Hook. Fl. I., 209. 



Plains of the fled and Saskatchewan Eiver.s. (Drumnwrnd, Douglas.) 

 Abundant near Brandon and westward, on gravelly banks throughout 

 the prairie region. {Macoiin.) Badger Creelv ; dry banks. Wood End, 

 Souris Eiver ; and westward to the mountains, Lat. -49°. (^Dawson.) 



(816.) C. biennis, Linn. 



Dry banks. Moffatt's Island, Montreal ; Maiden, Ont. (Maclagan.) 

 About Montreal. (Clegharn.) 



202. CIRCOEA, Tourn. (ENCHANTER'S NIGHTSHADE.) 



(817.) C. alplna, Linn. 



Common in damp, shady woods, from the Atlantic to the Pacific. 

 Sitka. (JRothr. Alask.) This is wholly a forest species. 



