CATALOGUE OF CANADIAN PLANTS. 137 



{McGill Coll. Herb.) St. Croix ; Eiviere du Loup, Q. (Tymnet.) St. 

 Eoche des Autruts, Q. {Maclagan.) Lake Superior. {Prof. Ellis.) 

 On gravel beaches, both above and below Mont Louis, Gaspe coast, Q. 

 Yery abundant on the western plains and through the Eocky Moun- 

 tains to Spence's Bridge, in British Columbia. (^Macomi.) As far north 

 as Bear Lake, and from Hudson's Bay to the Eocky Mountains. 

 (Bichardson.) Churchill Eiver and near York Factory. (J?. Bell.) 

 Kotzebue Sound. (Bothr. Alask.) 



Yar. strigosa, Pursh, 356. 



Abundant on the western plains and near Cache Creek, in Britis 

 Columbia. The common form in the prairie region. (Macoun.) 



Yar. bipinnatiflda, Torr. & Gray. 



p. Upinnatifida, Dougl. Hook. Fl. I., 188. 



Plains of the Saskatchewan and Eed Elvers. (Douglas.) Yicinity 

 of Old Wives' Lakes, N.W.T., and westward. (Macoun.) 



Yar. glabrata, Watson. 



P. sericea, var. glabrata, Hook. Fl. I., 189. 



Eocky Mountains, Lat. 52°-56°, {Brummond.) 



(629.) P. Hookeriana, Lehm. 



Collected on the Saskatchewan ; locality not stated. (^Bourgeau.) 

 British America. ( Watson.) We have never met with this species. 



(630.) P. pulchella, E.Br. 



Islands of the Arctic Sea. (Boss.) Shores of the mainland between 

 the Copi^ermine and Mackenzie Elvers. (Bichardson.) Greenland. 

 (Hook. Arct. PI.) Mackenzie Eiver. (McGill Coll. Herh.) 



(631.) P. Hippiana, Lehm. 



P. Pennsylvanica, var. Hippiana, Torr. & Gray, Fl. I., 438. 



Plains of the Saskatchewan and Eed Elvers and prairies of the 

 Eocky Mountains. (Prummond) Yery abundant in the prairie region, 

 extending to the Eocky Mountains and British Columbia, below Cache 

 Creek. (Macoun.) Pine Eiver, Lat. 55°. (Pawson.) 



Yar. pulcherrima, Watson. 



P. pvlcherrima, Hook. Fl. I., 190. 



P. Pennsylvanica, var. pulcherrima, Torr. & Gray, Fl. I., 438. 



P. ruhricaviis, PI. Bourgeau, 256. 



On the prairies as well as on dry banks, in the Eocky Mountains, 

 Lat. 52°-56°. (Prummond.) Point Wilkins, Lake Winnepegoosis, Man. 



