13S OKDl.diilcM, SI:R\KV o|.' CANADA. 



On limesloTie rooUs noar Siiiait Lako, and at C'aclu> Crook, B.C. 

 (^Macoun.) 



((132.) P. cffusa, TV)u,i,H. 



On olovaloil grounds of (ho Assiniboino, and llic liiglior pai'ls ofllio 

 Rod Kivor, nlontiful. {Doiujlas.) Vory ooninion on llii' Souris Plain, 

 bill sooms to inorgo inio ibo ])rocoding spooios I'aithtM- to tho wost. 

 {Macoun.) 



(1)33.) P. Plattensis, Xuti. 



r. stricm, var. t^, Tl. iknirgotui, 256. 



Vory comnion from Cut Ai-ni Creek, N.W.T., westward, and south- 

 wai-d towards tho 40th ])arallel on saline, marshy soils. (Macowi.) 

 SasUatfhowan Plains. (Boun/cau.) 



(634.) P. dissecta, Pursb. Hook. PI. L, 103. 



J', (liirrsijolia, Hook. Fl. I., 190. Maconn's Cat., No. 548. 

 1'. Drummoyulii, Hook. Fl. I., 189. Macoun's Cat., No. 550. 

 P. ruhricauiix, Hook. Fl. I., 191. 



York Factory and Ecbimamish River. (R. Bell.) Near Hudson's 

 Bay. {Pursh.) About Bear Lake, in Lat. 66°. {Richardson.) Alpine 

 woods and prairies in the Rocky Mountains, as well as on the higbcr 

 summits, Lat. 52°-56°. (Bruvimond.) Rocky Mountains in the S. 

 Kootanie Pass, and on the Coast Range, B.C. (Dawson.) Great Slave 

 Lake. {McGill Coll. Herb.) 



(635.) P. gracilis, Dougl. Hook. Fl. I., 102. 

 F. nivea, var. PI. Bourgeau, 256. 



Common tbrougbout the western prairies and extending into British 

 Columbia. 



Var. flabelliformis, Torr. & Gray. 



F. jlabelliformis, Hook. Fl. I., 192. Macoun's Cat., 549. 



Plains of the Saskatchewan. (Brummond..) Abundant on the 

 western praii'ies. (Macoiin.) 



Var. fasti giata, Watson. 



P./asf*>ioto, Nutt. Torr. & Gray, Fl. I., 440. 



Old Wives Lakes, N.W.T., and westward, rare. (Macoun.) 



Var. rigida, Watson. 



P. chrysantha, Hook. Fl. I., 193. 



P. rigida, Nutt. Torr. & Gray, Fl. 1, 440. 



P. Nuttullii, Lehm. Macoun's Cat., No. 554. 



Moist prairies near the Rocky Mountains. (Drummond.) In low 



