236 GEOLOGICAL SURVEY OF CANADA. 



ably introduced ; the other a taller form that is certainly indigenoas. 

 Slave Lake. (Back.) 



(1098.) A. dioica, Caertn. 



Prom ITewfoundland to Labrador and the extreme Arctic regions, 

 and dry mountain pastm-es of the Eocky Mountains. {Hooker.) 

 Islands adjacent to the Alaskan coast. {Rothr. Alask.) Greenland. 

 {Hook. Arct. PI.) On the western prairie region and in British Colum- 

 bia a form which, in some respects, approaches A. alpina is very com- 

 mon. It seems to be the A. dioica of Eaton in King's Eeport of the 

 40th parallel, but is not the A. dioica of the English botanists. It is prob- 

 ably the prairie form of A. alpina, which indeed a late communication 

 from Dr. Gray would indicate. Our plant may be the var. parvifolia, 

 Tory. & Gray, which is not referred to by late writers. 



Yar. rosea, Eaton. Bot. King Exp., 186. 



Rather rare east of the Eocky Mountains, but common in British 

 Columbia. Near Short Creek, Souris Eiver, 49th parallel. Michell 

 Creek, Crow Nest Pass, Eocky Mountains ; Dean or Salmon Eiver, 

 B.C. (Dawson.) Frequent from Lytton to near Stuart Lake, B.C. 

 (Macoun.) 



(1099.) A. alpina, Gsertn. 



Labrador. (^Kohlmeister .) York Factoiy, Hudson Bay. (Douglas.) 

 Throughout the barren regions to the elevated Eocky Mountains. 

 (Drummond.) North of the Cypress Hills, N.AY.T., and on the Eocky 

 Mountains, 49th parallel. (Dawson.) Bow Eiver Pass, Eocky Moun- 

 tains ; Cache Creek and Stuart Lake mountains, B. C. (Macoun.) 

 Kotzebue Sound, island of St. Lawrence, and Ounalashka. (Hothr. Alask.) 

 On both sides of Baffin's Bay and Davis Straits. Mellville islands. 

 (Capt. MarkJiam.) Greenland. (Hook. Arct. PL) Bartlett Bay, 

 Alaska. (Meehan.) Lake Lindeman, source of the Youcan Eiver, 

 Lat. 60°. (Schwatka.) 



(1100.) A. Carpathica, E. Br. 



"Wet, boggy places and river margins. Labrador. (Gray.) Eiver 

 de Brig and Gunn Eiver, Anticosti. (Macoun.) York Factory, Hudson 

 Bay. (jR. Bell.) Summits of the most elevated Eockj' Mountains, 

 about Lat. 54°. (Drummond.) Crow Nest Pass, east of the lake; 

 western summit of North Kootanie Pass ; summit of the Cascade 

 Mountains, B.C. (Dawson.) Cache Ci-eek Mountain, B.C. (Macoun.) 



