20 GEOLOGICAL SURVEY OP CANADA. 



(42,) R. hypcrboreus, Eottb. Northern Crowfoot. 



Marshes in the Rocky Mountains, Lat. 52 -5 I 7 C5 . (Drummond.) Arctic 

 Islands. (Parry.} Norton Sound to Wainright Inlet. (Rothr. Alask.) 

 Melville Island. (Dr. Walker.'} On both sides of Davis Strait and 

 Baffin's Bay. Greenland generally. (Hook. Arct. PL) 



(43.) R. Hookeri, Hegel. Hooker's Crowfoot. 

 R. pedatifidus, Hook. Fl. I., 18. 



Barren summits of the Rocky Mountains, on the eastern side of the 

 ridge. Lat. 52-55. (Drummond.) 



(44.) R. nivalis, Linn. Mountain Crowfoot. 

 R./rigidus, Willd. Hook. Fl. I., 18. 



Lofty parts of the Rocky Mountains, Lat. 55. (Drummond.) Cop- 

 per Mountains and Arctic Sea coast, in muddy pools which become dry 

 during summer, Long. 110. (Richardson.) Arctic coast near the 

 termination of the Rocky Mountains, Long. 140. (Franklin.) La- 

 brador. (Torr. & Gray.) Assistance Bay, south end of Cornwallis 

 Island. (Dr. Sutherland.) Kotzebue Sound. (Rothr. Alask.) Green- 

 land. (Hook. Arct. PL) 



Var. Eschscholtzii, Watson. 



E. Eschscholtzii, Scblecht. Hook. Fl. I., 18. 



Near the region of perpetual snow, on the borders of streams on the 

 Rocky Mountains. Lat. 52-56. (Drummond.) Top of Mount Selwyn, 

 Peace River Pass, Lat. 56. (Macoun.) Rocky Mountains near the 

 49th parallel ; and the Tsi Tsutl Mountains and Coast Range, B. C. 

 (Dawson.) Kotzebue Sound to Cape Lisburne. (Rothr. Alask.) 



Var. sulphurous, Wahl. 



E. Kidphureus, Solander. Hook. Fl. I., 17. 



Repulse Bay. (Dr. Rae.) Arctic Islands and Greenland. (Hooker.) 

 (44 b.) R. glacialis, Linn. 



R. Chamissonis, Schlecht. 



Fury Beach, Blwyn Inlet, Gulf of Boothia. (Capt. A. H. Markham.) 

 Greenland. (Hook. Arct. PL) 



(45.) R. acris. Linn. Meadow Buttercup. 



Introduced. Very abundant in every part of Ontario and Quebec, 

 and particularly so about the Sault Ste. Marie and Garden Rivers. Quite 

 common in Nova Scotia, and also becoming common in the eastern 

 part of Manitoba. (Macoun.) Newfoundland. (J~. Bell.) Too abun- 



