Contributions to Canadian Botany. 20*7 



(J. A. Morton.) Leamy's Lake, Hull, Que. ; Tail Creek, 

 N.W.T. {John Macoun.') Indian Head. Assa. ( W. Spread- 

 borough.') Short Creek, Souris Eiver, Man. ; Belly Eiver, 

 Alberta. {Dr. G. M. Dawson.) "Arctic North America," 

 no locality. (Dr. Richardson.) 



(11.) P. Hartwrightii, Gray, 



Salt Lake, Anticosti, Que. ; Elziver, Hastings Co., Ont. ; 

 Vermillion Lakes, near Banff, Rocky Mts. (Herb. No. 

 1,481.) ; Eevelstoke, B.C. ; Kamloops, B.C. {John Macoun.) 

 Near York Factory, Hudson Baj. {Dr. R. Bell.) London, 

 Ont. (^Burgess.) Muskeg Island, Lake Winnipeg. (Jns. 

 M. Macoun.) 



(12.) P. Orientale, L. 



Ottawa, Ont. {Dr. A. R. C. Selwyn.) London, Ont. 

 {Burgess.) 



(13.) P. ALPINUM, All. 



Peel River, Mackenzie River Delta, 1892, {Miss E. Tay- 

 lor). The references under P. polymorphum, Macoun, Cat. 

 Can. Plants, Yol. I., p. 412, probably all go with this species 

 or its var. lapathifolium. 



(14.) P. AYICULARB, L. 



From Ontario to Vancouver Island. 



Var. borealis, Lange. 



Specimens collected on the East Main River, Hudson 

 Bay, by A. H. D. Ross, in 1892, when compared with speci- 

 mens from Greenland seem certainly referable here. 



(15.) P. LiTTORALE, Link. 



P. erectum, Macoun, Cat. Can. Plants, Vol. 1., p. 407 in 

 part. 



Thunder Bay, Lake Superior. {N. L. Britton.) Castle 

 Mountain, Rocky Mts. ; Banff, Rocky Mts., Herb. No. 

 1,487; near Devil's Lake, Rocky Mts., Herb. No. 1,486. 

 {John Macoun.) Walsh, Assa. (J. M. Macoun.) 



