CATALOaUE OF CANADIAN PLANTS. 201 



Dominion of Canada. In the eastern provinces there are both the 

 introduced and indigenous forma, but westward in the Eocky Moun- 

 tains and British Columbia, especially on Vancouver Island, the indi- 

 genous variety is the predominant or only one. 



Yar. ALBA, Yasey, Cat. Grasses, TJ. S. 41, (1885.) 



A. alba, Linn. ; Pursh, Fl. I., 64 ; Hook., Fl. II., 239. 

 A. decumbms, Muhl. Gram. 68. 



Naturalized in pastures and wet meadows, especially eastward. 

 This and the preceding are invaluable for pasture and permanent mea- 

 dow land, and are the Bed Top and Herd's Grass of the agriculturalists. 

 Greenland. {Lange.) 



695. POLYPOCON, Desf. (BEARD-GRASS.) 



(2773.) P. MoNSPELiENSis, Desf ; Gray, Man. Ed. Y., 612. 



Waste heaps around Yictoria, especially at the head of James Bay, 

 Yancouver Island. (Fletcher. Macoun.) Introduced. 



(2774.) P. LiTTORALis, Smith ; Bot. Calif. II., 270. 

 F.fugax, Boland. Cat. .S4. 

 Eefuse heaps at the head of James Bay, Yictoria, Yancouver Island. 

 {Macoun.) Introduced. 



696. ARCTACROSTIS, Criseb. Ledeb. Fl. Boss. lY., 434. 



(2775.) A. latifolia, Ledeb. PI. Boss. lY., 434. 



Colpodium latifottum, B. Br. ; Hook., Fl. II., 238. 



Vilfa arundinacea, Trin. Diss. I. 

 Cape Chudleigh, Cape Pj-ince of Wales, and Mansfield Island, Hud- 

 son Strait. {R.Bell.') Nottingham Island, Hudson Bay. (^Mackenzie.) 

 Arctic sea-coast and islands ; Hudson Bay ; and Bear Lake, to the shores 

 of the Arctic sea. {Hooker, Fl.) Port Kennedy, Lancaster Sound. 

 {Dr. Walker.) Between Fort Churchill, and Cape Lady Pelly, Hudson 

 Bay. {Br. Rae.) Greenland. (Lange.) 



Yar. Alaskensis, Yasey, Cat. Grasses, U. S. 48, (1885.) 

 Colpodium laiifohum, /3. Kunth. (?) 

 C. arundinaceum, Hook., Fl. II., 238. (?) 

 Kotzebue Sound, and Arctic coast. {Rothr. Alask.) Point Barrow, 

 Arctic coast. (John Murdoch.) 



