204 GEOLOGICAL SURVEY OF CANADA. 



(2781.) D. Canadensis, Hooker, Arc. PL 307 & 308. 



Calamagrostis Canadensis, Beauv. ; Hook., FL II., 240 ; Macoun, Cat. 



No. 2135. 



C. Mexicana, Nutt. Gen. L, 46. 

 G. Purshii, Kunth, Enum. I., 208. 



Arundu Canadensis, Michx., Fl. I., 73 ; Pursh, Fl. I., 86. 

 A. cinnoides, Muhl. Gram. 187. 

 A. agrostoides, Pursh, Fl. L, 86. 



An abundant and valuable species extending from Newfoundland 

 and the Atlantic provinces throughout the whole northern- and central 

 forest region, and Rocky Mountains and British Columbia, to the 

 islands on the Pacific coast and north to Alaska. 



(2782.) D. conflnis, Kunth; Yasey, Grasses of U. S. 28, (1883.) 



Calamagrostis confinis, Nutt. Gen. I., 46. 



C. inexpansa, Gray, Gram. & Cyp. I., No. 20. 



Arundo confinis, Willd. Enum. I., 127. 



Chiefly included by collectors in* D. neglecta or Calamagrostis 

 stricta. Vicinity of Hamilton, Ont. (Logie.} Rocky woods, Elziver, 

 North Hastings, Ont.; woods along the North Saskatchewan, above 

 Fort Carleton, and at Edmonton, lat. 53 ; on gravel at Kananaskis 

 station, Rocky Mountains ; shores of Home Lake, and Cameron Lake, 

 Vancouver Island. (Macoun.) 



(2783.) D. crassiglumis, Vasey, Cat. Grasses, U. S., 50, (1885.) 



Calamagrostis crassiglumis, Thurber, Bot. Calif. II., 281. 

 Nimpkish or Karmutzen Lake, Vancouver Island. (Dawson.} In 

 gravel along the shores of Home Lake, near Qualicum, Vancouver 

 Island. (Macoun.} 



(2784.) D. deschampsioides, Vasey, Cat, Grasses IT. S. 50, 

 (1885.} 



Calamagrostis deschampsioides, Trin. Spec. Gram. III., 354. 

 California to Alaska. ( Vasey.} We know nothing of this species. 



(2785.) D. Langsdorffii, Kunth, Gram. L, 77. 



Calamagrostis Langsdorffii, Trin. ; Macoun, Cat- No. 2136. 



C. Oregoncnzis, Buckl. Proced. Philad. Acad., 92, in part, (1862.) 



Magdalen Islands, Gulf of St. Lawrence. (McKay.) Low grounds 

 at Whycocomagb, Cape Breton. (Macoun.} Campbellton, N.B. (Chal- 

 mers.} Thunder River, Q. (St. Cyr.} Salt Lake, Anticosti ; Current 

 River, near Port Arthur, Lake Superior. (Macoun.} Port Arthur. 

 (Burgess.} Fort George, James Bay. (J. M. Macoun.} North end of 



