204 GEOLOGICAL SURVEY OF CANADA. 



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



Calamagroslis Canadensis, Beauv. ; Hook., Fi. II., 240; Macoiin, Cat. 



No. 2135. 

 C. Mexicana, Nutt. Gen. I., 46. 

 C. Purshii, Kuntli, Enum. I., 208. 



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

 A. dnnoideg, Muhl. Gram. 187. 

 A. agrostoides, Pursh, Fl. I., 86. 



An abundant and valuable species extending from Newfoundland 

 and the Atlantic provinces throughout the whole northern and central 

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

 islands on the Pacific coast and north to Alaska. 



(2782.) D. confinis, Kunth; Vasey, Grasses of U. S. 28, (1883.) 

 Calamagroslis conjinig, Kutt. Gen. I., 46. 

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

 Arundu confinis, Willd. Enum. I., 127. 



Chiefly included by collectors in B. neglecta or Calamagrostis 

 stneta. Vicinity of Hamilton, Ont. (Logie.) Eocky woods, Elziver, 

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

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

 station, Bocky 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. 

 Nimpkishor Karrautzon Lake, Vancouver Island. {Dairson.) In 

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

 Island. (Macoun.) 



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



(1885.) 



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

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



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



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



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

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

 at Whycocomagh, Cape Breton. (_Macoun.) Campbellton, N.B. (Chal- 

 mers.) Thunder Eivei', ^i. (St. Cyr.) Salt Lake, Anticosti ; Current 

 Eiver, near Port Arthur, Lake Superior. (Macoun.) Port Arthur. 

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



