208 GEOLOGICAL SURVEY OF CANADA. 



699. AMMOPHILA, Host. Gram. Austr. IV., 24. (SAND- 

 GRASS.) 



(2798.) A. arundinacea, Host.; Hook., Fl. II., 241. 



Arundo arenaria, Linn. ; Michx., Fl. I., 73 ; Ptirsh, Fl. I., 87. 

 Psamma littoralis, Beauv. Agrost. 143- 



Calamagrostis arenaria, Trin. ; Gray, Man. Ed. V., 616 ;" Macoun, Cat. 

 No. 2139. 



Apparently a rare grass on sea beaches and on the shores of the 

 Great Lakes. St. John, and Kouchibouguac, N.B. (Fowler, Cat.) 

 Sands of Wellington Beach, Prince Edward Co., Ont. ; very abundant 

 on sand at Pic River, Lake Superior. (Macoun.} North shore of 

 Lake Superior. (Agassis.} 



(2799.) A. longifolia, Benth. & Hook. Gen. Plant III., 1153. 



Calamagrostis longifolia, Hook., Fl. II., 241 ; Macoun, Cat. No. 2134. 



Very abundant throughout the whole prairie region on sandy ridges, 

 and extending westward to Morley at the base of the Rocky Mountains. 

 (Macoun.} Milk River, north of West Butte, lat. 49. (Dawson.) Souris 

 Plain, Assiniboia. (J. M. Macoun.} Saskatchewan River. (Hooker, FL} 

 I place this species with Ammophila, in deference to Bentham and 

 Hooker. Dr. Yasey doubts the correctness of this disposition of it. 



700. AIRA, Linn. Gen. 81. (HAIR-GRASS,) 



(2800.) A. CARYOPHYLLEA, Linn. ; Gray, Man. Ed. Y., 642. 



Introduced and naturalized and very abundant in all the old clear- 

 ings and oak woods in the southern part of Vancouver Island. 

 (Macoun. Fletcher.} 



(2801.) A. PR^ECOX, Linn. ; Gray, Man. Ed. V., 641. 



Avena praecox, Beauv. 



Introduced and naturalized with the preceding in the southern part 

 Vancouver Island. (Macoun. Fletcher.} 



