110 GEOLOGICAL SURVEY OF CANADA. 



141. ROBINIA, Linn. (LOCUST-TREE.) 



(486.) R. Pseudacacia, Lmn. Common Locust. 



Cultivated and growing spontaneously from both suckers and seeds. 

 From Nova Scotia to western Ontario. It becomes a large tree and is 

 often 60 feet high. 



(487.) P. viscosa, Vent. Clammy Locust. 

 P. hispida, Macoun's Cat., No. 424. 



Cultivated with the preceding, but never attaining a large size. 

 Both species are very showy and are much valued for ornamental 

 purposes. 



142. ASTRAGALUS, Linn. (MILK VETCH.) 



(488.) A. lentlginosus, Dougl. Hook. Fl. I., 151. 



A. diaphanvs, Dougl. Hook. Fl. I., 151. 



Barren grounds in the valley of the Columbia. {Douglas.) Nicola 

 Valley, B.C. (Dawson.) 



(489.) A. caryocarpus, Ker. Hook. Fl. I., 150. 



Hilly grounds of the Saskatchewan, especially about Carlton. {Doug- 

 las.) Quite common on the prairie, from the Eed Eiver, westward. 

 It grows in large tufts, which lie flat on the ground in fruit. (Macoun.) 



(490.) A. Lyallil, Gray. 



Probably in the mountains, along the southern boundary of British 

 Columbia. (Lyall.) 



(491.) A. Canadensis, Linn. Canadian Milk Vetch. 



A. Carolinianus, Linn. Pursh, 472. 



Eiver banks and rocky margins of fields. Vicinity of Quebec to the 

 Eocky Mountains, and north to Nelson Eiver, near Hudson's Bay. 



(492.) A. adsurgens, Pall. Hook. PI. L, 149. 

 A. striatus, Nutt. Torr. & Gray, Fl. I., 330. 



Plains of the Saskatchewan and Assiniboine Elvers, as far as the 

 mountains. {Richardson.) Very abundant on the prairie, from the 

 Eed Eiver to the Eocky Mountains, and north to Green Lake, Lat 56°. 

 {Macoun.) Nelson Eiver, between Lake "Winnipeg and the coast of 

 Hudson's Bay. {B. Bell.) Common along the 49th parallel, and at 

 Woody Mountain. . {Dawson.) 



