320 , GEOLOOIOAL SURVEY OF CANADA. 



(14Y2.) A. purpurascens, Linn, ruiplo Milkwood. 



Maldon, and i.sl;iiul> in J)i>in>it Kivor, (^Mackiijan.) 



Excluded Species. 



Asclepias obtusifolia, Midix. 



A. variegata, i^inn. 



1 liavc no aulliontu' rorord ol' llic di.scoveiy ol" lllo^c spccios and in 

 tho ahseni-e of specinions, am totally unablo to know what npecies 

 they represent. The latter was said to have been found at llaniil- 

 ton, Ont., by the late Judge Logie. 



392. ACERATES, Ell. (GREEN MILKWEED.) 

 (1473.) A. viridiflora, KU. 



Asclepias viridiflora, Raf. Hook. Fl. II., 53. 

 On dry or gravelly soil from Niagara Falls westward to the Eock}' 

 ^Mountains. Head of I^ake Erie. (Goldic.) About Fort Carlton. 

 (BicJuirdson.) On the sand hills near Old Wives Lakes. {Macoun.) 

 Wood End, Souris Eivei-, 49th parallel. (Dawson.) 



Yar. lanceolata, Gray. 



Asclepias viridiflora, Eaf. Var. lanceolata, Hook. Fl. II., 53. 

 On the sand beaches of Point Pelee, Lake Erie ; also in numerous 

 places in Manitoba and North-west Teri-itories. (Macoim.) On a sand 

 beach at Point Edward, foot of Lake Huron. (J. M. 3IacGim.') Banks 

 of theEed Kivei". (Douglas.) About Fort Carlton. (Richardson.) 



Var. linearis, Gray. 



This variety has linear leaves and low stems ; umbels often solitary. 

 Winnipeg "Valley. (Gray.) Banks of the Assiniboine Eiver ; Pine 

 Creek on sand dunes ; and on sand hills at the confluence of the 

 Qu'Appelle and Assiniboine rivers. (Macoim.) 



LXIV. GENTIANACE^. Gentian Family. 



393. SABBATIA, Adns. (AMERICAN CENTAURY.) 



(1414.) S. angularis, Pursh. 



Eich soil, western Ontario. (Gray.) This species as a Canadian 

 plant is unknown to me. 



