227 



Leaflets elliptic, or ovate-oblong V. americana, 

 Leaflet narrowly linear; western V. linearis. 



Vicia Americana M u h 1. ; W i 1 1 d. sp. PI. 3 : 1 096. 1 803. 



Perennial, glabrous or with some appressed pubescence, 

 trailing or climbing, 2^. — 3^ long. Leaves nearly sessile; 

 stipulates broad, foliaceous, triangular-ovate, sharply toothed, 

 T'- — 5'' long ; leaflets 8^14, elliptic, ovate or oblong, obtuse 

 or sometimes emarginate and mucronulate at the apex, 

 rounded at the base, 8^'^ 18'' long, 3"— 7'' wide; peduncles 

 usually shorter than the leaves, racemes loose, 3— 9-flowered ; 

 flowers bluish-purple, 8"— 9'' long, spreading ; pod short- 

 stalked, glabrous, T— IVé' long, 4^ — 7 seeded. 



In most ground, New Brunswick to Manitoba and 

 British-Columbia, south to Virginia, Kentucky and Nevada. 

 Leaflets of lower leaves sometimes narrow. Ascends to 

 3500 ft. in Virginia, May^Aug. 



Vicia Americana truncata (N u 1 1.) B r e w e r, in B r e w. 

 & Wats. Bot. Cal. 1: 158. 1876. 



Vicia truncata N u 1 1. T. 6 G. Fl. N. A. 1 : 270. 1 838. 



Leaflets thick, oblong or obovate, truncate and dentate 

 at the anex. Nebraska to California, north to Vancouver. 



Vicia linearis (Nutt) Greene 



Lathyrus linearis Nutt. T. 6 G. Fl. N. A. 1 : 276. 1838. 



Vicia Americana var. linearis S. Wats. Proc. Am. 

 11: 134. 1876. 



Vicia linearis Greene, Fl. Francis. 3. 1891. 



Perennial, glabrous or nearly so, stems weak, often 

 zigzag, 1^ — 2° long. Leaflets 4—7 pairs, narrowly linear 

 to linear-oblong, 9''— 18'' long, V/'— 2" wide, rather thick, 

 acute or obtusish, the apex not toothed, mucronate ; stipules 

 2"— 4" long, half-sagittate, acuminate, their bases prolonged, 

 sometimes dentate ; peduncles shorter than the leaves, or 

 about equaliing them; racemes loose, 2—6 flowered, flowers 

 purple or purplish, about 9" long; pod about 1' long, 3" 

 wide or rather more, glabrous, short-stalked. 



