72 
myrtifolius, 
Amerieana. 
Cracea? 
DIADELPHIA, DECANDRIA. 
314. LATHYRUS. Gen. pl. 1186. (Leguminose.) 
Style flat, broader above and villous on the 
upper side. ‘The upper segments of the 
calix shorter.— Nutt. 
1. L. stem naked, tetragonous ; stipules semi-sa- 
gittate, lanceolate-acuminate ; folioles 4, oblong- 
lanceglate, acute. mucronate, venose-reticulate ; 
aig op longer than the leaf, sub-3-flowered. 
—Wiilld. 
Myrile-leaved Pea-vine. 
Flowers pale purple. Among the large autumnal plants 
in the marshy borders of the Delaware; common. Perennial. 
July, August. 
* 
315. VICIA. Gen. pl. 1187. (Leguminose.) 
Stigma transversely bearded on the under 
side. Calix emarginate and bidentate 
above, the 3 lower dentures long and 
straight. Vewillum emarginate.—Nutt. ° 
1. V. peduncles many-fiowered, shorter than the 
leaf; stipules semi-sagittate, dentate ; folioles 
8-12, elliptic-lanceolate, obtuse, glabrous.— 
Willd. - 
American Vetch. 
Resembles Lathyris palustris, somewhat. Flowers purple. 
On the Schuylkill above Lemon-hill; rare. Perennial. July. 
2. V. spikes many-flowered, retrorsely imbricated, 
longer than the leaf; stipules semi-sagittate, 
linear-subulate, very entire; folioles numerous, 
lanceolate-oblong, pubescent.--Willd. & Pursh. 
Flowers blue. Resembles No. 1, but much more rare. In 
watery thickets, scarce. Perennial. July. 


