72 
myrtifolius. 
Americana. 
Cracea? 
DIADELPHIA, DECANDRIA. 
314. LATHYRUS. Gen. pi. 1186. {Leguminosce.) 
Style flat, broader above and villous on the 
upper side. The upper segments of the 
calix shorter. — JVutt. 
1 . L. stem naked, tetragonous ; stipules semi-sa- 
gittate, lanceolate-acuminate ; folioles 4, oblong- 
lanceolate, acute, mucronate, venose-reticulate ; 
peduncles longer than the leaf, sub-3-flovvered. 
—Willd. 
Myrtle-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. IIS^. {Leguminosae.^ 
Stigma transversely bearded on the under 
side. Calix emarginate and bidentate 
above, the 3 lower dentures long and 
straight. Vexillum emarginate. — JV* utt. 
1 . V. peduncles many-flowered, shorter than the 
leaf ; stipules semi-sagittate, dentate ; folioles 
8 - 12 , elliptic-lanceolate, obtuse, glabrous.— 
WUld. 
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 5 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. 
