DIADELPHIA, DECANDRIA. 
71 
ORDER IV. DECANDRIA. 
312. LUPINUS. Gen. pi. 1176. (Leg-unanoste.') 
j CaZia? bilabiate. Five of the awiZters oblong, 
I and 5 partly round. Legume coriaceous, 
torulose. — J^utt. 
I 1. L. perennial, repent j stem and leaves smooth- perennis. 
! ish ; leaves digitate j folioles (8-9) lanceolate, 
j somewhat obtuse ; calices alternate, without ap- 
pendices ; upper lip emarginate, lower one en- 
j tire. — WUld. and Pursh. 
I Icon. Bot. Mag. 202. 
Perennial Lupin. 
From one foot to eighteen inches high. Flowers fine purple. 
This elegant plant ought to be cultivated in gardens. In the 
woods of Jersey, every where abundant. Perennial. May till 
I July. 
I 313. CROTALARIA. Gen. pi. 1172. {Legumnosx.) 
I Vexillum large and cordate; carina acumi- 
j nate. Filaments united in one body, with 
I a dorsal fissure. Legume pedicellate, tur- 
I gid. — JSTutt. 
1. C. hirsute, erect, branched ; leaves simple, oh- Sagittalis. 
long-lanceolate ; stipules lanceolate-acuminate, 
decurrent ; racemes opposite-leaved, sub-3-flow- 
ered ; corollas smaller than the calix, — Willd. 
C. sagittalis, /3. oblonga, Mich. 
Arroxo Rattle-box, 
From four to ten inches high . Flowers yellow. The pods 
are indigo-blue or black, and very hard, so that the seed con- 
tained within, rattle against the sides ; hence the name. In the 
sandy fields of Jersey, very abundant. In a stony field above 
the falls of Schuylkill and elsewhere, frequent. Annual. July. 
