105 
LEGUMINOSjE. (pulse family.) 
longer than the petal, monadelphous at the very base, otherwise 
distinct. Pod oblong, longer than the calyx, 1 - 2-seeded, rough¬ 
ened, tardily dehiscent. — Shrubs, with odd-pinnate leaves ; the 
leaflets marked with minute pellucid at length brownish dots, usu¬ 
ally stipellate. Flowers violet, crowded in clustered terminal 
spikes. (Name from a privative and p^peftrj^form, referring to the 
deformed flower from the absence of 4 of the petals.) 
h -A.# fill tic OSa, L. (Common False Indigo.) Rather pu¬ 
bescent ; leaflets 8 -12 pairs, oval, scattered ; pods 2-seeded. — River- 
banks, S. Penn, southward. June. — A tall shrub. Leaflets about 1' 
long. 
2. A. cancscens, Nutt. (Lead Plant.) Low, barely 
shrubby at the base, whitened with hoary wool; leaflets 15 -25 pairs, 
elliptical, crowded, small, the upper surface smoothish with age ; pods 
1-seeded.—Prairies and rocks, Michigan to Wisconsin. July.— 
Supposed to indicate the presence of lead-ore. 
18. PSORALEA, L. Scurfy Pea. 
Calyx 5-cleft, persistent, the lower lobe longest. Stamens 
mostly diadelphous. Corolla truly papilionaceous. Pod seldom 
longer than the calyx, often wrinkled, indehiscent, 1-seeded. — 
Perennial herbs, usually sprinkled all over or roughened (espe¬ 
cially the calyx and pods, &c.) with glandular dots or points. 
Leaves pinnately or palmately 3 — 5-foliolate. Stipules cohering 
with the petiole. Flowers spiked or racemed, white or blue-pur¬ 
plish. (Name from yj/upaXeos, scurfy , from the scurfy glands or 
dots.) 
Onobrfcllis, Nutt. Nearly smooth and free from 
glands, erect; leaves pinnately 3-foliolate; leaflets lanceolate-ovate, 
taper-pointed (3 r long) ; stipules and bracts awl-shaped ; racemes ax- 
iHary, elongated ; pods ovate, roughened and wrinkled. — River- 
banks, Ohio and southwestward. July. —Stem 3°-5* high: flow¬ 
ers small. 
2. Stipulata, Torr. & Gr. Nearly smooth and glandless ; 
stems diffuse; leaves pinnately 3-fbliolate; leaflets ovate-elliptical, 
reticulated; stipules ovate; flowers in heads on axillary peduncles; 
bracts broadly ovate , sharp-pointed. —Rocks, Falls of the Ohio. June. 
Perhaps not within the limits of this work. (Char, amended.) 
19. XEXAEOSTEUION, Michx. Prairie Clover. 
Calyx nearly equally 5-toothed. Corolla indistinctly papiliona¬ 
ceous : petals all on thread-shaped claw r s, 4 of them nearly similar 
