PAPILIONACEAE,. {Vor. I. 
1o. Psoralea cuspidata Pursh. Large- 
bracted Psoralea. (Fig. 2095.) 
Psoralea macrorhiza Nutt. Fraser’s Cat. Name only. 1813. 
Psoralea cuspidata Pursh, Fl. Am. Sept. 741. 1814. 
Psoralea cryptocarpa T. & G. Fl. N. A. 1: 301, 1838. 
Erect or ascending, stout, branched, finely ap- 
pressed-pubescent, at least above, 1°-2° high, from a 
long deep tuberous-thickened root. Petioles equalling 
or shorter than the leaves, 1!4/-2/ long; stipules linear, 
acuminate, 6’/-8/’ long; leaflets 5, digitate, short- 
stalked, entire, broadly oblanceolate or oval, obtuse 
and commonly mucronate at the apex, narrowed or 
cuneate at the base, 1/-2’ long, 4/’-7’’ wide; spikes 
oblong, dense, 114’-3/ long, 1/-134’ thick; peduncles 
longer than the petioles; bracts lanceolate, long-cus- 
pidate, equalling or exceeding the bluish corolla; pod 
oval, membranous, enclosed in the calyx. 
Prairies, Northwest Territory to Kansas, Colorado, 
Arkansas and Texas. May-June. 
11. Psoralea esculénta Pursh. Pomme 
Blanche. Prairie Apple or Turnip. 
(Fig. 2096.) 
Psoralea esculenta Pursh, Fl. Am. Sept. 475. 1814. 
Rather stout, erect from a large farinaceous 
root or cluster of roots, little branched, 4/—18’ 
high, densely villous-pubescent with whitish 
hairs. Lower petioles 2-4 times longer than the 
leaves; stipules lanceolate, 8’/-12’’ long; leaflets 
5, digitate, short-stalked, oval or obovate, entire, 
obtuse, narrowed at base, 1/-2’ long, 4’/-10// 
wide; peduncles equalling or longer than the 
petioles; spikes oblong, dense, 14’—3/ long, 1/— 
134’ thick; bracts lanceolate or ovate, acute, 5’/— 
8’/ long, nearly equalling the bluish corolla; pod 
oblong, glabrous, about 234’’ long, slightly 
wrinkled, enclosed in the calyx-tube. 
Prairies, Manitoba and Dakota to Nebraska and 
Texas, Called Indian or Missouri Bread-root. June. 
12. Psoralea hypogaéa Nutt. Small Indian 
Bread-root. (Fig. 2097.) 
Psoralea hypogaea Nutt.; T. & G. Fl. N. A. 1: 302. 1838. 
Similar to the preceding species, but smaller, nearly 
acaulescent, the stem hardly rising above the ground, 
densely pubescent with appressed whitish hairs. Petioles 
2-4 times as long as the leaves; stipules oblong, acutish, 
about 6’ long; leaflets 5, digitate, sessile or nearly so, 
linear-oblong or oblanceolate, 1/-14’ long, 2’/-3’’ wide, 
entire, often mucronate-tipped, narrowed at the base; pe- 
duncles 14’-3’ long; spikes short, dense, %4/-1’ long; bracts 
ovate, acute, shorter than or nearly equalling the dull 
blue corolla; pod 5’’ long or more, somewhat hirsute, 
slender-beaked. 
Prairies, Nebraska and Colorado to Texas and New Mexico. 
May-June. 
