106 
Missouri—Nuttall; Willard; T. A. Culbertson (1850); G. C. 
Broadhead (1873); Potosi, Riehl (1846); Allentown, G. W. 
Letterman (1875); Buckley. 3 
Kansas—Manhattan, Bertha Hederstrow (1892); Fort Riley, E. 
E. Gayle (1892); Topeka, B. B. Smyth, No. 341 (1891); Man- 
hattan, Kellerman (1888). 
Minnesota—Upper St. Peter’s, C.C. Parry (1848); Cannon Falls, 
Sandberg, No. 344 (1891). 
Indian Terr—M. A. Carleton, No. 112 (1891). 
Dakota—Box Elder Creek, Rusby (1887). 
Texas—Ch. Wright; Dallas, Reverchon; Elihu Hall, No. 121; 
Hempstead, Elihu Hall, No. 128 (1892); Freestone Couk 
Joor, No. 15 (1878); Prairies of the Rio Grande, Emanuel — 
Meyer; near Nagadoches, Leavenworth; Parry. oe 
Louistana—Camp Sabine, Leavenworth (1837). 
18. PSORALEA HYPOGEHA Nutt. 
Psoralea hypogea Nutt.; Torr. and Gray, Fl. N. Am. 1: 30? 
(1838). Type in Herb. Columbia College. 
Psoralea hypogea var. scaposa A. Gray, Bost. Journ. Nat. Hist. 
4: 175 (1850). Type in Herb. Gray. 
Roots ovoid, globose or fusiform, 3-4 cm. long, the whole 
plant sometimes 10 cm. high; stem with a few scarious scales; — 
petioles usually much longer than the leaflets; leaves 5—7-foli” 
late; leaflets 2-5 cm. long, 5-7 mm. wide, linear-lanceolate, 0 
linear-oblong, acutish, glabrous or with a few scattered haus 
above, appressed white hirsute beneath ; flowers in capitate racemes 
varying from nearly sessile to somewhat exceeding the leavess 
bracts scarious, ovate, acute, hirsute; calyx-lobes lanceolate, cusPr 
date, hirsute, the two upper lobes shorter than the lower ones, the 
middle one of which is broadly lanceolate; pod over 1 cm. long 
somewhat hirsute, with a long slender attenuate beak ; seed ovol® 
about 5 mm. long, wrinkled, reddish brown. a 
Differing from P. esculenta in its smaller size, more rigid . 
appressed hairs, and narrower leaflets. The pubescence of 
esculenta is silky, often nearly woolly and more spreading. __ 
Nebraska—Platte Plains, Nuttall (type). ee 
Indian Terr—Canadian River, Gordon (1848). 
Colorado—Colorado Swamps, Jones, No.934, (1879); Sandy 
| Greene (1872). bots ea 
