105 
Mexico—Near San Luis Potosi, Shaffner, No. 833; Hartweg, No 
62; San Luis Potosi, Parry and Palmer, No 142; near Chi-. 
huahua, Pringle, No. 17. 
17. PSORALEA ESCULENTA Pursh. 
Psoralea esculenta Pursh, Fl. Am. Sept. 475 (1814). Type in 
Herb. Acad. Phila. 
Psoralea esculenta Fras. Cat. (1813), name only. 
Psoralea brachiata Douglas; Hooker Fl. Bor. Am. 1: 137, ¢. 
53 (1829). 
Root fusiform, 5 cm. or more long, not farinaceous; stems 
‘rect, spreading or assurgent, 1-3 dm. high, sometimes acaulescent, 
with a few scarious scales below, hirsute with somewhat weak 
hairs ; stipules 2 cm. or more long, ovate-lanceolate, ciliate, rarely 
foliaceous ; petioles longer than the leaflets; leaves 5-foliolate; leaf- 
lets 2-6 cm. or more long, 1-2% cm. wide, oblong-cuneate, obtuse 
or acutish, sometimes mucronulate, glabrous above, hirsute be- 
neath; flowers crowded in oblong spikes 3-8 cm. long on pe- 
uncles mostly much longer than the leaves (rarely only as long); 
Facts I-14 cm. long, ovate-lanceolate, cuspidate, hirsute ; calyx- 
lobes 1-114 cm, long, foliaceous, hirsute, becoming coriaceous 
with age, the tube strongly gibbous on the upper side, the the 
upper lobes shorter than the lower ones; pod enclosed in the 
calyx, hirsute, with the beak nearly 3 times as long as the 6 mm. 
long black seed. 
The Pomme de Prairie and Pomme blanche of the Canadian 
Voyageurs, 
Saskatchawan—Bourgeau (1858). 
Northwest Terr—Moose Mt., Macoun; Parry (1848,; Nicollet, 
No. 169. 
Montana Tweedy (1889). 
fowa Emmet Co., Cratiy, s 
Wisconsin Black Earth, Hale (1861); Arena, Hale; Dane Co., 
J. A. Lapham (1858). 
Nebraska From Niobrara River to Fort Pierre, Hayden (1859) : 
Sage Creek, Hayden (1859); Bad Lands, Hayden (1853) 5 os 
Fort Clark, Hayden (1856); Omaha, Smech (1893); bootie oe 
_ Wood; T. A. Williams ; Kearney, Mrs. A. A. Austin ; Fort ‘peat ne. 
brara, Wilcox ; Lancaster Co., Webber. en ae 
