98 
‘ 
Zexas—Drummond (II.) No. 123; (type); Lindheimer, No. 36 
(1843); El Paso, Vasey (1881); on the Upper Colorado (1854), 
collector. unknown. 
New Mexico—Wright, No. 969?; Cobra Spring, W. B. Pearce 
(1878). 
Arizona—Bear Mts., Rusby, No. 78 (1880); Oak Creek, Rusby 
(1883); Willow Springs, Palmer, No. 512 (1890); Oracle 
Camp, Sta. Catalina Mts., Lemmon (1881); Flagstaff, M. E. 
Jones, No. 3952 (1884); Flagstaff, Tracy and Evans, No. 276 
(1887); Mexican Boundary Survey, No. 218; Fort Whipple, 
Coues and Palmer, No. 83 (1865); Fort Apache, Mrs. R. W. 
Hoyt (1893). 
Mexico—Berlandier, No. 1749 (1828); Cafion of Guadaloupe, Capt. 
E. K. Smith ; Los Nogalos, Sonora, Capt. Smith. 
8. PSORALEA FLORIBUNDA Nuttall. 
Psoralea floribunda Nutt.; Torrey and Gray, Flora N. Am. 1: 
300 (1838). Types (Nuttall) in Herb. Columbia College and 
(Pitcher) in Herb. Acad. Phila. 
Erect 3 dm. to over 1 m. high, profusely branching, canescent, 
not glandular; petioles 5 mm. to 3 cm. long, mostly shorter than the 
leaflets; stipules 3-7 mm. long, subulate, sometimes reflexed; leaves 
3-5 sometimes 7-foliolate; leaflets 1-314 cm. or more long, 3 
mm. wide,.oblong, glandular on both surfaces, glabrous, rugose: 
with a few scattered hairs above, canescent with closely appressed 
white hairs beneath; peduncles 6-14 cm. long; spikes oblong oF 
cylindrical, densely many flowered, the flowers at length inter- — 
rupted and appearing almost as if whorled; bracts 2-3 mm. long, 
lanceolate, hirsute; calyx canescent, the lobes triangular, acute, 
the lower one the longest; pod ovoid, glabrous, light browa — 
covered with darker glands, beak short, stout, straight ; seed 5 mm. 
long, compressed. 
Montana—Belt Mts., Scribner, No. 25. 
Wyoming—Laramie River, R. B. Hetz (1864). os 
Nebraska—Hayden (1853); Fort Pierre, Hayden (1853); Las: ce 
caster Co., Webber (1874). a 
Mlinois—Pekin, Buckley ; Carlisle, Buckley (1838); Augusta, 5» 
B. Mead (1844), a specimen in Herb. Torrey with very lone 
leaves and more slender inflorescence; Athens, Elihu’ Hi 
H. H. Babcock. peas 
