—- 
ASTRAGALUS. LEGUMINOS A. 151 
thick-coriaceous, sessile, ovate-oblong, acuminate, somewhat arcuate, 
terete or somewhat obcompressed and frequently sulcate ventrally, ru- 
gosely reticulated and subpubescent, 1-celled, many-seeded. Idaho to 
New Mexico.and Arizona. ) 
A. reventus Gray |. c. xv, 46. Stems short, numerous, from a thick 
perennial root, much branched from the base, glabrate: stipules scarious, 
connate lanceolate, 2-3 lines long; leaves numerous, 4-6 inches long or 
more, leaflets 21-23, linear-oblong to oblong,.emarginate, pubescent be- 
neath, smooth above, 5-6 lines long: peduncles at length exceeding the 
leaves; flowers whitish, in a dense short-oblong raceme, erect in bud but 
soon reflexed; bracts scarious,’'triangular, a line long: or more, a little 
longer than the pedicels; calyx campanulate, pubescent with blackish 
hairs, its subuiate teeth not more than half as long as the tube: pods ses- 
sile or nearly so, erect on stout pedicels, cartilaginous, reticulated, 8-10 
lines long, glabrous, ovate-oblong, turgid, acuminate, obcompressed but 
the sutures prominent, several-seeded. Open plains and hillsides, eastern 
Oregon and Washington. / 
A. conjunctus Watson Proc. Am. Acad. xvii, 371. Stems short, nu- 
merous, from a stout perennial root, erect or assurgent, sparingly ap- 
pressed-pubescent: leaves 6-12 inches long; leaflets 11-21, on an elongated 
rachis, linear, 4-6 lines long: peduncles elongated, 6-12 inches long, but 
little or not at all surpassing the leaves, bearing an open few-flowered ra- 
ceme; bracts subulate, about equalling the very short pedicels; calyx 
narrowly tubular, 3-4 lines long, pubescent with dark-colored hairs, the 
narrow teeth not half as long as the tube; petals purple, 6-8 lines long: 
pods erect, sessile, coriaceous, rugose narrowly oblong, nearly straight, 
acuminate, l-celled, the dorsal suture impressed, 9-12 lines long.. On dry 
rocky ridges, John Day valley, Eastern Oregon. 
A. Hoodianus Howell Eryth. i, 111. Canescent with a short ap- 
pressed pubescence: stems strictly erect, 4-6 inches high, froma stout 
perennial root; leaves 6-8 inches long; leaflets 21-29, linear to narrowly 
lanceolate, very shortly petiolulate, 6-8 lines long; stipules subulate, 3-4 
lines long; peduncles very stout, 10-16 inches long; flowers whitish, in a 
rather short raceme, 8-10 lines long; bracts setaceous, twice as long as the 
stout pedicels; calyx cylindrical, 4-5 lines long, pubescent with white ap- 
pressed hairs, its setaceous teeth nearly as long as the tube: mature pods 
pubescent, oblong, shortly acuminate, sessile, 8-10 lines long, erect. Open 
woods and plains, Oregon and Washington, near The Dalles. 
A. Palousensis Piper Bot. Gaz. xxi, 489. Perennial, from a stout 
woody caudex: 16-24 inches high, simple, or branched aboye, striate, 
sparingly pubescent with short appressed hairs, these white below and 
blackish above: leaves 4-8 inches long; stipules deltoid-acuminate ; leaf- 
lets 25-31, elliptical or lanceolate, obtuse or truncate, appressed-pubescent 
beneath, glabrous above, 6-10 lines long, nearly sessile: petioles sparsely 
hirsute; racemes elongated, 3-7 inches long, flowers 20-25, erect on short 
pedicels, 8 lines long; bracts lanceolate, shorter than the calyx: calyx 
obliquely campanulate, the slender teeth nearly as long as the tube, pu- 
bescent with short appressed black hairs: corolla pale yellowish, with or 
without a black spot on the lateral petals: pods 10 lines long, crustaceous, 
narrowly oblong, tipped with a slender short beak, its surface transversely 
reticulated and sparsely pubescent with short white hairs, on a stipe as 
long as the calyx tube or shorter. Common on rich loess hillsides about 
Pullman, Washington. 
§ 13. Popo-scterocarptl. Gray 1. c. 225. Pod thick-cartilagi- 
nous or coriaceous, exsertly stipitate, compressed or turgid, in- 
curved ; sutures not intruded, sometimes thickened and separat- 
ing from the valves. Perennial, branched, ashy-puberulent ; sti- 
pules small, distinct. ; 
