CATALOGUE. 73 
Mountains, and on sand dunes at Cooper's Ferry, near Humboldt Lake, 
Nevada; May. (276.) 
Astragalus Hookerianus, Gray; I.e., 215. Perennial, silky-pubescent ; 
stems low, (2-4',) ascending, flexuous; stipules lanceolate, lower ones mem- 
branous and sheathing; leaflets 6-9 pairs, 2-3'' long, oblong or linear- 
oblong, or orbicular; spikes short, few-flowered; corolla ochroleucous, 
4-5" long ; calyx-tube campanulate, the teeth short ; legume 1-2' long, 
membranous, inflated, oblong-obovate, rounded at the apex, attenuate at base 
into a short stipe, mottled, glabrous, 1 -celled.— Collected only by Douglas in 
the ''interior of Oregon," and by Anderson (273) in the West Humboldt 
Mountains, probably on Star Peak, where it grows in the crevices of lime- 
stone rocks at an elevation of 10,000 feet; in flower and fruit, September. 
A dwarf species of very distinct habit, and easily distinguished by its large 
obtuse legume. (277.) 
Astragalus oophorus. Perennial, glabrous throughout; stems 1-2° 
long, numerous, subdecumbent ; stipules ovate-acuminate, nearly free; leaflets 
4-6 pairs, 6 9" long, ovate-oblong, obtuse; racemes short, loosely few-(6-10-) 
flowered ; flowers \' long, ochroleucous or tinged with violet, spreading ; 
calyx-teeth setaceous, equaling the campanulate tube ; legume 2' long, mem- 
branous, inflated, ovate, (the sutures equally arched,) acuminate, upon a stipe 
equaling the calyx, reflexed, mottled, glabrous, 1-celled.— Near A. curtipes, 
G-ray. Reese River Pass of the Shoshone Mountains, Nevada; 5,500 feet 
altitude; July. (278,) 
Astragalus jejunus. Perennial, dwarf, minutely hoary-pubescent; 
stems short (1-2' long) and crowded, from a many-branching caudex, covered 
with numerous imbricated stipules, which are membranous, sheathing, trun- 
cate and cihate ; leaflets 4-7 pairs, linear, 1-2" long ; peduncles shorter than 
the leaves, 2-3-flowered ; corolla ochroleucous or tinged with violet, 2" long ; 
calyx-teeth a little shorter than the campanulate tube ; legume 4" long, mem- 
branous, inflated, globose, obtuse, sessile, glabrous, wholly 1-celled. — An in- 
significant species with a starved desert habit, but remarkable for its singu- 
larly stipuled stems and obtuse legumes ; growing on the foot-hills of Bear 
River Valley, near Evanston, Utah. Plate XIII. Fig. 1. A stem; natural 
size. Figs. 2-5. Parts of the flower ; enlarged four diameters. Fig. 6. 
Mature legume, opened; enlarged two diameters. (279.) 
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