76 
BOTANY. 
the campanulate calyx-tube longer than the teeth and about equahng the 
stipe ; legume 4-6" long, chartaceous, exserted, flat, glabrous, oblong, sutures 
about equally curved, reflexed, 1-celled, about 6-ovuled, 2-4-seeded. — From 
Colorado and the plains of Nebraska north to latitude 65° ; at Santa Inez, 
Southern California, (Antisell.) East Humboldt Mountains, Nevada, and Bear 
River Valley, Utah ; 6-10,000 feet altitude ; July, August. (285.) 
Astragalus tegetaeius. Perennial, dwarf, caespitose, canescent with 
a silky pubescence ; stems 2-6' long, numerous and branched, from a much 
branched caudex, procumbent ; stipules membranous, mostly acuminate, 
sheathing; leaflets 3-5 pairs, 2-3" long, linear, acute; peduncles slender, 
about equahng the leaves, 1-3-flowered; flowers small, 2-3" long, ochro- 
leucous, the keel purplish ; calyx-teeth as long as the campanulate tube ; 
legume 2-3" long, chartaceous, sessile, compressed, pubescent, ovate-oblong, 
straight, erect, 1-celled, 6-ovuled, 1-2-seeded. — Peaks of the East Humboldt 
and Clover Mountains, Nevada ; 11-12,000 feet altitude ; July-September. 
Plate XIII. Fig. 7. A stem ; natural size. Fig. 8. Parts of the flower. 
Fig. 9. Mature legume.. Fig. 10. A legume opened; all enlarged four 
diameters. (286.) 
Astragalus campestets. Gray ; 229. Perennial, minutely pubes- 
cent or glabrate ; stems 3-15' high, numerous, ascending, slender, simple ; 
stipules, at least the lower ones, membranous and sheathing ; leaflets 5-9 
pairs, 3-9" long, linear, linear-lanceolate or oblong, usually acute ; pedun- 
cles slender, exceeding the leaves, 5-10-flowered ; flowers A" long, subcap- 
itate, ochroleucous, tinged with violet, the keel with a purple long and narrow 
inflexed tip ; legume J-1' long, chartaceous, sessile, subpuberulent, subcom- 
pressed, oblong-linear, nearly straight, (the ventral suture gibbous,) the pedi- 
cel at last reflexed, 1-celled, 10-15-ovuled. — Eocky Mountains of Colorado, 
and northward, (Geyer.) Uinta Mountains, Utah ; 8,000 feet altitude ; July, 
August. (287.) 
Astragalus junceus. Gray ; /. c, 230. Perennial, minutely pubescent 
or subglabrous ; stems usually solitary, erect, paniculately branched, slender ; 
stipules small ; petioles slender, sometimes 6' long, usually naked, or with 
1-5 pairs of linear leaflets ; peduncles longer than the leaves, 3-7-flowered ; 
flowers 4" long, distant, ochroleucous or tinged with violet, the keel remark- 
ably incurved ; calyx-teeth usually small and obtuse, shorter than the cam- 
panulate tube; legume (1-1 i' long) as in the last; pubescent. — Colorado 
