76 BOTANY. 



the campanulate calyx-tube longer than the teeth and about equaling 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 tegetakius. Perennial, dwarf, csespitose, canescent v^^ith 

 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 equaling 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 campestrts, Gray ; I. c, 229. Perennial, minutely pubes- 

 cent or glabrate ; steins 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 4" 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. — Rocky Mountains of Colorado, 

 and northward, (Greyer.) 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 (1-14' long) as in the last; pubescent. — Colorado 



