CONTRIBUTIONS TO WESTERN BOTANY. 64I 



small, upper enlarging, all connate opposite the petioles, 

 lanceolate, acute, uppermost 3" long, somewhat h3^aline; 

 nodes i' apart; peduncles at least equaling the leaves, 

 fully as thick as the stems, erect or ascending, sulcate; 

 flowers capitate, about 20, 6" long, spreading, purple, on 

 pedicels, i " long; bracts large, oval to obovate, green, 

 nigrescent, 2" long; calyx tube campanulate, i}4" long, 

 i" wide, green, with broad triangular green lobes nearly 

 as long; banner obovate to oblong, blade 3" long, ascend- 

 ing 45° in a gentle curve from calyx tips, sides reflexed 

 }4," wide; wings i" wide, narrowly oblong, ascending, 

 concealing keel, ^" shorter than banner, fully i" longer 

 than keel; keel a little downwardly arched, bent at tip 

 abruptly to 90° and vertical edge straight, i}i" high, 

 acutish, purple tipped, veined; pod membranous, i-celled, 

 6" long, 2" wide, elliptical, apiculate, round in cross-sec- 

 tion apparently, not sulcate, stipitate on stipe as long as 

 calyx tube, pendent, smooth, seed bearing throughout. 

 Manifestly closely allied to A. ahoriginuni. Described 

 from duplicate type in National Herbarium. 



Astragalus serpens. 



No. 56391. July 17, 1894, Loa Pass, Utah, 7500° alt., 

 in gravel, among sagebrush. 



Perennial, from a thick, erect, woody, much-branched 

 root, whose stems for several inches in length endure over 

 winter and are covered with dead leaf-petioles and even 

 leaves and peduncles; stems prostrate at base, ascending 

 at tip, 2-10' long, in rather dense tufts, much branched 

 below, leaves reduced above and also below, all petioled, 

 petioles nearly equaling the rachis, the whole being sel- 

 dom over i^' long; leaflets about 6 pairs, elliptical and 

 folded, 2-3" long; whole plant finely pubescent with ap- 

 pressed hairs fixed at the ba^; nodes very short, 6" long 

 or less; peduncles iV long or less; flowers 2-5 on stout 



