Catalogue. 71 



West Humboldt Mountains ; 4,500-6,000 feet altitude ; April -June. Closely 

 related to both A. Parryi and A. Beckwithii. (269.) 



An interesting form occurs with the legumes more coriaceous, lees 

 arcuate, not mottled, and irregular in the intrusion of the dorsal suture, 

 becoming at times essentially the same as the legume of A. Beckwithii. 

 The variation is so great as to show that too much reliance must not be 

 placed on the form of the legume in determining the species of this section. 

 Near Salt Lake City and on Antelope Island, Utah ; May, June. (270.) 



AsTEAGALUS Beckwithii, T. & Gr. Oray^s Rev., I. c, 221. Perennial, 

 glabrous or nearly so ; stems 1-2° long, diifusely spreading ; stipules ovate- 

 lanceolate, adnate to the petioles; leaflets 6-12 pairs, 6' long, broadly oval; 

 flowers (5-8) in a short loose raceme, ochroleucous, 9" long ; calyx-teeth 

 subulate, scarcely shorter than or exceeding the nearly glabrous campanulate 

 tube ; legume 1' long, glabrous, transversely rugulose, coriaceous, •short- 

 stipitate, somewhat obcompressed, flattened dorsally with the suture slightly 

 intruded, bisulcate ventrally with the prominent suture acutely margined, 

 many-seeded. — Salt Lake Valley. Found in Ruby Valley, Nevada, and on 

 Antelope Island, Salt Lake ; June, July. (271.) 



AsTEAGALXJS PTEEOCARPUS. Perennial, somewhat hoary with a minute 

 pubescence; stems 1-2° long, decumbent, branched; leaflets 1' long, 

 2-4 pairs, distant, linear; peduncles longer than the leaves; racemes short 

 and rather few-flowered ; legume 1-1^' long, J' wide, coriaceous, glabrous, 

 sessile, strongly obcompressed (compressed at the a]3ex,) ovate, acute, later- 

 ally winged, rugose-veined transversly, slightly sulcate dorsally, the dorsal 

 suture nearly meeting the somewhat depressed ventral one, many-seeded. — 

 A well-marked species, remarkable for its broad obcompressed legumes, 

 which are margined their whole length with an entire wing a line in breadth.; 

 flowers i' long ; collected only in fruit. Grrowing in alkaline soil near the 

 . junction of Reese River with the Humboldt, Nevada ; June. Plate XII. 

 Fig. 1. A stem ; natural size. Fig 2. Section of the legume ; enlarged two 

 diameters. (272.) 



AsTEAGALTJS EEIOCAEPUS. Perennial, canescent with a dense subap- 

 pressed hirsute-silky pubescence, acaulescent ; leaflets 4-7 pairs, 4^6" long, 

 obovate, somewhat acute, or often retuse ; the scape-like curved peduncles 

 (2-6' long) equaling the leaves ; flowers (3-6) loosely capitate, large (1' long,) 

 deep-purple, twice longer than the cylindrical calyx ; calyx-teeth subulate- 



