CONTRIBUTIONS TO WESTERN BOTANY. 657 



or very nearly SO, 2)^" wide, i%" thick, obcompressech, 

 very slightly sulcate ventrally, and broadly so dorsally, 

 but not deeply, 2-celled except at the apex, velvety- 

 pubescent with very short hairs, about one-third longer 

 than the calyx and teeth, barely splitting the calyx tube. 



Astragalus asclcpiadoides Jones. Mr. Sheldon places 

 this species under a new section, ^^Asclepiadodes'' (1. c. 

 9, 159), in his provisional list, completely ignoring the fact 

 that I had previously (Zoe 2, 238) made a section for it 

 and called it '■'■ Pachyphyllics^' (PachyphyUa by typo- 

 graphical error). 



Asti'agalus U7' sinus Gray. 



No. 5095ah. April 23, 1894, ^^p of grade, four miles 

 above Pagumpa, Arizona, 5000° alt., in gravel, among 

 junipers. 



This plant appears to be identical with A. arietinus 

 when growing, but the 2-celled pod would place it else- 

 where; when dry the greatly compressed, almost vetch- 

 like pod is strikingly different. Stems often single, never 

 many in a place, prostrate or ascending, always ascend- 

 ing in flower; flowers seem to be identical with those of 

 arietinus, but paler; pods linear-oblong, cross section 

 obovate-emarginate, wall fleshy and soft, the pulp 3^" thick 

 and the pods i^" thick, ventral edge grooved, dorsal 

 edge neither grooved nor ridged externally, but dorsal 

 septum produced nearly to the ventral suture, the septum 

 thin and white, and manifestly double; pod reddish, 

 15^-2' long, arcuate to ^ of a circle, contracted but ob- 

 tuse at both ends; seed cavity small and completely filled 

 by the seeds, which are on stalks i" long; pods on re- 

 flexed pedicels, but arcuate so that the apex is ascending; 

 stipules very large, blunt and sheathing below, mostly 

 hyaline, almost reniform below, ovate above ; bracts ovate, 

 i)^" long; pedicels almost none; peduncles 4' long; 



