Sheldon: SPECIES of astragalus. 139 



Astragalus sabuloiium A. Gray. Proc. Am. Acad. 13: 



368. 1878. 



Nevada. 



Astragalus suksdorfii Howell. Erythea. 1 : 111. 1893. 

 Washington. 



Astragalus cerussatus n. sp. 



Perennial, sparsely pubescent throughout with white, loose 

 hairs; siems 2 to 3 dm. high, erect-spreading, striate; haves 4 

 to 5 cm. in length, the rachis channelled; leajlets 5 to 12 mm. 

 in length, in five to eight pairs, narrowly oblong, emarginate; 

 strpulcs triangular-acuminate, becoming refiexed; peduneles 

 slender, exceeding the leaves, finely striate, loosely three to 

 five flowered; floioers 4 to 5 mm. in length, spreading or reflexed; 

 calijx campanulate, slightly pubescent, the spreading, filiform 

 teeth longer than the tube; corolla ochroleucous tipped with 

 purple; legume 12 to 20 mm. in length, horizontal or ascending, 

 thin-chartaceous, inflated, ovate- oblong, pointed, finely reticu- 

 lated, often xDurplish colored, but not mottled, nearly glabrous, 

 unilocular, but with the ventral suture intruded nearly to the 

 center of the cavity, eight to ten seeded. 



Collected on the mountain sides near Canon City, Fremont 

 county, Colorado, by J. E. Bodin, June and July, 1890; also 

 near Royal Gorge, Colorado, by Miss Alice Eastwood, June, 

 1891. 



This species is nearly related to Astragalus suksdorfii 

 Howell, and Astragalus icefJierilU Jones, and may be regarded 

 as intermediate between the two. 



Astragalus wetherilli Jones. Zoe. 4:34. 

 Colorado. 



Astragalus inyoensis Sheld. Contrib. Nat. Herb. 4:86. 

 1893. 

 California. 



Astragalus pulsiferae A. Gray. Proc. Am. Acad. 10:69. 

 1875. 



Tragacantha pulsiferae OK. Rev. Gen. PL 2 : 947. 1 891. 

 California. 



