Sheldon: species of astragalus. 15' 



Astragalus gracilis Nutt. Gen. 2:100. 1818. 



DaZea pa»*vi/?07-a PuRSH, Fl, Am. Sept. 474. 1814. 



Psoralea pan-iflora'PoiR. Suppl. 4: 590. 1816. 



Phaca purviflora Nutt. in T. and G. Fl. 1:348. 1838. 



Tragacantha 2)arviflora OK. Rev. Gen. PI. 2:941. 1891. 



A. parviflorus MacM. Metasp. Minn. Yal. 325. 1892. 

 Not A. parviflora Lam. Ency. Meth- 1 :310. 1783. 

 Colorado to Kansas, Nebraska, Missouri and Minnesota. 



§ 18. OCREATUS. 



Astragalus oreganus Nutt. in T. and G. Fl. 1:335. 



1838. 



Western slope of the Rocky mountains. 



Astragalus accumbeiis Sheld. Bull. Minn. Geol. and 

 Nat. Hist. Surv. n. 9:19. 1894. 



Astragalus procumbens Wats. Proc. Am. Acad. 20:361. 1885. 



Not Astragalus procumbens Hook, and Arn. Bot. Beech. Voy. IS. 



1830.11 



Not Astragalus procumbens Mill. Gard. Diet. Ed. 8. No. 18. 1768. 



which is a synonym of Astragalus pentagloUis Linn. Mant. 247. 

 1767, a native of southern Europe and northern Africa. 

 New Mexico and Arizona. 



Astragalus mohayensis Wats. Proc. Am. Acad. 20:361. 



1885. 

 California. 



Astragalus humistratus A.Gray. PI. Wr. 2:43. 1853. 

 Tragacantha humistrata OK. Rev. Gen. PI. 2: 945. 1891. 

 New Mexico and Arizona. 



Astragalus argillosus Jones. Zoe. 2:241. 1891. 

 Utah. 



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

 368. 1878. 



A.Jlavus Nutt. var. candicans A. Gray. Proc. Am. Acad. 13: 

 54. 1878. 

 Not A. candicans Pall. Astrag. 61. 1800, 



which is a synonym of /Sjji'esia candicans (Pall.) OK. Rev. 

 Gen. 1:206. 1891. 

 Utah. 



11. Tbis iii;iy receive the specific name Astragalus chilensiM n. n. 



