Sheldon: species of astragalus. 131 



Not A. pectinatus Boiss. Diag. i. 2: 54. 1843.5 



Prom the Saskatchewan west to the Rocky mountains; south 

 in the United States to Montana, Wyoming, Kansas, Nebraska 

 and Colorado. 



§ 7. BiSULCATUS. 



Astragalus jepsoni Sheld. Bull. Minn. Geol. & Nat. 

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



Astragalus demissus GuE.E.iU'EL. Erythea, 1:221. 1893. 

 Not Astragalus demissus Boiss. & Heldr. in Boiss. Diag. i. 2: 50. 1849, 



a synonym of Asfragalus amoenus Fenzl. Pugil. PI. Nov. Syr. 

 4. 1842, a Cilician plant. 

 Nevada. 



Astragalus scobinatulus Sheld. Bull. Minn. Geol. and 

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



Astragalus haydenianus A. Gkay. var viajor Jo'Ses. Zoe. 2:241. 

 1891. 

 Not Astragalus glabriusculus A. Gray. var. ?/icf/'or A. Gray. Proc. Am. 

 Acad. 6: 204. 1866. 

 Astragalus haydenianus A. GRAY. var. nevadensis Jones. Zoe. 2: 

 241. 1891? 

 Not .4 , nevadensis Boiss. Diag. i. 2 : 63. 1849. 

 Nevada. 



Astragalus haydenianus A. Geia.y. in Brandegee. F1. 



S. W. Colo. 235. 1876. 



Tragacanthahaydeniana OK. Rev. Gen. PI. 2: 945. 1891. 

 New Mexico, Colorado and Utah. 



Astragalus hisulcatus (Hook.) A. Gray. Pac. R. Rep. 

 1 2 : 42. 1860. 



Phaca bisulcata lloOK. Fl. Bor.-Am. 1:145. 1833. 

 Tragacantha bisulcata OK. Rev. Gen. PI. 2: 943. 1891. 



Nebrasl^a. Colorado, Wyoming, Montana and the Saskatche- 

 wan, 



§ 8. Microcystis. 



Astragalus huniillimus A. Gray, in Brandegee. Fl. 

 S. W. Colo. 235. 1876. 



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

 Colorado. 



Tlie synoiiomy of this species becooies: 

 Astragali!!^ odiuoiidi (OK.) 



Tragauintha edmitndi OK. Rev. Gen. PI. 58:041. 1891. 



A. pectinatus Bo\»». Ding. i. 2: 94. 1843. 



*4. e/ejiinfiifits Gkeene. Erytliea. 1 ::i07. 1893, 



