120 MINNESOTA BOTANICAL STUDIES. 



Astragalus palmer i A. Gray. Proc. Am. Acad. 7:398. 



1868. 

 Tragacantha palmeri OK. Kev. Gen. PI. 2:947. 1891. 



Arizona. 



Astragalus episcopus Wats. Proc. Am. Acad. 10:346. 

 1875. 

 Tragacantha episcop a OK. Rev. Gen. PL 2; 944. 1891, 



Utah. 



Astragalus diversifolius A. Gray. Proc. Am. Acad. 



6:230. n. 102, 1866. 



Homalobus orthocarpus Nutt. in T. and G. Fl. 1:351. 1838. 

 Not A. orthocarpus Boiss. Diag. I. 9:68. 



A. juncetis A. Gray. Proc. Am. Acad. 6:230, n, 103. 1866. 



Homalobus junceus Nutt. in T. and G. Fl. 1 : 351. 1838. 



Tragacantha juncea OK. Rev. Gen. PI. 2:945, 1891. 

 Not A. junceus Ledeb. in Spreng. Syst. 3:297. 



Colorado, Utah, Wyoming and Nevada. 



Astragalus decumbens (Nutt.) Gray. Proc. Am. Acad. 

 6 : 229. 1866. 



Homalobus decumbens Nutt in T. and G. Fl. 1 : 352. 1838. 

 Tragacantha decumbens OK. Rev. Gen. PL 2:944. 1891. 



Colorado, Wyoming, Montana and British Columbia. 

 Astragalus serotinus A. Gray. Pac. R. Rep. 12:51, 1860. 



Tragacantha serotina OK. Rev. Gen. PL 2:948. 1891. 

 Washington. 



Astragalus convallarius Greene. Erythea. 1 : 207. 1893. 



A. campestris A. Gray. Proc. Am. Acad. 6: 229. 1866. 



Homalobus campestris Nutt. in T. & G. FL 1: 35L 1838. 



Tragacantha campestris OK. Rev. Gen. PL 2: 943. 1891. 

 Not A. campestris LiNN. Spec. 761. 1753, 

 which is a synonym of Spiesia campestris OK. Rev. Gen. PI. 

 1 : 206. 1891, a European species. 



Homalobus tenuifolius Nutt. in T. & G. PL 1 : 351. 1838. 

 Not A. tenuifolius Linn. Spec. Ed. ii. 1065. 1763, 

 a synonym of 



A. onobrychis hn^N . Spec. 760. 1753, 

 a species of Eastern Europe, Siberia and the Orient. 

 Not A. tenuifolius Desf. FL Atlant. 2: 186. 1800, 



