158 MINNESOTA BOTANICAL STUDIES. 



Astragalus flariflorus (OK.) 



Tragacantha flaviflora OK. Rev. Gen. PI. SJ: 941. 1891. 

 A. flavus NuTT. in T. and G. Fl. 1: 335. 1838. 

 Not A. flavus (H. and A.) Sheld. ined.^ - 

 Colorado and western Wyoming. 



§ 19. Galegiformis. 



Astragalus racemosus Pursh. Fl. Amer. Sept. 740. 

 1814. 



A. galegioides 'NvTT. Gen. 2:100. 1818. 

 Tragacantha racemosa OK. Rev. Gen. PL 2: 947. 1891. 



Kansas, Nebraska, Colorado, Utah, Idaho and the North- 

 west Territory. 



Astragalus atropubescens Coulter and Fisher. Bat. 

 Gaz. 18:300. 1893. 

 Montana. 



Astragalus nilsellus Wats. Proc. Am. Acad. 21:449. 



1886. 

 Oregon. 



Astragalus howelli A. Gray. Proc. Am. Acad. 15:46. 



1880. 

 Oregon. 



Astragalus scopulorum Porter and Coulter. Syn. Fl. 



Colo. 24. 1874. 



A. subcompressus A. Gray in Brandegee. Fl. S. W. Colo. 234. 



1876. 

 Tragacantha scoimlovum OK. Rev. Gen. PI. 2:948. 1891. 

 Tragacantha suhcompressa OK. Rev. Gen. PI. 2:948. 1891. 

 Colorado. 



Astragalus rasus n. sp. 



Perennial, glabrous throughout, or very slightly pubescent 

 on the young leaves and stems; stems 3 to 4.5 dm. high, erect, 

 simple or once or twice branching, striate, often purplish 

 tinged; leaves 4 to 7 cm. in length, the rachis slightly chan- 

 nelled; leaflets 7 to 10 mm. in length, in ten to thirteen pairs, 



12. The synonymy of this species will be: 

 Astragalus^ flaAni»$ (H. and A.) 



Phacaflava H. and A. in Hook. Bot. Misc. 3: 186. 1833. 



