480 MISC. PUBLICATION 42 3, U. S. DEPT. OF AGRICULTURE 



19. Astragalus newberryi A. Gray, Amer. Acad. Arts and Sci. Proc. 



12: 55. 1876. 



Xylophacos newberryi Rydb., Torrey Bot. Club Bui. 32: 662. 

 1906. 



Apache County to Mohave County (probably also Yavapai County) 

 2,000 to 6,500 feet, dry stony mesas, April, type from the " frontiers 

 of Utah and Arizona" (Newberry in 1858). Western New Mexico 

 to Nevada and northern Arizona. 



This and the next species are peculiar in this acaulescent group 

 because of their pods being densely villous with long soft hairs. 



20. Astragalus blyae (Rose) Tidestrom, Biol. Soc. Wash. Proc. 48: 



40. 1935. 



Xylophacos blyae Rose ex Rydb., North Amer. Fl. 24: 303. 

 1929. 



Mohave County, type from near Kingman (Mrs. Bly in 1927), 

 3,500 to 5,000 feet, March and early April. Known only from 

 Arizona. 



Specimens collected near Hackberry, Mohave County (Kearney 

 and Peebles 11299) are almost intermediate between this and A. 

 newberryi. 



21. Astragalus tetrapterus A. Gray, Amer. Acad. Arts and Sci. Proc. 



13: 369. 1878. 



Pterophacos tetrapterus Rydb., Fl. Rocky Mount. 507, 1063. 

 1917. 



Near Bonelli Ferry, on the Colorado River near the mouth of 

 Virgin River, Mohave County (Jones in 1894). Southern Utah and 

 Nevada, and northwestern Arizona. 



The remarkable winged pods distinguish this from all other species 

 of Astragalus in Arizona. The plant is reported to be poisonous. 



*22. Astragalus lonchocarpus Torr., U. S. Rpt. Expl. Miss. Pacif. 4: 



80. 1857. 



Lonchophaca macrocarpa (A. Gray) Rydb., North Amer. FL 

 24: 312. 1929. 



Not known definitely to occur in Arizona but has been collected at 

 Fort Wingate, New Mexico, and near Kanab, Utah, not far from the 

 Arizona State line. Colorado, Utah, and New Alexico. 



23. Astragalus kaibensis M. E. Jones, Contrib. West. Bot. 10: 64. 



1902. 



Lonchophaca kaibensis Rydb., North Amer. FL 24: 314. 1929. 



Known only from the type collection at House Rock, Coconino 

 County (Jones in 1890). 



24. Astragalus humistratus A. Gray, PL Wright 2: 43. 1853. 



Batidophaca humistrata Rydb., North Amer. Fl. 24: 315. 1929. 



Apache, Navajo, Gila, and Cochise Counties, chiefly in the White 

 Mountain region, also in the Huachuca Mountains, 7,000 to 8,500 

 feet, in pine forests, July to September. Southern Colorado to Arizona 

 and Chihuahua. 



