241 Ocreati. 



and the flowers much elongated and often nearly yellow. This is 

 the common form throughout the Navajo Basin far up on the Little 

 Colorado eastward into its New Mexican and Colorado borders and 

 down the Colorado to the edge of Nevada and up the Virgin in 

 Utah. Lower Temperate life zone and dropping down a little into 

 the Tropical. Also along the Sevier river near Richfield and Salina, 

 Utah. 



Astragalus confcrtiflorus var. flaviflorus (Kuntze). Traga- 

 cantha flaviflora Kuntze Rev. Gen. 2 941 (1892). A. flavus Nuttall, 

 Cnemidophacos Rydberg. This has the leaves of the species but 

 inclined to have narrowly oblong and flat leaflets, the lowest very 

 short and broad. Upper leaves much the best developed. Pods 7-12 

 mm. long, generally twice the calyx, ovate to oblong oval, variably 

 pubescent with curved hairs, about straight, retuse at base, minutely 

 stipitate, broadly and rather deeply sulcate dorsally and the su- 

 tures nearly touching. Flowers 12-15 mm. long, in the type cream 

 colored and with rather short and mostly ovate banner, but var- 

 iable. Wings linear, narrower than keel, a little arched, 2-3 mm. 

 longer than keel. Keel a little arched along the claw, the blade 

 abruptly incurved at the end to erect and very obtuse, the upper 

 corner being about square or very rounded and not at all pro- 

 duced, the general outline being oblanceolate, straight. Calyx short- 

 cylindric, the tube nearly 5 mm. long. Peduncles 1.5-3 dm. long, 

 strict, stout and sulcate, appearing as if subscapiform. Spikes loose, 

 1-1.5 dm. long. 10-15-flowered. Leaflets broadly linear to narrowly 

 ellintical, rather acute, nearly smooth above. Stems short and 

 with short internodes, diffusely branched and decumbent, 1.5-2 dm. 

 long. Deserts of southern Wyoming, Lower Temperate life zone. 



202. Astragalus argillosus Jones Zoe 2 241 (1891). Pods 

 scarcely surpassing the calyx lobes, erect, ovate to oval, blunt, hoary 

 with long and appressed hairs, about 7 mm. long, much obcom- 

 pressed till cross section is nearly linear, a little arched, with dorsal 

 suture deeply impressed toward the base and raised and prominent 

 at tip and conspicuously thickened; the ventral suture inconspicu- 

 ous. Flowers short, about 9 mm. lon-g, densely spicate even in fruit, 

 almost sessile, pink-purple. Banner oval, abruptly arched below 

 calyx tips to 45°, purple and with white spot strongly veined, 5 mm. 

 longer than keel and 2 mm. longer than wings. Wings narrowly- 

 oblong, a little arched, rouiided, purple, dark-veined toward the tip, 

 narrower than the keel. Keel short, about as long as calyx tips, 

 straight, with tip abruptly erect and deltoid. Calyx tube short- 

 campanulate, not 5 mm. long, white with very long and appressed 

 hairs which toward the tip and on the lobes are widely spreading and 

 shaggy. Hairs flat, twisted, with pustulate base, attached by the 

 end. Calyx lobes subulate from a broad base, 9 mm. long, lax, 

 green, longer than the tube. Bracts large, 9 mm. long, green, lin- 

 ear-subulate, about equaling the calyx. Spikes very dense, 2.5-7 

 cm. long. Peduncles 5-15 cm. long, slender, subscapiform, as long 

 as leaves. Stipules connate nearly to tip, green (hyaline below) 

 long-acuminate, densely appressed-villous as well as stems. Pet- 

 ioles grooved. Leaves 5-10 cm. long, narrow. Leaflets narrowly 

 linear to oblong, 2.5-3 cm. long, 2-5 mm. wide, silvery, 4-G pairs, 

 acute to apiculate, greener than the rest of the plant. Stems caespi- 

 tose, ascending, rather stout for the plant, short, flexuous. 2.5-20 

 cm. long, biennial or short-lived perennial, whole plant 1.5-3 dm. 

 high, appressed-silvery-silky even to the stipules. On sandy clay soil 

 along the Green river and San Rafael Swell, Utah, and vicinity. 

 Lower Temperate life zone. 



203. Astragalus Moencoppensis Joncs Zoe 2 12 (1891). Pods 

 5-7 mm. long, 3 mm. wide, with cross-section nearly transversely 

 linear, with sutures not thick nor prominent, hoary, about as long 

 £»s c-Iy:: and tcclh, acute, oblong-oval, barely sulcate dorsally, 



