271 Leptocarpi. 



Flowers 3-7, remote, whitish or purple-tipped, 4-6 mm. long. Ban- 

 ner oval, arched abruptly at calyx tips to nearly erect, 3-4 mm. 

 long, a little longer than wings. Wings lobed or enlarged at the 

 end, obovate, about as long as keel. Keel with an acute and ascend- 

 ing beak but variable. Calyx tube short-campanulate, 1-2 mm. long, 

 the slender and lax teeth as long as tube. Bracts and pedicels mi- 

 nute. Peduncles 4-10 cm. long, somewhat longer than the widely 

 spreading leaves, in the upper axils. Upper petioles short, the 

 lower 1-2 cm. long. Leaflets 5-7 pairs, broadly oblong-obovate, 

 folded, 4-10 mm. long, very short-petiolulate, thickish and puberu- 

 lent. Stipules deltoid and very small. Stems diffusely branched be- 

 low, with the habit of A. Nuttallianus, a foot or two long. Internodes 

 few and long. On the hot plains from Hawthorne Nevada to Mex- 

 ico along the eastern face of the Sierras and southeastward to the 

 Charleston Mts. Tropical. 



242. Astragalus nothoxys Gray Proc. Am. Acad. 6 232 (1864). 

 Oxytropis Jones. Aragallus Heller. Pods pungently acute, scarcely 

 contracted below, 2-3 mm. high, nearly 2-celled, smooth or nearly 

 so, sulcate to the middle dorsally, nearly erect. Flowers white and 

 purple-tipped, 8-10 mm. long. Banner oblong, 5-7 mm. long, 

 abruptly arched at calyx tips to 80°, with sides reflexed about 1 

 mm. wide below. Wings linear below and with enlai'ged, rounded 

 and obovate tip, 2-4 mm. longer than keel. Keel with arcuate tip 

 2 mm. high, exserted not over 2 mm. beyond calyx tips, the body 

 about 3 mm. long and 1 mm. high. Tipped with a threadlike beak. 

 Calyx tube narrowly campanulate, 3-4 mm. long, with straight base 

 and arched upper side, 1-2 mm. high, cleft deeper above, oblique and 

 thickened at base. The subulate teeth unequal and about half the 

 tabe. Pedicels 2-3 mm. long in fruit, slender, about twice the ovate 

 bracts. Peduncles 5-15 cm. long, appearing as if subscapiform, ax- 

 illary, rachis several flowered and rather short. Leaf petioles from 

 2.5 cm. long to none. Leaflets oval-obovate, mostly notched, thick, 

 mostly flat and appearing as if glaucous, with the pubescence minute, 

 about 6 pairs, 4-7 mm. long. Stipules subulate, green, 2-4 mm. long. 

 Internodes short and plants very leafy, stems a foot or less long, very 

 many and branched below, decumbent at base. Whole plant nearly 

 smooth. Catalina Mts. Arizona. Tropical. Puerta de St. Diego 

 Chihuahua Mexico, Lumholtz. Blooming in April. 



