pe 
—— Inflati 101 
cence, "This plant seems to hybridize with A, lentiginosus with which 
if often grows forming the lentiginosus var. Coulteri. Blooming in 
late spring, probably a winter annual at times. Tropical in sandy 
deserts. Common on the Calfornia deserts west of Yuma to Mexico 
and as far west as Indio. 
38. Astragalus Geyeri Gray Proc. Am. Acad. 6 214 (1864). Phaca 
annua Geyer. Pods half-oval, half-ovate, or very broadly lunate, very 
oblique or arcuate and with tip often erect, from smooth to puberulent, 
Sharply acute with a broad triangular to deltoid, incurved and flat 
rather oblique tip, decidedly laterally flattened, except in the middle, 
finely reticulated, rarely sulcate dorsally and then not deeply so, nar- 
rowed at both ends and abruptly so at base, greatly bellied below, the 
ventral suture even concave and the dorsal arched to about a half- 
circle, cross section triangular to deltoid and with rounded base. 
Flowers 3-5, about 7 mm. long, whitish. Banner arched to nearly erect 
at end of tube, about oval, 1-3 mm. longer than the wings, little notched 
with the sides reflexed somewhat, faintly purple-veined, white spot 
Scarcely visible and coming within 1 mm. of the edge all around, 
groove shallow, scarcely narrower below. Wings 1-2 mm, longer. than 
keel, obliquely ovate, obtuse, ascending about 30 degrees, 1-2 mm. wide. 
Keel about 2 mm. longer than calyx, with tip incurved to 100 degrees 
and deltoid, about 2 mm. high. Calyx campanulate, 1-2 mm. long, teeth 
triangular to subulate, green and fully as long as tube. Leaves 7-10 em. 
long, all rather long-petioled, many. Peduncles filiform, 1-2 cm, long, 
axillary almost from the cotyledons. Leaflets linear to elliptical linear, 
7-11 pairs, obtuse to notched, 1-3 cm. long, mostly folded, nearly 
smooth above, cuneate at base, rather distant. Plants ashy throughout 
with fine appressed hairs, but stems the most pubescent. Annuals 
with very slender erect roots and several stems from the crown, 
freely branching, flexuous, with very "many internodes rarely 2 cm, 
long, blooming almost from the cotyledons throughout the season and 
at length becoming small bushy tufts often a foot high with horizontal 
side branches. Rarely blooms as a winter annual. Common through- 
out the Green River and Navajo Basins and throughout the Great Basin 
to the Sierras and northward to the southern side of the Columbia 
Basin, growing in sand on plains, Lower Temperate life zone. At the 
south it is replaced by sabulonum and aridus. 
39. Astragalus Julianus Jones Cont. 7. 667 (1895). Pods obliquely 
oval about 12 mm. long, 7 mm. high from a little inflated to circular in 
„cross section in the middle, beak acuminate, 4 mm. long and nearly 
central, ventral suture thick and not sulcate. Flowers nearly white 
but purple-tipped, in a close raceme which is lax in fruit, nearly ses- 
sile, reflexed, about 7 mm. long. Calyx campanulate, tube 2 mm. long, 
teeth subulate and as long as tube, Peduncles stout, as long as leaves, 
floral rachis as long as the peduncles, Leaves 1 dm. long proper petiole 
1.2-) em. long. Leaflets 7-8 pairs, normally elliptical, acutish, 1.2 cm 
long, 2-3 mm. wide. Inflorescence corymbiform by the shortening of the 
upper internodes, plants mostly shaggy with partly spreading silky 
hairs except the shortly and sparsely pubescent pods. Stems erect or 
decumbent, about 1-2 ft. high. Internodes 13 cm. long. San Julio 
Lower California Brandegee. 
40. Astragalus proriferus Jones. Cont. 5 275 (1893). Pods spi- 
cate, obliquely ovate to oval, 1-2 cm. long 7-10 mm. wide, chartaceous, 
inflated, rounded at base, early splitting the calyx, dorsal suture not 
evident, very convex, ventral little arched and much thickened in 
the middle, cross section broadly obovate, tip very flat and short, 
triangular, beak 4 mm. long. Flowers dark-purple, with lighter keel, spi- 
cate, 1 cm. long. Banner rather large, nearly round, ascending 80 
degrees abruptly beyond the calyx tips, 2 mm. longer than the wings | 
and keel, emarginate. Wings lanceolate, notched; keel 7 mm. long, = 
tip abruptly erect or more incurved, acute, base a little arched. Calyx — 
