Leptocarpi 268 
ás long as tube. Bracts rather longer than the pedicels which are 
about 2 mm. long in fruit. Peduncles 2-3 cm. long and spreading. 
Leaves 4-7 cm. long, nearly sessile, spreading. Leaflets 6-8 pairs, 
narrowly-oblong-cuneate, contiguous, rarely 1 cm. long, ashy with 
minute pubescence. Stipules scarious, the upper green, broad at 
base, subulate. Stems many, relatively rather stout, diffuse, much 
branched. Plains of western Texas to Monterey, Mexico. 
236. Astragalus leptocarpus T. & G. Fl. 1 354 (1838). Hamosa 
Rydberg. Hamosa macilenta Small. Pods rather obcompressed 2- 
celled except at tip, indifferently spreading but mostly ascending, 
about 2 mm. high and 2-3 mm. wide, 2-3 em. long, nearly straight, 
shallow-sulcate dorsally, smooth, narrowly linear, triangular-acute 
and point in line with ventral suture. Flowers 3-7, closely clus- 
tered in flower, a little racemose in fruit, about 1 cm. long, purplish. 
Banner broadly obovate, with narrow furrow down the back, about 
6 mm. long, arched abruptly at calyx tips to nearly erect. Wings 
‘obovate to oblanceolate, arched, about 2 mm. shorter than banner 
‚and 1 mm. longer than keel. Keel about 4 mm. long and high, the 
base straight and then abruptly erect and tip acutish and out-turned 
‘a little. Calyx tube campanulate, equally inserted, rather oblique 
‘at tip, about 2 mm. long, sometimes somewhat nigrescent, teeth tri- 
angular, mostly a little shorter than tube, not longer.  Bracts 
2 mm. long, about as long as fruiting pedicels. Peduncles 3-10 
em. long. Leaves 3-7 cm. long, short-petioled. Leaflets hardly 
contiguous, 4-10 mm. long, 2-4 mm. wide, cuneate-obovate to nar- 
rowly oblong, 5-10 pairs. Stipules about 4 mm. long, thin, subulate. 
Stems delicate and widely branched below, flexuous, with internodes 
2-5 cm. long. This appears to hybridize with A. Nuttallianus. 
Nearly throughout Texas and southward to Central Mexico. Tropical. 
j .237. Astragalus tener Gray Proc. Am. Acad. 6 206 (1864). 
A. hypoglottis var. strigosus Keliogg. Pods nigrescent when young, 
nearly straight in the type, rigid, 1-2 cm. long, about 3 mm. wide 
and high, nearly smooth when ripe, short-pointed, broadly sulcate 
dorsally, inclined to be bisulcate above along the ventral suture, 
round to obcompressed in cross section. Flowers 4-9, purple- 
tipped, 5-7 mm. long. Banner oblong, 3-4 mm. long, abruptly 
srched at calyx tips to erect, with sides reflexed, about twice as long 
as keel, and 1-2 mm. longer than wings. Wings broadly linear, 
rather arched, about 1 mm. wide. Keel narrow but arched from near 
the base to over a half circle, about 1 mm. wide, the deltoid tip 
about 1.5 mm. high. Calyx tube from turbinate to campanulate, 
acute at base, about 1 mm. long, the triangular teeth as long as 
tube to a half shorter. Bracts white, rather ovate, about 1 mm. 
long. Pedicels almost none.  Peduncles spreading, 3-4 cm. long, 
Shorter than leaves. Leaves 3-5 cm. long when mature, the lower 
ones about half petiole, numerous.  Leaflets 4-7 pairs, linear to 
cuneate-linear, notched in the type.  Stipules small, triangular, 
scarious. Stems nearly filiform, a foot or less high. Pubescence 
sparse and minute. In valleys from the Sacramento valley to San 
Diego, blooming in April or soon after rains. A very variable 
Species. 
Astragalus tener var. Bruce, n. var. Pods faleate, about 2 em. 
long and 4 mm. high, rather papery, broadly linear, triangular 
pointed, conspicuously flattened laterally, shortly taper-pointed with 
flat tip, mottled, narrowly suleate dorsally and not at all ventrally, 
erect. Flowers few. Calyx tube 2 mm. long, the teeth half the 
tube. Leaflets, 3-4 pairs, cuneate-obovate to almost deltoid, obcor-- 
date, all the petioles half the leaf. Stems prostrate. Stipules very 
. broad for the plant and conspicuous, 2-3 mm. long, sometimes al- _ 
. most round. No. 2430 Mrs. Bruce, plains of Butte Co., blooming in 
ur many I Dale Denak rg rte Hio rio ege s ig dign ng, 
