Micranthi. 276 
internodes nearly as long as the leaves, flexuous, prostrate or widely 
spreading. Stipules not connate, triangular, 2-3 mm. long. Root 
apparently perennial. Plants with the habit of A. Nuttallianus. 
‘Esperanza Puebla Mexico, Purpus, No. 5645. Probably Tropical. , 
249. Astragalus Pringlei Watson Proc. Am. Acad. 21 449 
(1886). Pods oblong, 7-10 mm. long, about 3 mm. wide and 2 
mm. high, abruptly and strongly apiculate, with ventral suture 
straight and in line with it, broadly sulcate dorsally, with cross 
section broadly and narrowly (vertically) reniform. Flowers white 
or purple-tipped, 8-12 mm. long, loose. Banner arched a little 
beyond the calyx tips, 2-3 mm. longer than wings, with sides re- 
flexed below. Wings broadly linear, a little arched, 2 mm. longer 
than keel. Keel narrow, about 3 mm. long, gently arched from base 
to 45-90°, and with rounded and dark tip about 2 mm. high. 
Calyx tube 3-4 mm. long, about 2 mm. high, with straight base 
and convex upper side, oblique at base and acute and attached by 
the lower corner, not oblique at tip nor deeper cleft, teeth trian- 
gular and nearly half as long as tube. Pedicels slender, about 1 
mm. long and about as long as the ovate bracts. Peduncles 2-3 
em. long, filiform, axillary. Leaves about 2 cm. long, nearly half 
is petiole. Leaflets 5-7 pairs, linear to obovate, obtuse, 2-3 mm. 
‘long, not contiguous, thick, ashy with minute and fine short hairs 
or greener above. Stems prostrate, only a few inches long, with 
short internodes. Stipules small, not connate. The flowers and pods 
‘are quite variable in size. Tropical, blooming in April. On the 
plains near Chihuahua City, Mexico. y 
250. Astragalus parvus Hemsley Bot. Cent. Am. 1 266 (1880). 
Pods linear, about 1 cm. long and hardly 2 mm. high, apiculate, 
spreading, sulcate narrowly along the dorsal suture which is straight, 
‘and the tip in line with it, the ventral suture convex. Flowers 
‘purple, about 7 mm. long. Banner about 5 mm. long, arched abruptly 
" sat calyx tips to 45-90°, with sides reflexed below, about 3 mm. 
longer than wings. Wings oblong, arched, about 1:mm. longer 
than keel. Keel with entire blade erect, 2 mm. long and high, the 
front rounded to over a half circle, very obtuse. Calyx tube about 
2 mm. long, narrowed below, little oblique attached below the mid- 
dle to a slender but minute pedicel, the triangular teeth about half 
‘as long as tube. Bracts minute. Peduncles 2-3 cm. long, longer 
than the leaves, subterminal. Leaves 3-5 em. long, spreading, only 
‚the uppermost sessile. Leaflets 6-9 pairs, oblong, distant, obtuse, 
2-4 mm. long, short-petiolulate. Stipules very small, broad, green, 
not connate. Stems rather many from a thick root, decumbent, a 
few inches long, with short internodes. San Luis Potosi Mexico, 
‘Lower Temperate life zone, in open places. ite 
251. Astragalus Schaffneri n. sp. Pods about 1 cm. long, 3 
nearly filiform, flexuous, widely spreading, freely branched below 5 | 
and open, from slender woody rootstocks, about a foot high, with : 
