Micranthi. 274 
4A. Pods in heads and on slender stipes nearly as long as calyx. 
Flowers minute. : 
Pods reflexed and pubescent. 265 Purpus', 
243. Astragalus lentiformis Gray Bot. Cal. 1 156 (1876). 
Pods broadly oblong, 3 times the calyx, chartaceous, not wrinkled, 
very slightly sulcate dorsally, normally reflexed though sometimes 
ascending, completely 2-celled, woolly-pubescent, both sutures prom- 
inent externally. Cross-section narrowly to broadly ovate-cordate, 
partition very broad. Flowers white like those of A. Lemmoni, 
about 5 mm. long. Banner broadly elliptical, 3-4 mm. long, arched 
abruptly to 60° at the end of calyx tube, 2 mm. longer then the 
wings, sides reflexed. Wings lanceolate, arched and concealing 
keel, obtuse. Keel rounded from the base to the tip into almost 
half a circle, barely exceeding the calyx teeth, with short blunt and 
erect tip. Calyx tube woolly, Hedeoma-like, hemispherical, arched, 
cleft deeper above, 2 mm. long, teeth rather shorter than the tube 
and the lower the longer. Pedicels almost none in flower, 1 mm. 
long in fruit. Bracts hyaline, ovate-acuminate, 2 mm. long. 
Peduncles 7-15 mm. long, about half as long as the leaves, stout, 
seldom as long as the rather dense racemes. Leaves 2-4 cm. long. 
Petioles short. Leaflets 5-7 pairs, obovate to oblong-spatulate, re- 
tuse to emarginate, smoother above, 4-10 mm. long. Stipules not ' 
eonnate except below and larger there, adnate, 2-3 mm. long and 
rather large, ovate or the upper triangular. Stems prostrate, slen- 
der, barely grooved, much branched, a few inches long, flowering 
abundantly from all the nodes, internodes not over 2.5 cm. long. 
Pubescence fine, loosely villous, appressed, more or less hoary, wit 
slender long and echinate hairs fixed by the base. Root erect, 
much branched. Middle Temperate life zone, growing in the sage- 
brush. Sierra Valley California to Crook Co. Oregon. 
244. Astragalus Madrensis n. sp. Pods broadly to narrowly 
linear, 1-1.5 cm. long, about 2 mm. high and 1 mm. wide, some- 
what laterally flattened except at base, abruptly apiculate to shortly- 
acuminate, narrowly-sulcate dorsally, strongly reflexed. Flowers 
few, about 1 cm. long, reflexed. Banner oval and striped with pur- 
ple, abruptly erect at calyx tips and with sides reflexed below, 
about 5 mm. long. Wings obovate and veined, about as long as ban- 
ner and 4 mm. longer than keel, nearly straight. Keel about 3 
mm. long and high, deltoid and obtuse. Calyx about 3 mm. long 
and 2 mm. high, with straight base and convex upper side, nearly 
truncate below and attached by the lower fleshy corner, not narrowed 
below, the triangular teeth a little shorter than the tube, ashy 
with fine and short hairs. Pedicels 2-3 mm. long and equaled by the 
triangular bracts. Peduncles about 5 cm. long, shorter than the 
leaves, axillary. Leaves about 1 dm. long, all short-petioled, many. 
Leafiets about 10 pairs, 5-10 mm. long, thickish, appearing as 
glaucous but minutely ashy, not contiguous. Stems a foot or two 
long, decumbent, with very short internodes, rather stout, woody 
below and branched, with the habit of A. bisulcatus. Stipules subu- 
late from a deltoid base, small. Rather common in the Sierra 
Madres of Chihuahua Mexico, San Diego Canon, Colonia Juarez, and 
Sabinal, Jones. Lower Temperate life zone, and probably Tropical 
s growing in open places along creeks. Blooming in spring an 
245. Astragalus ervoides. H. & A. Bot. Beech 417 (1841). 
A. apertus Sheldon, A. Tepicus Sheldon. Pods linear, smooth, acute. 
Flowers 10-12, about 12 mm. long, with petals about twice the calyx, 
white. Calyx broadly campanulate, about 3 mm. long, with short 
and black-hairy teeth and pedicels. Peduncles axillary, longer than 
the leaves. Leaflets 7-8 pairs, about 12 mm. long, linear-oblong and 
obtuse. Stipules lanceolate and small. Stems slender, : ; 
de qee , about a foot long. Pubescence almost none. It is prob- = 
able that this obscure plant from Tepic Mexico belongs here. Butit 
is very poorly described. ee p 
