Micranthi. 274 



4A. Pods in heads and on slender stipes nearly as long as calyx. 

 Flowers minute. 



Pods reflexed and pubejcent. 265 Purnusi, 



243. Astragalus lentiformis Gray Bot. Cal. 1 156 (1876). 

 Pods broadly oblont;', 3 times the calyx, cha^taceous, 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 

 connate 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, with 

 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 flne 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. 

 Leaflets about 10 pairs, 5-10 mm. long, thickish, appearing as if 

 glaucous but minutely ashy, not contiguous. Stems a foot or two 

 long, decumbent, with very short internodes, rather stout, v/oody 

 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 Juai'ez, and 

 Sabinal, Jones. Lower Temperate life zone, and probably Tropical 

 also, growing in open places along creeks. Bloommg in spring and 

 fall. 



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, widely 

 spreading, about a foot long. Pubescence almost none. It is prob- 

 able that this obscure plant from Tepic Mexico belongs here. But it 

 is very poorly described. 



