275 Micranthi. 



246. Astragalus Greggii Watson Proc. Am. Acad. 17 341 

 (1882). Pods sessile, 1-2 cm. long, 2-3 mm. high, 1 mm. wide, 

 broadly linear, reticulated, narrowly and shallow sulcate dorsally 

 equally arcuate or arched most belo->v, triangular-acute, smooth, 

 laterally flattened, completely 2-celled, erect, inclined to be naj- 

 rowed below and resembling A. leptoc£.rpus. Flowers 6-9 mm. lorsg^ 

 2-4 in a head or short raceme, light-purple, much arched as in A, 

 junceus. Banner round, 5 mm. long, abruptly erect. Wings ob- 

 liquely obovate, 2 mm. shorter than banner. Keel arched in a hall 

 circle and 1-2 mm. shorter than the wings. Calyx woolly, oblique„ 

 with teeth subulate, unequal, curved and as long as tube. Bi-acts 

 small, ovate. Pedicels almost none. Peduncles subterminal, slen- 

 der, 3-7 cm. long. Leaves 2-5 cm. long. Leaflets 4-8 pairs, con- 

 tiguous, greener above, obovate to oval or oblong, obtuse to notcheds 

 woolly to nearly smooth, 2-7 mm. long. Stipules connate below, 

 triangular. Internodes 2-3 cm. long. Stems very slender, flexuous„ 

 about a foot long or more, prostrate to spreading, seemingly peren- 

 nial from underground stems, dense and woolly and white on the 

 stems and young parts, the hairs spreading or reflexed. This has 

 the habit of A. Nuttallianus but pods are higher and the pubescence 

 is woolly, also like A. Lindheimeri but with smaller pods and floweis 

 and loose pubescence, the pods are about those of A. leptocarpus. Im 

 the mountains of Coahuila, Zacatecas and Nuovo Leon, Mexlec^ 

 Tropical. 



247. Astragalus Luisanus n. sp. Pods oblong-ovate to broadlj 

 linear, 7-10 mm. long, a little arcuate, 2-3 mm. high and ^ids-^ 

 sometimes 5 mm. wide, rather obcompressed, nearly smooth wh&m 

 ripe, tapering into a sharp and upturned beak about 2 mm. Icrig,,, 

 sulcate dorsally. Flowers 5-7 mm. long, broad, few. Banner 0Ta£„ 

 about 4-7 mm. long, arched abruptly at calyx tips to erect, wijjk 

 sides reflexed about 1 mm. wide below. Wings broadly linear, 1.3' 

 lanceolate, about straight and as long as banner, or arched to 45\ 

 about 1 mm. wide and 2 mm. longer ihan keel. Keel about 4 mia. 

 long and 3 mm. high, arched nearly from base to over a half circl-e,, 

 the very obtuse tip rather hooked. Calyx nigrescent, about equally 

 inserted, about 2 mm. long, campanulate, teeth triangular and 

 about as long as tube. Bracts hyaline, hairy, nearly as long as 

 calyx tube. Pedicels almost none. Peduncles filiform, 5-7 cm. lorig„ 

 Leaves 3-4 cm. long, the upper sessile. Leaflets elliptical, obtuse 

 to barely acute, silvery-silky with fine and closely appressed rather 

 long hairs, 5-8 pairs. Stipules connate above, small. Stems slender, 

 weaK, a lew mcnes long, irom a woody base and stout root, rather 

 densely leafy and with short internodes. Central Mexico, blooming 

 in June, probably Middle Temperate life zone. The types are 

 Purpus plants Nos. 3208 from near Oaxaca Mexico, and 2477 from 

 Esperanza in the State of Puebla. 



248. Astragalus Pueblae Jones Cont. 14 35 (1912). Pods 

 broadly linear, about 1 mm. wide, a trifle wider above, thin, witli 

 cross section narrowly-cordate-triangular, deltoid-apiculate, rounded 

 at both ends and very blunt, ashy, sulcate dorsally except at tip 

 and base; ventral suture straight except at the convex tip and 

 base, the point a little above the middle of the end, thickened but 

 not raised. Flowers purple, broad. Banner white, broadly oblocg; 

 and notched strongly, about 3.5 mm. long, with sides reflexed closely,, 

 arched to 45° at calyx tips and abruptly. Wings obliquely-ovater 

 large for the flower, about 1 mm. wide and 1 mm. longer thara 

 keel, purple-tipped. Keel a little declined, half-deltoid-ovate, about 

 2 mm. long, purple, the straight but not erect tip very broad and 

 barely acute. Calyx teeth rather subulate, about half as long as 

 tube, unequal, tube not oblique nor unequally inserted. Bracts 

 minute and scarious. Pedicels filiform, about 2 mm. long. Pedun- 

 cles nearly erect. Leaves 5-7 cm. long, ashy, lax, short-petioled, 

 spai-se. Leaflets 4-5 pairs, hardly 1 cm. long, linear and folded, 

 distant. Stems nearly filiform, lax, many, branched, with the long- 



