196 



a quarter as long as tube. Bracts small and subulate. Peduncles at 

 iC^st as long as the leaves. Leaves 3-5 cm. long. Leaflets 6-8 pairs. 

 lii;ear-obiong and obtuse, iong-petiolulate, 1-1.5 cm. long, ashy when 

 young. Stipules lineir-lan.."eolate, about 4 mm. long. Stems short 

 and fiexuous. Zacatecas Me.xico. From the description there is little 

 to separate this from A. Antoninus or gracilentus forms. 



157 Actrsfalus Antoninus Watson Proc. Am. Acad. 17 343 (1882). 

 This differs in no particular from A. coriaceus except the stipitate 

 pods being slightly sulcale dorsally. The flowers are about 2 cm. long, 

 i.anncr elliptical, about 7 mm. long, arched abruptly to 45 degrees at 

 end of caiyx teeth, about 4 mm. longer than keel and a little longer 

 dian wings. Wings and keel as in A. gracilentus. Calyx lul e 

 short-cylindric. about 5 mm. long, inserted on the lower corner, an. 1 

 the minute teeih triangul.ir and hardly a quarter as long «^ calyx tubo. 

 The '•ather nubescent pods "^eem to be ascending or spreading. Saltil.o 

 Me>ico, probably Socorro Co. New Mexico, Metcalf. 



168 Astragalus pinonis Jones Cont. 8 14 (1898). Pods straighto- 

 slightly arcuaie below, short-stipitate, oblanceolate, shortly acute : l 

 both ends, 2 cm. long, 4-5 mm. wide and high, corrugated, coriaceou . 

 somewhat inflated, with both sutures narrowed and rounded exte - 

 nally, the ventral suture a little raised, neither suture at all intruded, 

 pods reilexed, with ventral side nearly straight, the dorsal side conve.\. 

 Flowers apparently purple. Banner oval and about as long as kee^ 

 Keel purple-tipped, about 5 mm. long, erect tip, straight, acute, pro 

 duced and nearly 3 mm. high, 2 mm. wide at base, as long as the ob- 

 long wings. Cah^x campanulate-cylindric, narrowed below, the tub • 

 a little over 2 mm. long, the subulate teeth 1 mm. long. Bracts trian 

 gular, 1 mm. long. Pedicels slender, reflexed, 4 mm. long. Pedun- 

 cles 2.5-5 cm. long, shorter than the leaves, racemosely few-flowered. 

 T^'ith rachis from half to as long as peduncles. Leaves 5-7 cm. long, 

 short-petioled. Leaflets linear, rounded at both ends, barely pe:i- 

 olulate, 4-10 pairs, 1-1.2 cm. long, 2 mm. wide, not contiguous. Inter 

 nodes 1.5-2 cm. long. Stipules triangular, small, not over 2 mm. long, 

 distinct, not membranaceous. Stems rather slender, ashy-puberule; t 

 throughout, nearly erect, branched below, rounded, about 2 dm. long, 

 wiry, green (as is the whole plant), but pubescence ashy and tangled. 

 It has the habit of A. atratus and growing in similar places on gravel- 

 ly benches at Frisco Utah. Lower Temperate life zone. It is pos- 

 sible that when better known this may belong to the Lonchocarpi. 



159 Astragalus Neomexicanus W'ootton & Standley Cont. \at. 

 Herb. 16 136 (1913). Pods thick-walled, round in cross-section, dense- 

 ly pubescent when young 'only very immature pods known). Flowers 

 purple, about 2 cm. long, several to many, in racemes which with the 

 peduncles arc 15-25 cm. long. Banner and wings longer than the 

 rounded keel. Bracts linear, 4-6 mm. long. Pedicels 2-3 mm. long. 

 Calyx campanulate, gibbous above, 7-9 mm., long, sparsely pubescent 

 with short black and white hairs, with subulate teeth about a third as 

 long as tube. Leaves 10-18 cm. long. Leaflets about 20 pairs, villous 

 with weak and spreading hairs, elliptical to ovate-lanceolate, acute, 

 10-12 mm. long, smooth above. Stipules triangular-lanceolate, about 

 1 cm. long, connate. .Stems a foot long, ascending, branched from 

 base, perennial. No. 690254 Nat. Herb., from James's Canon Sacra- 

 mento Mts. New Mexico. 7000 ft. alt., July 20 1899, Wooton. This 

 seems to be A. gracilentus. but the poor material makes it doubtful. 



160 Astragalus Sileranus Jones Cont. 2 242 (1891). Pods in the 

 type almo>t leathery, but varying to almost papery in some forms, 

 oblong-oval to globose, normally (in the type) rounded at both ends, 

 straight, horizontal, 1.5-2 cm. long, about 1 cm. wide and nearly as 

 high, a little obcompressed, and slightly oblique, with flat and up- 

 turned beak very short, and with dorsal suture a trifle intruded, and 

 pods about round cross-section, except for the shallow groove along 

 the ventral suture, mottled and very fineh' cross-nerved, evidently in- 

 flated, single to few. Flowers cream-colored, yellowish when dry, 



