broadly ovate and acutish, a little longer than the pedicels but not 

 equaling the calyx. Calyx obconic, rather oblique at tip and base, a 

 little over 2 mm. long, with the triangular black teeth about a third 

 the whole. Banner purple-speckled, about 2-3 mm. long, abruptly 

 arched at calyx tips to nearly erect, about oval b it with sides reflexed 

 from base to tip and seeming oblong. Wings a trifle shorter than 

 banner and arched 45 degrees, bro-adly oblanceolate,. obtuse, not ex- 

 posing keel, white or tinged with purple and a little speckled, keel 

 about 2 mm shorter than br.nner (blade) and gently arched to near 

 the tip and then sharply arched in all to about 200 degrees, then 

 the very broadly deltoid tip erect, purple. Pods hoary, ovate and 

 with cross section rather rounded, about 4 mm. long or less, about 

 1-seeded. Apparently not sulcate nor conspicuously oblique. This 

 has the habit of A. montanus and has doubtless been mistaken for it. 

 Blooms April to May. Gathered by Brandegee on the Mesa Verde 

 Colorado. Apparently common at the Grand Canon of the Colorado 

 rt the end of the railroad on sandy ledges. The floral characters 

 p-e taken from the Grand Canon material. This can at once be 

 separated from montanus by the leaflets jointed to the rachis 



20. Astragalus Gilensis Greene Tor. Bull. 8 97 (1881). Leaflets 

 about 8 pairs, shortly acute, 5-7 mm. long, with the appearance much 

 that of A. humistratus and with hairs not fixed at the ends. Leaves 

 inclined, to spread out on the ground, 5-8 cm. long, rarely more. 

 Prdunclps many, scapose, inclined to be decumbent, 10-12 cm. long. 

 Flowers capitate, about 10, purple, about 7 mm. long. Calyx tube 

 about 3 mm. long campanulate, narrowed below, the subulate teeth 

 nearly as long. Bracts acuminate-lanceolate, ascending, hyaline, about 

 3 mm. long. Banner nearly round, 2-3 mm. long, abruptly arched to 

 erect at calyx tips, with sides much reflexed and rather deeply 

 notched. Wings broadly linear, rounded, arched to 45 degrees and 

 exposing keel base, about 2 mm. shorter than banner and as much 

 longer than keel. Keel almost exactly that of A. humillimus but tip 

 a trifle more acute, about 2 mm long. 1 mm. shorter than win^s, 

 2 mm longer than calyx. Pods about 5 mm long, and a half longer 

 than the calyx, half-oval, the dorsal suture straight and the ventral 

 jiuch arched and very thick, not inflated, laterally flattened and cross- 

 section ellii)tical, sharply and very abruptly apiculate, rigid and hoary 

 with close hairs, both sutures thick and prominent. This has many 

 short branches from the crown and conspicuous stipules overlapping 

 so as to form a narrow cone like mass 1-3 cm. wide, the edges, some- 

 what ciliate but otherwise hyaline and smooth. This has the general 

 anpearance and habit of A. calycosus, but the flowers and pods are 

 of the Sericoleuci. This grows in dry places along the canon, of the 

 Gila in New Mexico and Arizona. Lower Temperate life zone. Also 

 gathered by Parry No. 204 Mex. Bound. Survey at Santa Cruz Pass. 

 Also in the Mogollons Socorro Co New Mex Metcalfe. 



21. Astragalus sericoleucus Gray Am. Journ. Sci. Ser. 2 33 410 

 (1862). Phaca sericea and trifoliata Nutt.. Orophaca serieca (Nutt.) 

 Britton. Tragacantha sericea (Nutt ) Kun^^ze. Pods hoary, about 6 

 mm. long, oblong-ovate, flattened a little laterally but not arched, half 

 Included In calyx, a trifle inflated. Flowers normally purple, near- 

 ly sessile, rarely 1 cm. long, few at the ends of a short peduncle 

 v^hich is rarely as l-u'r as the leaves or even shorter than the sti- 

 r' I'^s. Banner oval to obovate, notchf^d. 4-8 mm. long, abruntly arched 

 at end of calyx to erect or more, with evident white-spot and purple- 

 veined. Wings lanceolate, often oblique, about as wide as keel at base 

 and 2-3 mm. longer and about as much shorter than banner. Keel 

 not surpas"?''ng calvx teeth, with base about straight and erect part 

 as long and arched sharply to at least 90 degrees, obtuse and purple- 



