1 ro LEGUMINOSyE. Astragalus. 



Avith purple: pod canesceut-puberulent, chartaceous, hanlly over 2 linos long, ovate- 

 oblon" obtuse, tuigi.l, broadly and deeply sulcato down the back, the cross section 

 obcordato : ovules and seeds not exceeding 8. — Troc. Am. Acad. via. G2G. 



Sierra Vulloy, Lctnmon uiul Bulundcr, June, 1S72 : rucoived only IVoni ihcluttcr, uiul ai.imienlly 

 not since met with. 



45. A. lentifonnis, Gray. Villous-pubescent, and more or less hoary : stems 

 ascen'dingi soon dilluse, a span to a foot long: leallets 11 to 15, from obovate to 

 oblong-spatulate, retuse or emarginate (3 to 5 lines long) : peduncles short, a 

 quarter to half an inch long, seldom equalling the rather dense several - many- 

 flowered i-aceme : calyx-teeth rather shorter and the (apparently yellowish-white) 

 corolla larger than in the preceding : pods broadly oblong, canescently pubescent 

 (3 lines long, almost 2 lines broad), lenticular, not ut all sulcate cm tlio bai'.k, both 

 sutures marginal, but a partition from the dorsal one completely dividing tlie G-8- 

 seeded cell into two. 



Sierra Nevada, iu Clover Valley, ic, on the borders of California and N. W. Nevada, Levimon. 



+- ■+- Acaulescent-dtjjressed, 0)1 cespUose rovtstucks : leaflets few. 



46. A. calycosus, Torr. Silvery-canescent with close-pressed silky pubescence, 

 barely 2 or 3 inches higli in matted 'tufts : leallets 5 to 11, or in some leaves only 3 

 and seemingly digitate, from ublong to ovate or obovato (I to 4 lines long), thick- 

 ish : scape-liko peilundes simiewhat exceeding the loaves, 2 - G-lloworod : calyx- 

 tootli lanceolate or sul)ulate, shorter than the oblong-campanulate tube : corolla half 

 an inch long, yellowish-white, with purple tip to the rounded keel: pod oval-ublong, 

 very obtuse, i)uberulent, 3 or 4 lines long, turgid, chartaceous, slightly sulcate 

 dorsally, 2-celled, about 10-seeded, barely twice the length of the calyx. — Watson, 

 Bot. King Exp. GG. 



Eastern ranges of the Sierra Nevada, at 8,000 to 11,000 feet, near the borders of California 

 (Toireij), and in the Glover and Humboldt Mountains, Nevada, JVatson. 



* * * Pod sessile in and shorter than the cali/x, turgid : flowas capitate. 

 47. A. Austins, Oray. A span high, in dense tufts, silvery silky-pubescent : 

 stipules scarious and mostly united into one ovate body opposite the leaf : leallets 

 9 to 17, oblong or oval-lanceolate, acute or nnicronate, 4 or 5 hnes long : iteduncle 

 (an inch or two long) mostly longer than the leaf, bearing 10 or 12 sessile llowers 

 in a close head : bracts nearly iiliform, i)ersistent, nearly equalling the calyx, both 

 white-villous ; the Iiliform teeth of the latter rather longer than the cami)anulato 

 tube, and nearly wpialiing the (pale or whitish) corolla, of which the standard and 

 wings are externally villous-pubescent: pod turgid-oval, chartaceous, hoary pid)es- 

 cent, imperfectly 2-celled, fow-seuded, oidy 2 lines long, not equalling the calyx- 

 teeth and the marcescent corolla, the transverse section almost circular. 



Summit of Mount Stanford (Castle Peak), Nevada Co., at 9,000 feet, Lcmmon. In foliage 

 somewhat resembling A. Andersonii, but more dwarf and condensed, and with capitate flowers 

 (only 3 or 4 lines long) ; most of all related to A. Spaldimjii of Idaho and Oregon : dedicated to 

 Mrs. R. M. Austin of Butterfly Valley, who lias much helped on our knowledge of the botany 

 of this portion of the Sierra Nevada, and made interesting observations upon the 1 itcher-1 lant 

 of the region. 



III. Perennial: persistent leaflets and stipules spiny-tipped. {Kentroj)hyta , Nutt.) 

 48. A. Kentrophyta, Gray. Hoary with very minute silky pubescence, cespi- 

 tose, rigid : stems much branched, mostly prostrate, somewhat woody at base : lower 

 stipules membranaceous or scarious, the upper rigid and pungent : leaves crowded 

 on the branchlets : leaflets 5 to 7, acerose-subulate, divaricate : peduncles very 

 short, 1 - 3-flowered : calyx-teeth subulate-setaceous : corolla whitish or tinged with 

 violet, 2 lines long: pod ovate, acuminate, turgid-lenticular, 1 -celled, 3 - 4-ovuled, 

 1 - 2-seeded, about 3 hues long. 



