-j_gg LEGUMINOS^. Astragalus. 



■with purple : pod canescent-puberulent, chartaceous, hardly over 2 lines long, ovate- 

 oblong, obtuse, turgid, broadly and deeply sulcate down the back, the cross section 

 obcordate : ovules and seeds not exceeding 8. — Proc. Am. Acad. viii. 62G. 



Sierra Valley, Lemmon and Bolandcr, June, 1872 : received only from the latter, and apparently 

 not since met with. 



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

 ascending, soon diffuse, a span to afoot long: leaflets 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- 

 llowered raceme : calyx-teeth rather ^lorter 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 at all sulcate on the back, both 

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

 seeded cell into two. 



Sierra Nevada, in Clover Valley, &c., on the borders of California and N. W. Nevada, Lemmon. ■ 



-k- -i- Acaulescent-depressed, on cespitose rootstocTcs : leaflets few. 



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

 barely 2 or 3 inches high in matted tufts : leaflets 5 to 11, or in some leaves only 3 

 and seemingly digitate, from oblong to ovate or obovate (1 to 4 lines long), thick- 

 ish : scape-like peduncles somewhat exceeding the leaves, 2 - 6-flowered : calyx- 

 teeth lanceolate or subulate, shorter than the oblong-campanulate tube : corolla half 

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

 very obtuse, puberulent, 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. 66. 



Eastm-n ranges of the Sierra Nevada, at 8,000 to 11,000 feet, near the borders of California 

 {Torreij), and in the Clover and Humboldt Mountains, Nevada, Watson. 



% % % Pod sessile in and shorter than the calyx, turgid : flowers cajntate. 



47. A. Austinee, Gray. A span high, in dense tufts, silvery silky-pubescent : 

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

 9 to 1 7, oblong or oval-lanceolate, acute or mucronate, 4 or 5 lines long : peduncle 

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

 in a close head : bracts nearly filiform, persistent, nearly equalling the calyx, both 

 white-villous ; the filiform teeth of the latter rather longer than the campanulate 

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

 wings are externally villous-pubescent : pod turgid-oval, chartaceous, hoary-pubes- 

 cent, imperfectly 2-celled, few-seeded, only 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, Lemmon.^ In foliage 

 somewliat resembling ^. Andcrsonii, but more dwarf and condensed, and with capitate flowers 

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

 Mrs. K. M. Austin of Butterfly Valley, who has much hel{)ed on our knowledge of the botany 

 of this portion of the Sierra Nevada, and made interesting observations upon the Pitcher-Plant 

 of the region. 



III. Perennial : persistent leaflets and stipules spiny-tipped. (Kentrophyta, ISTutt.) 



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-siibulate, divaricate : peduncles very 

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

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

 1 - 2-seeded, about 3 lines long. 



