Astragalus. LEGOIIKOS^E. I.3.3 



tmr>' to the narrow and externally prominent sutures ; the cross section transversely 

 oblong (4 or 5 lines by 2 or :3) : seeds numerous. 



Indian and Sierra Valley, in the northeastern part of the Sierra Nevada, Lcmmon, ifrs. P 

 sifer Antes. Flowers in July. To this ray probably belongs the Astragalus from the interior 

 of Oregon, mentioned in Torr. & Gray, Fl. i. 69i, under Pluica Icucophylla ; but the legumes of 

 the latter are shorter and oblong-ovate. 



b. Pods terete, straight, narrow, thin-coriaceous, grooved on the back and that suture 

 intruded so as to divide the cell or nearly so, and render the cross section cordate!// 

 2-lobed. 



40. A. atratus, Watson. A span to a foot high, loosely branching, slender, 

 cinereous-puberulent or glabrate : leaflets 7 to 15, linear or oblong, 2 to 5 lines 

 long: peduncles elongated, 5 — 10-flowered ; the flowers usually sparse (half an 

 inch long) : teeth of the calyx shorter than the campanulate tube: corolla curved, 

 whitish 01 the keel violet-tipped: pod pendulous, sboit-stipitate in the calyx, slen- 

 der (about 9 lines long and barely 2 in diameter), puberulent : seeds 10 to 20. — 

 Bot. King Exp. 69, t. 11. 



X. \V. Nevada, Watson. Not found so near California as the next, which is very nearly related 

 to ii. Well marked among these species by the short stipe of the pod, wholly within the tube 

 of the calyx. 



41. A. obscurus, Watson, 1. c. Resembles the preceding : flowers more crowded 



in the short spike- : keel-petals lunger and narrower, equalling the wings: pod ses- 

 sile in the calyx, only half an inch long, fewer-seeded, erect or nearly so, terete, 

 straight. 



Near the eastern borders of the State: rocky foot-hills near Truckee Pass, Watson. Eagle Y.d- 

 ley, Nevada, Stretch. 



= = Numerous flowers crowd,, / in ,1 dense cylindrical or oblong spike: , 

 densely spicale: stem erect: leaflets numerous, 21 or more. 



12. A. Mortoni, Xutt. Two feet high or less, minutely appressed-pubescent, 

 greenish: leaflets oblong (half to an inch long): lowers nearly sessile, reflexed as 

 they open, but the fruit erect: corolla dull greenish-whito or ereaui-color, half an 

 inch long: pods of nearly the same length, minutely pubescent, elongated-oblong, 

 2-celled, grooved at the dorsal suture, but the ventral one externally prominent : 

 seeds numerous. — Gray, Proc. Am. Acad. vi. 196. A.' Canadensis, var. Mortoni, 

 Watson, 1. c. 



Moist grounds, along the eastern ranges of the Sii rra Nevada, from Mono Lalci north- 



ward to the interior of Oregon and Utah, Noted by Mr. Lemmon as "a deadly sheep poison." 



13. A. pyenostachyus, 1 tray. A foot or more high, rather stout, sofl pubescent : 

 leaflets hoary with a villous pubescence, oblong 1 tb ml half an inch long) : Bowers 

 closely sessile in a very dense oblong or cylindraceous -pike : pods retrorsely imbri- 

 cated, ovate, acute, slightly Battened laterally and margined by the slender prominent 

 sutures, one-celled, the walls thin-coriaceous, coarsely reticulated, glabrous: 

 lew; the ovules only •">. — Proc. Am. Acad. vi. 527. 



Sail marshes, Bolinas Hay, Bolander, L863. Not elsewhere or sinci Uectcd. Flowers appar- 

 ently whitish and only ."> lines long. 



++ ++ ++ Flowers and few-seeded 2 celled pods both small, 2 or •"> lines long: stigma 

 capitate: stems diffuse or decumbent, flowering abundantly almost from tin ban 

 upwards: stipules ovate or the upper triangular: petioles short. 



1 1. A. Lemmoni, < ir.iy. Minutely appi en: stems slender. 



.1 foot or two long, soon procumbent : leaflets 9 to 1 I, linear-oblong, mucronute ( I or 

 5 lines long): peduncles filiform, rather shorter than the leaves (an inch or two 

 lor )■ Bowers rather numerous in a dense 1 dyx with 



mbulate teeth full) equallin the short-companulute tube: corolla whitish tinge. 1 



