Astragalus. LEGUMINOS^. -[ r r 



trary to the narrow aiul externally prominent sntures ; the cross section tmnsversely 

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



Indian and Sien-a Valley, in the noitlieastern part of the Sierra Nevada, Lcmmon Mrs Pal 

 sifer Ames. Floweis in July. To this very probably belongs the Astragalus from the intei-ior 

 of Oregon, mentioned in Torr. & Gray, Fl. i. (JM, under PJuica leucox>hylla ; but the Icumes of 

 the latter are shorter and oblong-ovate. ° 



b. Fods terete, straight, narroio, thin-coriaceous, grooved on the hack and that siiture 

 intruded so as to divide the cell or nearly so, and render the cross section cordateln 

 %lobed. ^ 



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

 cinereous-puberulent or glabratc : leaflets 7 to 15, linear or ol)long, 2 to 5 lines 

 long: peduncles elongated, 5 - 1 0-flowered ; the flowers usually sparse (half an 

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



.whitish or tlie keel violet-tii)ped : pod pendulous, short-stipitate in tlie calyx, slen- 

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



Bot. King Exp. G9, t. 11. 



N. AV. Nevada, Watson. Xot found so near California as the next, which is very nearly related 

 to it. 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 longer 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 Tass, Watson. Eagle Val- 

 ley, Nevada, Stretch. 



= = Numerous Jloivers crowded in a dense cylindrical or oblong spike: jwds aim 

 densely spicate: stem, erect : leaflets numerous, 21 or mo;r. 



42. A. Mortoni, Nutt. Two feet high or less, minutely aj)pressed-pubesc('iit, 

 greenisli : leailots uljlong (half to an inch long) : flowers nearly sessile, reflexe.l as 

 they open, but the fruit erect : corolla dull greenish-white or cream-color, half au 

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

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

 seeds numerous. — Gray, Proc. Am. Acad. vi. 19G. A. Canadensis, \m: Mortoni, 

 Watson, 1. c. 



Moist grounds, along the eastern ranges of the Sierra Nevada, from Mono Lake {Brcxccr) north- 

 Avard to the interior of Oregon and Utah. Noted by Mr. Lemmou as "a deadly sheep poison." 



43. A. pycnostachyus, Gray. A foot or more high, rather stout, soft-inibesoent : 

 leaflets hoary with a villous pubescence, oblong (about half an ineh long) : flowers 

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

 cated, ovate, acute, slightly flattened laterally and margined by the slender jirominent 

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

 few; the ovules only 5. — Proc. Am. Acad. vi. 527. 



Salt marshes, Bolinas Bay, Bolander, 1863. Not elsewhere or since collected. Flowers appar- 

 ently whitish and only 5 lines long. 



-i-i- -i"i- -!-+ Flotvers and fexv-seeded 'l-celled i^ods both small, 2 or 3 lines long : stigma 

 capitate : stems diffuse or decumbent, floioering abundantly almost from the base 

 ujnvards : stiptdes ovate or the iqjjjer triangidar : petioles short. 



44. A. Lemmoni, Gray. Minutely appressed-pubescent, green : stems slender, 

 a foot or two long, soon procumbent : leaflets 9 to 11, linear-oblong, mucronate (4 or 

 5 lines hmg) : petluncles flliform, rather shorter than the leaves (an incli or two 

 long) : flowers rather numerous in a dense oblong raceme : calyx with setaceous- 

 subulate teeth fully equalling the short-campanulate tube : corolla whitish tinged 



