Astragalus. LEGUMINOS^. Jgg 



trary to the narrow and externally prominent sutures ; tlie 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, Lemmon, Mrs. Pal- 

 sifer yhncs. Flowers in July. To this very probably belongs the Asl.rn/jalu.t from the interior 

 of Oregon, mentioned in Torr. h Gray, Fl. i. 694, under Pliaca kucophi/ll'a ; but the legumes of 

 the latter are shorter and oblong-ovate. 



b. Pods terete, straif//it, narroiv, thiii-coriaceous, grooved on the back and tliat suture 

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



1-Iohrd. 



40. A. atratUS, Watson. A n\v,\\\ to a Coot liigh, loosely liranoiiin^', slender, 

 cinereous puberulcnt or f,dabratc : Icailets 7 to If), linear or oblong, 2 to 5 linos 

 long: peduncles elongated, 5 - lO-flowercd ; the llowers usually sparse (half an 

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

 whitish or the keel violet-tipped : pod pendulous, short-stipitate in the calyx, slen- 

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

 Bot. King Exp. 09, t. 11. 



N. W. Nevada, Watson. Not found so near California as the next, whieli is very nearly related 

 to it. Well marked among these species by tlio short stijie of the pod, wholly within the tube 

 of the calyx. 



41. A. obscurus, Watson, 1. c. Kesembles 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 tlic eastern Iwrdcrs of the State : rorky foot-hills near Truckce Tass, Walsoii. Eagle Val- 

 ley, Nevada, Stretch. 



= =^ Numerous fioivers crowded in a dense cijlindrical or ohlonr/ spike : pods also 

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



42. A. Mortoni, Nutt. Two feet high or loss, minutely appressed-pubescent, 

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

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

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

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

 floods numnrous. — (Jray, Proc. Am. Acad. vi. 19(5. A. Camidensis,\M'. Mortoni, 

 Watson, 1. c. 



Moist grounds, along the eastern ranges of the Sierra Nevada, from ]\Tono T-ake (Bracer) north- 

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



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

 leaflets hoary with a villous pubescence, oblong (about half an inch 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 prominent 

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

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



Salt marshes, Bolina.s Ray, Bnlander, 18G3. Not elsewhere or since collected. Flowers apiiar- 

 ently whitish and only 5 lines long. 



++ ++ ++ Flowers and few-seeded 2-ceUed pods hoth^small, 2 or 3 lines long : stigma 

 capitate : stems diffuse or decumbent, flowering ahundtnitly almost from the base 

 upwards : stipules ovate or the upper triangular : j^ctioles short. 



44. A. Lemmoni, Gray. Minutely npiirosscd-puboseont, green : stems slender, 

 a foot or two long, soon pro(!umbont : leaflets 9 to 1 1, linear-oblong, mucronato (4 or 

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

 long) : flowers rather numerous in a dense oblong raceme : r^ilyx with setaceous- 

 snliulate teeth fully e(pialling the short campanulafe tube : cnrolln whitish tinged 



