252 LEGUMINOS^. Astragalus. 



oblong or cylindrical spike : calyx-teetli subulate-setaceous, nearly tlie length of the 

 campanulate whitish-villous tube, much shorter than the curved yellowish-white 

 corolla ; this half an inch long, and the broad claws shorter than the blades : pods 

 pendulous, linear-oblong, falcate or sickle-shaped, half to three fouiihs of an inch 

 long, 2 lines wide, abruptly pointed, soft-downy, 10 - 20-seeded. — Proc. Am. Acad. 

 vi. 524. 



Eastern ranges of the Sierra Nevada, Siema Co. to Washoe Co., Nevada, Anderson, Torrcij, 

 Lcmmon, &c. 



§ 3. Pod neither memhranaceoris cmd hladdery-wflated, nor long-]iair)j or woolly, 



% Consjncuousbj stqntate in the calyx {stipe equalling or much exceeding the latter). 



-{- One-celled pod with both sutures prominent externally arid not within, narrow. 



++ Calyx very ohliquely attached to the pedicel and soon recurved on it : corolla yel- 

 lotvish-white : pod curved, cartilaginous or rigid, not compressed, the cross section 

 ohovate : stems a foot or two long, mostly spreading or decumbent : stijndes small, 

 distinct. 



28. A. cyrtoides, Gray. Soft-pubescent throughout and mostly hoary, rather 

 stout: leaflets 11 to 21, from obovate-oblong and retuse to obcordate, becoming 

 smoother above : peduncles exceeding the leaves : flowers numerous in a dense 

 spike-like raceme : calyx downy ; the teeth not half the length of the oblong-cam- 

 panulate tube : pod oblong-linear, pubescent, an inch or more in length, on an 

 ascending slender stipe of half an inch or more, either falcate or at length curved 

 into a ring ; the thick cartilaginous valves very turgid at maturity, obscurely retic- 

 ulated. — Proc. Am. Acad. vi. 201 & 525 ; Watson, Bot. King Exp. 75. 



Eastern side of the Sierra Nevada, Placer to Sierra Co. and eastward (Anderson, Lcmmon), 

 and W. Idaho, Spalding. Corolla half an inch long. 



29. A. speirocarpus, Gray. Minutely cinereous-pubescent : stems rather 

 slender : leaflets 9 to 17, obovate and oblong, emarginate : flowers less numerous 

 and crowded than in the preceding : calyx barely puberulent ; the teeth not a 

 quarter of the length of the cylindraceous tube : pod glabrous, tapering at base 

 into a stipe only twice the length of the calyx, coiled nearly into one turn or at 

 length into a flat spiral ; the valves thinner and less indurated than in the preced- 

 ing^ more voiny, and less turgid. — Proc. Am. Acad. vi. 225 ; Watson, 1. c. 



Var. falciformis, Gray. Stipe filiform, half to three fourths of an inch long, 

 nearly the length of the tliinner-walled and less turgid falcate or merely hooked pod. 



Sierra Co. (Lcmmon) and adjacent mountains of Nevada ( Watson) ; the original coUected by 

 L]iall on the Upper Columbia, in fruit only. Flowers narrower and rather longer than m the fore- 

 going, which some forms approach. 



++ ^+ Calyx equal-sided and centrally attached to the pedicel : 2^od straight, linear- 

 oblong, compiressed; the valves thin and parchment-liJce : stems erect or somewhat 

 spreading. 



30 A. filipes, Torr. Minutely puberulent or glabrous : stems slender, branch- 

 ing, 2 feet high: stipules small and subulate : leaflets 9 to 17, rather scattered, 

 linear (one third to two thirds of an inch long) : racemes virgate, long-peduncled, 

 loosely-flowered : pedicels soon spreading or pendulous : calyx-teeth not half the 

 leng-th of the campanulate tube : corolla yellowish- white (half an inch long) _: pod 

 an inch or less in length and 2 or 3 lines broad, abruptly contracted at base into a 

 filiform stipe of about half an inch in length. — Gray, Proc. Am. Acad. vi. 226. 



N. W. Nevada ( JFatson, Lcmmon), extending towards and probably within the State, and in 

 the dry interior country to AVashington Territory. 



31. A. Antiselli, Gray. Cinereous-pubescent, a foot or so in height : leaflets 

 21 to 29, liuear-oblong, crowded, 2 to 4 lines long, hoary beneath but glabrous 



