148 LEGUMINOS^E. Astragalus. 



thin-bladdery, one or two inches long, glabrous; its stipe slightly exceeding the 

 short-campanulate calyx. ■ — Phaca Hookeriana, Torr. & Gray. 



Mountains in the interior of Oregon (Douglas), and W. Nevada (Anderson, Watson), extend- 

 ing into Nevada and Sierra counties, Bolandcr, Lcmmon. 



11. A. Whitneyi, Gray. Minutely appressed-pubeseent : steins erect: leaflets 

 11 to 19, linear-oblong, 3 Hues long : flowers short-pedicelled : corolla " red- violet," 

 in the specimen seemingly only purplish : immature pods smaller than in the fore- 

 going, oval, and narrowed at base into a more slender stipe which becomes nearly 

 twice the length of the oblong-campanulate calyx. — Proc. Am. Acad. vi. 526. 



In the Sierra Nevada at Sonora Pass, at 10,000 feet, Brewer. 



++ ++ Stems very short and tufted on the rootstocks : pod ovate and acute, longer than 

 the few-flowered common peduncle, short-stlpitate within the calyx. 



A. megacarpus, Gray in Proc. Am. Acad. vi. 215 (Phaca, Nutt.), is here mentioned to com- 

 plete the series, and because its var. Pariiyi, Gray, with narrower pods and leaflets, found in 

 Southwestern Utah, may approach the eastern borders of California. 



■t-i- -r-r 



Stems afoot or more high and mostly erect. 

 = Stipe of the more or less acute pod equalling or little exceeding the calyx. 



12. A. oophorus, Watson. Glabrous throughout : stems lax or decumbent, a 

 foot or two long : leaflets 9 to 13, oblong, obtuse, half to three quarters of an inch 

 long : peduncles equalling the leaf, racemosely several-flowered : calyx-teeth seta- 

 ceous from a dilated base, as long as the broadly campanulate tube : corolla yel- 

 lowish-white, sometimes violet-tipped, half an inch long : bladdery pod ovate, not 

 oblique, acute, an inch and a half long, pendulous on a stipe which barely exceeds 

 the calyx-tube. — Bot. King Exp. 73. 



Shoshone Mountains at Reese River Pass, Nevada, Watson. The only station yet known. 



13. A. oxyphysus, Gray. Canescent with very soft silky pubescence: stem 

 erect, 2 or 3 feet high: leaflets 9 to 21, oblong, an inch or less in length: peduncles 

 much exceeding the leaves : raceme elongated, rather densely flowered : calyx-teeth 

 subulate, barely half the length of the oblong tube : corolla greenish-white, two 

 thirds of an inch long : bladdery pod clavate-obovate, oblique, acuminate at both 

 ends, and especially tapering into the recurved stipe (which exceeds the calyx), 

 almost glabrous, about an inch and a half long. — Proc. Am. Acad. vi. 218. 



Dry hills in the Monte Diablo range, Arroyo del Puerto, Brewer. A striking species. 



14. A. curtipes, Gray, 1. c. Cinereous with a minute appressed pubescence, 

 or green with age : stem a fodt or two high : stipules mostly united opposite the 

 petiole : leaflets 13 to 33, oblong or almost linear, retuse, half to three fourths of an 

 inch long : peduncles in fruit longer than the leaf : raceme short and rather dense : 

 calyx-teeth setaceous-subulate, little shorter than the broadly campanulate tube : 

 corolla not seen : bladdery pod semi-ovate or oval, acutish, an inch and a half long, 

 glabrous, pendulous on a recurved rigid stipe which hardly exceeds the calyx-tube. 



Dry hills at San Luis Obispo, Brewer. Near Ojai, Prof. G. L. Goodale. In fruit only. 



= = Stipe of the slightly pointed or obtuse glabrous pod filiform, much exceeding the 

 calyx: stem erect : raceme or spike densely floiuered and long peduncled. 



15. A. leucophyllus, Torr. & Gray. Canescent with fine and soft silky pubes- 

 cence when young, when older rather greenish : stem rather stout, 2 or 3 feet high : 

 leaflets in many pairs, broadly linear, often an inch long : flowers fully half an inch 

 long : calyx-teeth subulate, about half the length of the oblong tube : corolla yel- 

 lowish-white : thin-bladdery pod oval, unequal-sided, an inch and a half long, on a 

 filiform pubescent stipe of almost equal length! — Phaca leucophylla, Hook. & Arn. 



Lower part of the Sacramento to Monterey ? Not well named ; when full-grown hardly hoary. 



