LEGUMINOS^. 11 



acuminate. % in. lonj?, somewhat villous. — From Tulare Co. southward. 

 Easily recognized by its cone-like spike of somewhat imbricated pods. 



22. A. Pulsiferae, Gray, 1. c. x. 69 (1874). Slender, tufted, procumbent, 

 white-villous : leaflets 5 — 11. obovate-cuneiform, usually retuse. 3 — 4 lines 

 long : peduncles equalling the leaves, few-flowered : calyx-teeth linear- 

 filiform, twice the length of the campanulate tube : corolla white with a 

 purple tinge : pod }'2 in. long, ovate, incurved, villous. — Gravelly places 

 in Plumas and Sierra counties, Mrs. Ames, Mr. Lemmon. 



-I— -1— H— Pods not 1)Iaddery, mostly of hard lexUire. 



23. A. Purshii, Dougl. in Hook. Fl. i. 152 (1830). Stems a few inches 

 long, forming matted tufts ; herbage densely silky-villous : leaflets 9 — 15, 

 oblong : peduncles shorter than the leaves : fl. few, capitate, 1 in. long 

 or less, bright purple ; calyx-teeth silbulate, shorter than the tube : pod 

 ovate, incurved, 1 in. long, densely white-woolly, cartilaginous, obcom- 

 pressed, the two sutures nearly meeting within, thus forming two incom- 

 plete compartments. — On the eastern slopes of the Sierra if at all within 

 our limits ; but common in Nevada and northern California. 



24. A. inalacus, Gray. Proc. Am. Acad. vii. 336 (1868). Low, stoutish, 

 densely white-hirsute : leaflets 11 — 17, obovate, retuse : peduncles exceed- 

 ing the leaves, spicately few- or many-flowered : fl. J'i, in. long, deep 

 purple ; calyx cylindrical, dark-hairy, the slender teeth much shorter 

 than the tube : pods pendulous, 1 in. long, 3 — 4 lines wide. Innately 

 incurved, densely hairy, 2-celled Ijy intrusion of the dorsal suture, the 

 cross section narrow-obcordate. — Eastern slope of the Sierra, southward. 



25. A. Andersonii, Gray, 1. c. vi. 524 (1865). Slender, canescent with a 

 dense somewhat silky pubescence : leaflets 13 — 25, oblong, oval or obovate, 

 mucronate : peduncles longer than the leaves : fl. many, yellowish-white, 

 crowded in an oblong or cylindrical spike : calyx-teeth subulate-setaceous, 

 nearly as long as the cylindrical whitish-villous tube : pods pendulous, 

 falcate, % — % in. long, 2 lines wide, abruptly pointed, downy, 2-celled as 

 in the last. — Habitat of the preceding. 



26. A. Congdoni, Wats. Proc. Am. Acad. xx. 360 (1885). Stems 1--2 

 ft. long, decumbent ; herbage soft-pubescent : leaflets 17 — 21, small, 

 orbicular, obovate or oblong, obtuse or retuse : racemes loose, long- 

 pediincled : teeth of the campanulate calyx short, triangular : corolla 

 pale yellow : pod chartaceous, linear, curved, 1 in. long, jjuberulent. 

 2-celled as in the above. — In Mariposa Co. along the Merced River, 

 Congdon. 



27. A. Bolanderi, Gray, Proc. Am. Acad. vii. 337 (1868). Low, sub- 

 erect, slightly ijubescent : stipules scarious, united opposite the i)etiole : 

 leaflets very many, oblong-linear, % — % in. long : peduncles stoutish. 



