150 LEGUMINOS^E. Astragalus. 



Hills and plains, from around San Francisco Bay to Santa Barbara Co. ; the variety about San 

 Francisco Bay, Bridges, Kellogg or Holder. If Phaca Crotalarice, i. e. the specimen of Coulter, 

 was really collected "near Monterey," it is most probably a pubescent and fewer-flowered form 

 of this, with broad and less numerous leaflets. But several of Coulter's plants said to come from 

 Monterey must have been gathered on the way thither in the southeastern part of the State, or in 

 Arizona. 



20. A. Menziesii, Gray, 1. c. Villous with whitish hairs, or soon green and 

 almost glabrous : stems erect or decumbent, 1 to 4 feet high : stipules broader and 

 less pointed, all but the uppermost united on the side of the stem away from the 

 leaf: leaflets and dense spicate raceme as well as flowers nearly as in the preceding: 

 pod similar, but larger (an inch and a half or more long) and 3nore bladdery, the 

 walls thin-membranaceous. — Phaca densifolia, Smith ; Hook. Ic. PL t. 283, excl. 

 syn. Kutt. P. Nuttallii, Torr. & Gray, Fl. 



Meadows and sandy fields, San Francisco Bay to Santa Barbara near the coast. 



= = = Stipules scarious or thin-membranaceous, mostly subulate : peduncles shorter 

 than the leaves and rather few-floiuered : corolla hardly twice the length of the calyx, 

 (about 4 lines long), yellowish-white or cream-color. 



21. A. macrodon, Gray, 1. c. Villous-canescent, at least when young : stems 

 a foot or two high : leaflets in numerous pairs and mostly crowded, oblong-linear 

 (from a third to an inch long) : flowers crowded, soon reflexed : calyx-teeth slender- 

 subulate, as long as the campanulate tube, little shorter than the corolla : mature 

 pod not seen. — Phaca macrodon, Hook. & Arn. 



Near San Franscisco or more probably Monterey, Douglas. More specimens are needed. 



22. A. Douglasii, Gray, 1. c. Cinereous-puberulent, almost glabrous in age : 

 stems ascending, a foot or so in height : leaflets in rather numerous pairs, linear or 

 linear-oblong (a third to three quarters of an inch long) : spike (half an inch to an 

 inch long) 10-20-flowered : calyx-teeth subulate, from half to three fourths the 

 length of the campanulate tube : pod thin-bladdery, gibbous-ovoid, 1A- to 2 inches 

 long. — Phaca Douglasii, Torr. & Gray, Fl. 346. 



Gravelly beds of streams near the coast, San Francisco to San Luis Obispo. 



+-S- ++ Smaller pods (about half an inch long), fexu-seveixd-seeded: stems low or spread- 

 ing : flower only a quarter of an inch long. 



23. A. Sornii, Gray. Glabrous or minutely pubescent : stems slender, ascend- 

 ing : leaflets about 21, narrowly oblong (4 to 7 lines long) : peduncle surpassing 

 the leaves : flowers numerous in a dense head or short spike, which is equally dense 

 in fruit : calyx-teeth subulate, about the length of the campanulate tube : corolla 

 yellowish-white, straightish : pods ovate from a broad base and gradually acumi- 

 nate, straight, villous-pubescent, 10 - 15-seeded. — Proc. Am. Acad. vii. 398. 



Eastern side of the Sierra Nevada, in Owen's Valley {Dr. HoriC), and at Bakersfield, to S. 

 Utah. Said to be one of the sheep-poisons. 



24. A. Pulsiferae, Gray. "Whitish-villous : stems numerous in a tuft and pro- 

 cumbent, slender, branching: stipules slender-subulate: leaflets 5 to 11, obovate- 

 cuneate, mostly refuse, 3 or 4 lines long : peduncles not longer than the leaf, rather 

 loosely 3 - 5-flowered : flowers pedicellecl : calyx-teeth linear-filiform, twice the 

 length of the campanulate tube, about the length of the keel of the incurved white 

 and purple-tinged corolla : the narrow wings and especially the standard (notched 

 at the apex) much longer : pod ovate-inflated and incurved, villous-pubescent, 3—8- 

 seeded. — Proc. Am. Acad. x. 69. 



Gravelly hills and banks, Sierra and Plumas counties, Mrs. Pulsifer Ames, Lcmmon. The pods, 

 although small (barely half an inch long), as in the inflated-fruited section ; but otherwise, in 

 aspect, mode of growth and size, wholly different. 



A. pubentissimus, Gray, Proc. Am. Acad. vi. 209, is nearly related to the preceding, and is 

 probably perennial ; but it has short stems, much broader stipules, leaflets hardly narrowed 



