10 LEGUMINOS.E. 



17. A. crotalariae, Gray, Proc. Am. Acad. vi. 216 (1864) ; Beutb. PL 

 Hartw. 307 ( 1849) under PJiaca. Stout, decumbent, glabrous, except the 

 canescent growing parts : leaflets very many, oblong-linear to obovate. 

 sometimes retuse, j^ — 1 in. long : stipules broadly triangular, distinct : 

 calyx-teeth subulate, half as long as the short-eampanulate tube : fl. 

 white : pod thin, ovoid, 1 — IJ^ in. long, sessile in the calyx. — Plains and 

 hills from San Francisco to Santa Barbara. A var. vir^atus, Gray, is 

 described as having narrower stipules, a looser raceme, longer and 

 narrower calyx-teeth, etc. It may be a hybrid between this and the next. 



18. A. Meuziesii, Gray, 1. c. (1864). Phaca NuUaUii, T. & G. Fl. i. 

 343 (1838) ; P. deasifoUa, Smith in Rees' Oycl. (1819). Stout, erect, 2-4 

 ft. high, glabrous or nearly so : stipules broad, not pointed, continued 

 around the stem, sometimes nearly meeting or even cohering opposite 

 the base of the leaf : raceme long and dense : fl. greenish : pod thin, 

 large as in the last. —Plentiful in sandy soils along the seaboard, at 

 Alameda, West Berkeley, San Francisco, etc. Dr. Torrey, in a Pacific 

 Railroad Report, restored to this its first specific name given under 

 Phaca, but inadmis>sably ; there being a much older Astragalus densi- 

 folHis of Lamarck. 



19. A. iiiacrodon, Gray, 1. e. (1864) ; H. & A. Bot. Beech. 333 (1840), 

 under Phaca. Erect, tall, glabrous in age, the nascent parts canescent ; 

 leaflets 23-27, oblong-lanceolate, obtuse, mucronulate : stipules small, 

 lanceolate-acuminate : peduncles rather shorter than the leaves ; racemes 

 long : calyx-teeth slender-subulate, equalling the campanulate tube, and 

 almost as long as the corolla : ovary silky ; pod unknown. — This obscure 

 plant was collected by Douglas only, some sixty years ago, somewhere 

 between Monterey and Sonoma, probably near the former place. It 

 should be carefully sought, though it may have become extinct. The long 

 and slender calyx-teeth, according to the original description, so dis- 

 tinguished it from its allies, as to make its recognition easy in case it 

 should be rediscovered. 



20. A. Dong-lasii, Gray, 1. c. (1864) ; T. & G. Fl. i. 346 (1838), imder 

 Phaca. Ascending, 1 ft. high, cinereous-puberulent when young, other- 

 wise nearly glabrous : leaflets very many, linear or linear-oblong, % — % 

 in. long : spike short, dense, 10 — 20-flowered : calyx-teeth subulate, shorter 

 than the campanulate tube : pod thin, obliquely ovoid, 1}4 — 2 in. long. — In 

 gravelly places along streams, from San Francisco to San Luis Obispo. 



21. A. Horiiii) Gray, Proc. Am, Acad. vii. 398(1868), Slender, ascend- 

 ing, 2 ft. high or more, glabrous or pubasoent : leaflets 21 — 29, narrowly 

 oblong : peduncles much longer than the leaves, bearing a dense spike 

 of yellowish flowers : calyx-teeth broadly subulate, scarcely as long as 

 the campanulate tube : pods densely spicate, ovate from a broad base. 



