CALIFORNIA ACADEMY OF SCIENCES. 157 



Mohave Desert, Parish Brothers, 1882, No. 1273; Mrs. 

 M. K. Layne-Curran, iu the same locality, 1881. 



Resembling the Mollissimi. In Mrs. Carran's very ma- 

 ture specimens the long pods are curved into a ring. In the 

 younger ones, collected by Mr. Parish, they are only moder- 

 ately incurved. 



A. pachypus. Near A. arredus: stems rigid and flexuous, 

 2 — 4 feet high, the upper portion, together with the younger 

 foliage, minutely white-pubescent: leaflets in 8 — 10 pairs, 

 narrowly liuear, truncate or retuse, an inch long: peduncles 

 stout: racemes few-fiowered: corolla ochroleucous or white, 

 "8 lines long: calyx-teeth linear-subulate, fully equaling the 

 campanulate, slightly gibbous tube: pod when young thick 

 and succulent, in maturity hard-coriaceous, glabrous, much 

 wrinkled,an inch and a half long, mucronate, somewhat com- 

 pressed, slightly incurved, both sutures prominent, com- 

 pletely 2-celled, erect or ascending on a very stout stipe 

 which a little exceeds the calyx. 



Mountains of Kern County, California, June, 1884, Mrs. 

 Curran. 



A. Hosackle. Phaca, near J!. Sonorce: prostrate, sparing- 

 ly pubescent with soft, spreading hairs: leaflets rather 

 crowded in about 7 pairs, elliptical, acute, glabrous above: 

 peduncles exceeding the leaves: racemes short: calyx-teeth 

 setaceous, surpassing the campanulate tube : pod obscurely 

 puberulent, ovate, acute, J inch long, the ventral suture 

 prominent. 



Northern Arizona, 1883. Dr. Busby. 



The crowded leaflets give the plant something of the as- 

 pect of a Hosackia. The resemblance to its near relative 

 in the genus is not striking, that being a silvery-silky spe- 

 cies, and this not in the least canescent. 



A. Califoentcus. Stems numerous, erect and simple, 

 rather stout, 1| feet high: pubescence loose, cinereous: 



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