148 CALIFORNIA ACADEMY OF SCIENCES. 



son, 1. c. ; H. argentea, Kellogg, Proc. Cal. Acad. iii. 38, 

 fig. 8. 



S. PROCUMBENS. — HoscLcMa, Greene, Bull. Cal. Acad. i. 82. 



S. Yeatchii. — Hosaclda, Greene, 1. c. 83. 



S. Ornithopus. — Hosackia, Greene, 1. c. 185. 



S. DISTICHUM. — Hosackia, Greene, 1. c. 186. 



S. DECUMBENs. — HosacJda, Benth, 1. c; Hook. Fl. Bor- 

 Am. i. 34; Torr. <fe Gray, 1. c. 324; Watson, 1. c. 138, excl. 

 var. (?) Nevadensis: Drepanolobus, Nutt. 1. c. 



S. Nevadense. Annual, diffusely procumbent, tlie slender 

 branches 1 — 3 feet long: sparingly villous or somewhat 

 tomentose: leaflets 3 — 5, small, cuneate-obovate: umbel on 

 a short peduncle and with a unif oliolate nearly sessile bract : 

 calj^x a line long, the slender teeth a half -line : pod 2| lines, 

 strongly incurved, yielding a single curved seed. — Hosackia 

 decumhens, var. (?) Nevadensis, Watson, 1. c. 



Common from Donner Lake and Yosemite to the eastern 

 borders of Nevada. 



S. TOMENTOSUM, Yogel, 1. c. — Hosackia, Hook. & Arn. 1. c. 

 137; Torr. & Gray, 1. c; Watson, 1. c. 139: BrejMnolobas 

 lanatus, Nutt. 1. c. 



S. Heermanni. — Hosackia, Dur. & Hilg. Pac. E. Kep. v. 

 6. t. 4; Watson, 1. c. 



S. NIVEUM. Suffrutescent, a foot high, white, with a villous- 

 tomentose pubescence: leaflets 5, obovate or oval, acute: 

 flowers capitate, the head nearly sessile, bractless; corolla 

 4 lines long, little exceeding the calyx of which the equal, 

 filiform teeth are as long as the turbinate tube : pod 1-seeded, 

 very short, wholly included in the calyx. 



Island of Santa Cruz on exposed rocky slopes, but nearly 

 extinct. The few specimens collected do not at all indicate 

 the shrubby character of the species; for they are young 

 seedling plants of perhaps the second year, just beginning 



