430 COMPOSITE. 



under Layia. A foot high or less, diffusely branched from the base, 

 rather densely hispidulous throughout, and with a few small dark stip- 

 itate glands ou the involucre: leaves all narrow and entire: heads small 

 rays white, but short and inconspicuous: pappus bright white, of 10 

 aristiform bristles, with copious short villous hairs, the innermost of 

 which are interlaced. — Near the summit of Mt. Diablo, and near Te- 

 hachapi, Kern Co., at considerable elevation. April — June, 



9. B. derails, Greene, 1. c; Nutt. Trans. Am. Phil. Soc. vii. 393 

 (1841) under Madaroglossa. Habit of the last but much larger, more or 

 less stipate-glandular throughout: lower leaves pinnately toothed; upper 

 entire: rays yellow, i^ in. long: pappus white, its copious villous hairs 

 much shorter than the aristiform bristles. — More widely diffused than 

 the last, and at lower elevations. May, June. 



* * Pappus of naked aristiform bristles. 



10. B. platyglossus, Greene, 1. c; F. & M. Ind. Sem. Petr. ii. 31 

 (1835), under Callichroa. Sparingly branching, 1 ft. high more or less, 

 hirsute and stipitate-glandular: lower leaves pinnatifid into linear lobes: 

 rays ^^ in. long, yellow, with white tips: disk-achenes silky-hirsute; 

 pappus of 15 — 20 upwardly scabrous stout awn-like bristles. — Common 

 in open grounds. April — June. 



11. B. peutacha^tns, Greene, 1. c; Gray, Pac. R. Rep. iv. 108, t. 16 

 (1857) under Layia. Somewhat hirsute and viscid-pubescent, scarcely 

 hispid, 1 — 2 ft. high, corymbosely branching, lowest leaves laciuiately 

 pinnatifid, the lobes narrowly linear: rays wholly orange-yellow: disk- 

 achenes glabrous or minutely pubescent; pappus of about 5 rigid smooth 

 bristles, or sometimes wholly wanting. — Foothills of the Sierra Nevada, 

 in middle section of the State. 



* * * Pappus, when present of flattened awns or palese rather than bristles. 



12. B. Fremonti, Greene, 1. c; T. & G., Journ. Bost. Soc. v. 140 

 (1844), under Calliachyris. Strictly erect; branching above the base 1 

 ft. high, minutely pubescent, not glandular: leaves pinnately cut into 

 short lobes: rays % — M i^- ^ong, yellow at base, white above it: pappus- 

 palese ovate to oblong-lanceolate, tapering into a subulate awn, entire at 

 the margins and with a few long-villous hairs. — Plains of the lower Sac- 

 ramento, etc. April, May. 



13. B. Douglasii, Greene, 1. c. 247; H. & A. Bot. Beech. 356 (1841), 

 under Calliglossa. Habit and flowers of the last, but plant nearly or 



