COMPOSITiE. 427 



asceudiu"? branches; hirsute or hispid, scarcely viscid and nearly or 

 quite scentless: lower leaves doubly, the upper simply pinnatifid, all the 

 lobes pungent-tipped; chaff of receptacle rigid and pungent: ray-achenes 

 nearly black, rather glossy, about a line long not strongly compressed, 

 the ventral angle carmate, and with a short apiculation, the plane sides 

 and rounded back faintly tuberculate-rugose. — Plains of the lower Sau 

 Joaquin, and towards Monterey. July — Oct. 



2. C. maritima, Greene, 1. c. Stout as the last, but only 1—2 ft. 

 high, less rigid, darker green, more villous or hirsute, and with widely 

 spreading and divaricate branches at summit of the erect stem; leaves 

 nearly all pinnatifid and softer, but setose-pungent; chaff of receptacle 

 sharply mucrouate, scarcely pungent: ray-achenes dull greenish-brown, 

 scarcely '^4 line long, not compressed, though with angled face more 

 prominently and acutely apiculate, the summit and back quite prom- 

 inently and sharply rugulose, the whole sxirface obscurely roughened.— 

 Borders of salt marshes about San Francisco Bay. July — Nov. 



+~ +- Disk-achenes with 3 or more slender linear palex. 



3. C. rudis, Greene, 1. c. 197. With the aspect of C. pungens, but 

 only 1 — 2 ft. high, commonly branched from near the base, and the 

 branches ascending, sparsely hispid-hairy and scabrous-pubescent, 

 slightly resinous and distinctly honey-scented: earliest cauline leaves 

 pinnatifid, all the others linear-subulate, entire hispid-ciliate, the mar- 

 gins in age revolute: acheues of ray black, about a line long, strongly 

 compressed, semi-obcordate in outline, the surface nearly smooth, the 

 apiculation infra-terminal and rather prominent, though short. — Sacra- 

 mento Valley, near Vacaville, Jepson. Long supposed to be mere C 

 pungens, to which it bears a very close general likeness. But the disk- 

 achenes have the pappus of the next species, and those of the ray are 

 altogether peculiar. May — Aug. 



4. C. Parryi, Greene, 1. c, and Bull. Torr. Club. ix. 16 (1882), under 

 Hemizonia. Widely branching, 1 — 2 ft. high, sparsely hirsute, minutely 

 resinous-glandular, aromatic: lowest leaves pinnatifid, the cauline linear, 

 entire, sharply pungent, spreading, the uppermost pilose-ciliate toward 

 the base: heads scattered rather than glomerate: ray-achenes dvill black, 

 % lines long, somewhat compressed, smooth on the sides, but with a few 

 coarse tuberculations on the back: those of the disk with 3 or more 

 paleae exceeding the corollas: chaff of receptacle not pungent. — Plenti- 

 ful about the warm springs at Calistoga; herbage with the fragrance of 

 Wintergreen. June-- Aug. 



