5^ DAVENPORT ACADEMY OF NATURAL SCIENCES. 



base, anthers linear-oblong; styles slender, four times as long as the 

 ovary, becoming exsert; embryo with ovate cotyledons and short 

 radicle. 



Habitat: Rocky hills south of Monterey to San Luis Obispo; whole 

 plant, including the clustered involucres, reddish-purple. A well-marked 

 species, approaching the following : 



* * Erect, spreading, frequently low branched at or near the base; involucres 

 scattered or loosely cymose-clustered; divisions unequal, not scarious margined; 

 cauline bracts usually narrow and pungent, rarely (C. Xanti) foliaceous. 



Hh Perianth segments deeply cleft, lanceolate, with fimbriate margins. 



17. C. FiMBRiATA, Nutt., Watsou, 1. c. Low branched, 3-6 inches 

 high, appressed pubescent, purplish; radical leaves oblong, spathulate, 

 expanded and somewhat bilobed at the summit, smooth, or more or 

 less hairy pubescent ; cauline and involucral bracts setaceous, recurved, 

 rigidly awned; involucres scattered in the lower axils, more or less 

 clustered above, tube cylindric, pubescent, usually strongly costate, 

 divisions unequal, divergent and recurved, with straight or uncinate 

 awns; flowers nearly sessile, deeply cleft; perianth segments nearly 

 equal, exsert, with an oval terminal lobe, and irregularly fimbriate on 

 the margins; stamens 9, at the base, anthers oval; styles three times 

 as long as the ovary, exsert; embryo with cotyledons as long as the 

 radicle. 



Habitat : Very common on dry table-land at San Diego, April, May. 

 Figured in Pacific R. R. Rep., Vol. V., t. 8. 



18. C. I.ACINIATA, Torr. Branching near the base, 3-6 inches high, 

 sparsely pubescent, light reddish; radical leaves spathulate, with slen- 

 der petioles ; cauline bracts setaceous ; involucres rather copiously 

 scattered on the upper and terminal branches ; tube cylindric, pubes- 

 cent externally ; divisions slightly unequal, divergent, with short re- 

 curved awns ; flowers nearly sessile ; perianth segments conspicuously 

 exsert, with a prolonged slender terminal lobe and narrowly laciniate 

 margins ; stamens 9, anthers broad oval ; styles exserted, nearly as 

 long as the developed akene ; embryo light green, with linear cotyle- 

 dons and short radicle. 



Habitat: Mountain slopes toward the desert, east of San Diego; 

 lately rediscovered by G. R. Vasey, Parish Brothers, and C. R. Orcutt. 

 Near the preceding, but readily distinguished ; of a lighter red color. 



-i- +- Perianth segments entire, inner shorter and narrower. 



