326 COMPOSITE. Baeria. 



* * * Akenes more cuneate and broad at the summit, usually but not always pappose, more or 

 less 4-augular, not glandular, mostly canesceut-hispidulous : receptacle conical or cyliudraceous : 

 heads middle-sized or smaller. 



t Some hirsute or strigulose pubescence, but no woolliness : style-tips capitate, without any obvi- 

 ous apiculation : plants slender, a span to a foot high according to situation and season : pappus- 

 1 to 5. 



B. gracilis, GRAY. Bracts and rays 10 to 12, when depauperate 5 or 6 : ligules 2 or 3 lines 

 Ions?: akeiies almost equalled by the pappus; this in type specimens of 3 or 4 awns from 

 small lanceolate paleaj. Proc. Am. Acad ix. 196, & xix. 21. Burriclia gracilis, DC. Prodr. 

 v. 664. B. hirsuta, Nutt. Trans. Am. Phil. Soc. u. ser. vii. 381, a state destitute of pappus. 

 Common in W. California, especially southward, and W. Arizona: variable. Extreme 

 variations are 



Var. aristosa, GRAY, 1. c., with awns very gradually and slightly widened downward, 

 or in some flowers wanting. Burrielia gracilis, Hook. Bot. Mag. t. 3758. 



Var. tenerrima, with pappus-awns of the preceding, but usually fewer: depauperate 

 form : bracts and rays only 5 or 6. Probably Burrielia tenerrima, DC. Prodr. v. 664. 



Var. paleacea, GRAY, 1. c., with awns more or less abruptly dilated at base into a 

 conspicuous oval or ovate palea, occasionally wanting, rarely one or two of the paleae awn- 

 less. Burrielia tony (folia & B. parviflora, Nutt. 1. c. 



B. CUrta, GRAY. Bracts and rays 8 or 10: pappus of 4 or 5 ovate or obloug pointless palese 

 (or rarely of a single one), in length not exceeding the breadth of the akene, or in some 

 plants obsolete or wanting : leaves all filiform-linear : heads 2 or 3 lines high and wide. 

 Proc. Am. Acad. xix. 21. Southeastern California, near San Bernardino, W. G. Wright, 

 Lemmon. 



-l_- -i Glabrous except some fine deciduous woolliness: leaves and involucral bracts more or less 

 fleshy-thickened, heads about 4 lines high, many-flowered: style-tips ovate or capitate, and 

 with a conical or subulate apiculation or appendage : pappus of firm ovate or deltoid paleae 

 abruptly attenuate-awned, about equalling the akene. 



B. Cleveland!, GRAY. Leaves linear, a line wide, obtuse, entire : involucral bracts 8 to 12, 

 plane : pappus-paleae only 2, sleuder-awued. Proc. Am. Acad. xix. 22. San Diego, Cleve- 

 land. Too little known. 



B. carnosa, GREENE. Leaves filiform, entire : involucral bracts about 7, with a strong cari- 

 nate midrib: pappus of 4 or 5 subulate-awned paleos. Bull. Torr. Club, x. 86. Bay of 

 San Francisco, in salt marsh at Vallejo, Greene. 



B. platycarpha, GRAY. Leaves narrowly linear to filiform, some laciniate-pinnatifid : in- 

 volucral bracts 6 or 7, manifestly 3-uerved at base, middle nerve at length carinate-thickened : 

 pappus-pale* 5 to 7, slender-awued. Proc. Am. Acad. ix. 196, xix. 22. Burrielia platycar- 

 pha, Gray, Bot. Mex. Bound. 97. Lower Sacramento and Byron Springs, Stillman, Greene. 



2. DicuJiTA. Pappus of two forms both in ray and disk, i. e. of truncate or 

 muticous paleoe alternating with awned ones or naked awns, or wanting in some 

 species : receptacle, &c., of 1 : involucral bracts more obviously carinate-coucave 

 in middle, the concavity partly embracing subtended akene, disposed to be decidu- 

 ous with it at maturity of the fruit: heads not large (3 or 4 lines high) : leaves 

 from entire to laciniate-pinnatifid in the same species. Gray, Proc. Am. Acad. 

 ix. 196, & xix. 22. Dichceta, Nutt. Trans. Am. Phil. Soc. vii. 383; Torr. & 

 Gray, 1. c. 



B. maritima, GRAY. Low and diffuse, glabrate: leaves oblong-linear, inch long, entire, or 

 lowest sparingly laciniate-toothed : head rather narrow : involucral bracts and short orbicu- 

 lar ravs 6 or 8 : pappus of 3 to 5 slender-subulate awns and at least as many small and 

 narrow laciniate squamellae or paleffi. Proc. Am. Acad. ix. 196. Burrielia maritima, Gray, 

 Proc. Am. Acad. vii. 358. Farallones Islands, off San Fraucisco, Grabcr. 



