es often filiform, decid, some of the up- 

 per changed to soft spines; hds corm- 

 bose or glomerate at the summit of the 

 branches; inv 5-9-fld, its bracts 5-6; 

 pappus fine, concealed by the long wool 

 of ak. 



Gray. Am ac pr 12:60 (1876). 



Type locality: "W. Nev," "S. E. bor- 

 ders of Cal," "Potrero," SD Co. 



Coville, CXH 4:141. 



Abrams, Fl LA 438. 



la,; SBer; SD Co; Baja! 



Genus PEREZIA Lagasca. 



Per herbs with mostly reticulated 

 often setulose-ciliate or spinulos-j Ivs, 

 and solitary cymose or paniculate mid- 

 dle-sized, discoid hds of rose-p, w, or 

 bl fls: involucral bracts imbricated in 

 few-several series, dry, chartaceous or 

 coriaceous: receptacle flat, naked, 

 rarely .pilose or fimbrillate: cor 5-lobed, 

 som-v-hat bilabiate: ak narrowed at 

 apex: pappus of copious capillary sca- 

 brous rigid or soft bristles. 

 PEREZIA MICROCEPHALA A Gray. 



Tall, branching above, 1.5-2 m hi, 

 leafy: Ivs oblong, the upper ovate, cor- 

 date-clasping. S-12 cm long, thin coria- 

 ceous, minutely glandular-scabrous, 

 veiny. closely spinulose-denticulate; 

 hds corymbose at the summits of the 

 paniculate branches, 12-15 mm hi; in- 

 volucral bracts very acute, coriaceous; 

 in a hd, cor 8-10 mm long, 

 rose-p. 



.ms, Fl LA 443. Frequent on the 

 dry interior plains and foothills. Jl-Ag. 



Bloch, Erythea 1:191. Sacapellote. 

 Notes its medicinal repute. Monterev 

 10 ?n 



SEar to Santo Tomas, Baja! 



Genus CEXTAIREA I,i 11 iineus. 



Ann or per herbs, with alt entire 

 dentate pr pinnatifid Ivs. and large or 

 :ed hds of variously colored 

 fls: inv ovoid or globose, bracts im- 

 bricated in num series, tipped with 

 stout spine: receptacle flat, bristly: 

 cor-tube slender, the limb 5-toothed or 

 ak oblong or obovoid, com- 

 sed or somewhat 4-angled, obli- 

 or laterally attached to the re- 

 ceptacle: pappus of num slender sca- 

 brous V.ristles or scales or rarelv 0. 

 CEXTAUREA MELITEXSIS Linn. 

 L. Sp PI 2:917 (1753). 



locality: the island of Melita, 



nean sea. 

 lie, CXH 4:142. 

 Parish. Zoe 1:58. 

 Davidson. Erythea 1:60. LA Co. 



Fl LA 442. A common weed 

 in waysHes and fields. Jl-N. Native 

 of Southern Eu. 



ranching, 5-S dm hi, clner- 

 eou?-r,M'"'escent or when young some- 

 wool \y: basal Ivs lyratepinnati- 

 of the st lanceolate, mostlv 

 . narrowly decurrent; principal 

 s with slender spines of about 

 their own length. spines pectinate- 

 spinulose at base, innermost with spin- 

 escent tips: fls y; pappus of very un- 



198 



equal rather rigid bristles or squamel- 



late. 



CARDLUS CALIFORX1CUS Greene 



Rather slender, 6-12 dm hi, canes- 

 cently woolly; Ivs sinuate-pinnatifid, 

 moderately prickly; hds solitary on 

 long ped, about 4 cm hi; inv somewhat 

 woolly; lower bracts coriaceous-acer- 

 ose, spreading and incurved, others 

 straight, all subulate-spinescent at tip; 

 fls lilac-purple or rose; lobes shorter 

 than throat. 



Abrams, Fl LA 441. Monica, Gabriel 

 etc. 



Greene, Phila ac pr 1892, 359 (1893) 



Type locality: "hillsides, near 

 Knight's Ferry, on the Stanislaus, Cal." 



Cirsium Californicum Gray, Pac Dy 



CARDUUS EDULIS Greene. 



Stout, 1-2 m hi, pubescent, Ify up to 

 the short panicle; Ivs oblong or nar- 

 rower, sinuate-pinnatifid, weakly 

 prickly; hds 3-4 cm hi, depressed-glo- 

 bose, few in a terminal cluster, Ify- 

 bracted at base; inv arachnoid when 

 young: fls deep p, their seg shorter 

 than the throat. 



Abrams, Fl LA 441. Pasadena (Mc- 

 Clatchie). 

 CARDUUS OCCIDEXTALIS Nuttall. 



Stout, 6-9 dm hi; Ivs deeply pinnati- 

 fid. srlabrate above, canescently tomen- 

 tose beneath; hds solitary on stout ped; 

 ir.v subglobose; bracts straight, subu- 

 late-lanceolate, with short spines, 

 densely covered with cobwebby hairs; 

 fls deep r-p; lobes longer than the 

 throat. 



Abrams, Fl LA 441. 



Nuttall, Am phil soc tr, n sr, 7:418 

 (1841). 



Type locality: "round SBer," Cal. 



Coville, CNH 4:142. Near Caliente. 

 CYXARA SCOI/OIUS L. 



Stout and low, with very ample 

 hoary-tomentose bipinnatifid Ivs: inv 

 bracts ovate obtuse or emarginate. 



Abrams. Fl LA 442. An occasional 

 escape from gardens. Je-Jl. 



Genus GLATX Linnaeus. 



Somewhat succulent per with opp 

 Ivs. distinguished from all other genera 

 of the order by the absence of the cor: 

 ex p'ish or w, campanulate. 5-lobed, as- 

 suming the appearance of a cor, the 

 sta alt with the lobes: cap 5-valved at 

 apex: sds few. immersed in the tissue 

 of the rjlacenta. 

 GLAUX MARIT1MA Linn. 



Sea Milkwort: in saline soil round 

 the northern hemisphere. 

 SAMOL.US FLORIBl XDTJS HBK. 



Erect or ascending, branched at least 

 at the base, 15-45 cm hi; Ivs membran- 

 ous. 25-75 mm long, obovate, obtuse, 

 at the apex, narrowed at the base into 

 petioles, the basal often rosulate; fls 

 sm, less than 2 mm broad, usually num, 

 in loose elongated panicled racemes; 

 . pedicels filiform, spreading, bracteolate 

 near the middle; ex-lobes acute, short- 

 er than the cor: cap 2-3 mm in diam, 



