338 COMPOSITE. Palafoxia. 



the involucre obovate-spatulate, very obtuse, thin, maiuly whitish, some outer or accessory 

 bracts narrower and shorter, partly herbaceous : corollas white or flesh-color : palese of the 

 pappus little shorter than the akenes, linear-lanceolate, gradually attenuate, more or less 

 pointed by the excurrent tip of the strong costa. Gen. ii. 139; Ell. Sk. ii. 314, not DC. 

 Paleolaria fastigiata, Less. Syu. 156. Palafoxia fastlgiata, DC. Prodr. v. 125. P. inteyri- 

 folia, Torr. & Gray, Fl. ii. 269. Pine barrens, Georgia and Florida; first coll. by Dr. 

 Baldwin . 



151. PAL AFtJXI A, Lag. (Jose Palafox, noted Spanish general.) Her- 

 baceous or suffruticose plants (of Mexico and the U. S. borders) ; with branching 

 stems, rather large scattered or loosely cymosely disposed pedunculate heads oi' 

 flesh-colored or whitish flowers ; the leaves linear to oblong, alternate, entire, the 

 lower short-petioled. Nov. Gen. & Spec. 26 (Elench. Hort. Madr. 1815); Gray, 

 Proc. Am. Acad. xix. 31. Palafoxia in part, Less., DC., Benth. & Hook. 



P. LATIFOHA, DC. Prodr. v. 125, of Southern Mexico, is unknown to us, and by its opposite 

 cordate leaves and obovate iuvolucral bracts is probably of some other genus. 



* Anomalous species, connecting with Polypteris. 



P. Feayi, GRAY. A foot or two high, suffruticose at base, very leafy to near the summit, 

 minutely scabrous- leaves short (little over inch long), oblong or ovate-oblong and rounded 

 at both ends, or uppermost lanceolate and acutish, thickish, 3-uerved at base : heads corym- 

 bosely cymose, over half-inch high : involucre campanulate, about half the length of the 

 flowers ; its bracts spatulate-liuear, at apex truncate-obtuse and somewhat purplish-sphace- 

 late : corollas with oblong lobes fully half the length of the cylindraceous throat: pappus 

 shorter than the corolla-tube and several times shorter than the glabrate akeue, of 8 oblong 

 rigid pointless lacerately scarious-edged paleae (comparable with those of some outermost 

 flowers of the following). Proc. Am. Acad. xii. 59, xix. 31. Coast of S. Florida, in 

 saudv soil, Feat/, Chapman, Curtiss, no. 1507. 



* * Genuine species, with narrow and paniculately scattered heads, narrowly linear involucral 

 bracts, these in age usually concave and applied to the subtended akenes. 



P. linearis, LAG. 1. c. Flowering as an annual, but becoming perennial and frutescent, 

 strigose-ciuereous and partly hirsute or hispid, slender flowering branches sometimes 

 glauduliferous : leaves linear, or lower ones lanceolate, more or less canesceut: heads about 

 inch long, 15-30-flowered (or by depauperation 10-12-flowered) corolla-lobes oblong-linear, 

 half the length of the throat: pappus of 4 (sometimes 5) linear hyaline palere with strong 

 and rigid excurreut costa, and little shorter than the slender akeues, or sometimes 2 to 4 

 additional and shorter blunt ones, or in the outer flowers all reduced, short, and of firmer 

 texture, with imperfect costa, or abortive. DC. Prodr. v. 124; Hook. Bot. Mag. t. 2132. 

 Ageratum lineare, Cav. Ic. iii. 3, t. 205. Paleolaria carnea, Cass. Bull. Philom. 1816, & Diet. 

 P. leucophijlla, Gray, Proc. Am. Acad. viii. 291, & Bot. Calif, i. 388, a shrubby form with 

 reduced pappus, from seeds of which were raised plants having nearly the ordinary pappus 

 of the species, which, although flowering as an herb with seemingly annual root along the 

 Mexican border, was originally described as shrubby. On the Colorado near Fort Yuma, 

 &c., S. California, and Arizona. (Mex.) 



152. RIG-IOPAPPUS, Gray. (From p^ytos, stiffened, and 7ra7r7ro9, pap- 

 pus.) --Proc. Am. Acad. vi. 548, Bot. Calif, i. 387 ; Benth. & Hook. Gen. ii. 

 406. Single but variable species. 



R. leptodadus, GRAY, 1. c. Slender annual, a span to a foot high, minutely hirsute-pubes- 

 cent to almost glabrous, pauiculately or subcorymbosely branched : branches commonly 

 filiform, elongated, and leafless below, smooth, simple or proliferous, bearing solitary heads : 

 leaves all alternate, very narrowly linear, sessile, erect, entire, those of the branches near the 

 heads small and subulate : involucre 3 lines high : flowers yellow but often changing to pur- 

 ple or whitish : paleae rather than awns of the pappus from half to two-thirds the length of 

 the akene, 3 to 5, occasionally only 2 or 1, or rarely wanting. Dry ground, interior region 

 of Washington Terr, to the middle of California and Nevada ; first coll. by Lyall. 



