Gaillardia. composite. 367 



and callous at the base, longer than the disk ; corolla of the disk with atten- 

 uate-subulate teeth; chaff of the pappus ovate or lanceolate-oblong, with 

 long awns ; finibrillai of the receptacle aristiform-subulate, not dilated at the 

 base, slender, longer than the achenia. — Fouoeroux, in mem. acad. I. c. t. 1 

 Sf2; Cass, in diet. set. nat. 18. p. 19; DC. prodr. 5. p. 652 ; Gay, I. c. 

 G. bicolor. Lam. diet. 2. p. 590, %- ill. t. 708 ,• Ait. Kew. {ed. 2) 5. p. 129 ; 

 Ihrr. ! in ann. lye. I. c. (excl. syn.) G. Drumraondii, DC. ! I. e. (excl. 

 syn.), Sf 7. p. 292 (excl. syn. G. picta. Sweet.), fide Gay. G. bicolor rar. 

 Drunimondii, integerrima, HooTn. hot. mag. t. 3551 ? Calonnea pulcherri- 

 ma, ''■ Buchoz, ic, t. 136." Virgiha helenioides, '■'■ DHcr. diss, (ic.) ; Smith, 

 exot. hot. 1. p.71,t. 37." 



Louisiana I Arkansas! and Texas! Introduced into the French gardens 

 from Louisiana in the year 1786, and lost about 1791 ; again recently intro- 

 duced by Drummond. — Heads an inch or more in diameter. Rays 10-12, 

 attenuate at the base, deeply 3-cleft, violet-purple, the teeth yellow. Fim- 

 brillas 4-5 to each areola, rigid, persistent. Achenia involucrate with a vil- 

 lous ferruginous tuft. — In some specimens, (G. Drunimondii, DC!) the 

 chaffy portion of the pappus is broadly ovate, in others ovate-oblong or ob- 

 long-lanceolate ; but we observe no other difference. The fimbrillge appear 

 to be as long as in G. aristata. — According to Mr. Spach [Ann. sei. nat. {n. 

 ser.) 15. p. 34), this is a perennial species, and to it he unites the following. 



5. G. picta (Don) : suffruticose, much branched ; leaves sessile, linear- 

 lanceolate, scarcely if at all dilated or clasping at the base, entire, or the 

 lower ones with a few coarse teeth, and the upper denticulate; scales of the 

 involucre equalling or exceeding the disk, hairy, callous and somewhat hir- 

 sute at the base ; corolla of the disk with long subulate teeth ; chaff of the 

 pappus oblong-lanceolate ; fimbrillas of the receptacle 4-6 to each areola) 

 subulate, rigid, dilated and triquetrous at the base, rather longer than the 

 achenia. Gay, I. c. — Don. in Brit. fi. gard. ser. 2. t. 267. (excl. habitat 

 Louisiana.) G. bicolor, var. Drunimondii, Hook. hot. mag. t. 3368. 



Rio Brazos, Texas, Drummond ! — Leaves rather thick, often with a brown- 

 ish margin, scabrous-ciliolate. Heads 12-15 lines in diameter. Rays about 

 12, broadly cuneiform, reddish-orange ; the teeth yellow. Fimbrillae stout, 

 carinate at the base. — Resembles the preceding. In the indigenous, as well 

 as in our cultivated specimens, the lower leaves are frequently sinuate-pin- 

 natifid. Among the tbrnier, there is a state of the species with what appears 

 like an annual root, and the stems only 3 inches high bear a single head. 



* * Pappus of the ray-jlowers awnkss. 



6. G. amhlyodon (Gay) : annual ; stem hirsute-pubescent, simple or 

 branching; leaves sessile, denticulate, scabrous-pubescent; the lowest some- 

 what spatulate ; the others oblong-linear, somewhat auriculate at the base 

 and clasping ; involucre hirsute, rather longer than the disk, the scales cal- 

 lous and appressed for nearly half their length; corolla of the disk with short 

 triangular rather obtuse teeth ; chaff of the pap]3us lanceolate ; hmbrillae of 

 the receptacle aristiform, unequal, not dilated at the base, mostly longer than 

 the achenia. — Gay! in ann. sei. nat. I. c. p. 63. 



Texas, Drummond ! — Stem 1 0-18 inches high. Leaves numerous, rather 

 thick, serrate towards the summit. Scales of the involucre imbricate in 3 \o 

 4 series, more erect and callous at the base than in any other species, the in- 

 termediate ones longer than the exterior. Rays about 12, elongated cunei- 

 form, deeply 3-toothed, brownish-purple throughout in the dried state. Pap- 

 pus of the ray composed of 5-7 short ovate or obovate membranous scales, 

 three or four of which are more or less mucronate, the othei-s lacerate or 

 denticulate at the summit. 



