290 COMPOSITE. Coreofsis. 



colored: fl. summer and autumn. — Gen. no. 981; Torr. & Gray, Fl. ii. 338; 

 Benth. & Hook. Gen. ii. 384, partly. 



C. AsPERA, Pursh, Fl. ii. 570, and C- flexicaulis, Raf. in Med. Rep., are not identified, 

 and probably not of the genus. 



§ 1. Calliopsis. Style-tips truncate or obtusely short-conical : akenes not 

 villous-ciliate : outer involucre small, short and calyculiform, except in the last 

 species : rays obovate or cuneate, inclined to be palmately 3-4-toothed or lobed. 

 — § Calliopsis, Coreoloma, & Cosmella, Torr. & Gray, P'l. 



* Perennials, with rose-red rays and yellow disk -flowers : akenes oblong, nearly straight, smooth. 

 — § Cosmella, Torr. & Graj'. 



C. rosea, Nutt. Nearly glabrous, a foot or less high from slender creeping rootstocks, 

 branched, leafy, bearing numerous small and short-peduncled heads : leaves opposite, linear 

 or nearly so and entire, or the lower 2-3-toothed or 3-parted : involucre 2 or 3 lines high : 

 rays rose-color, coarsely 3-toothed or lobed : akenes with merel}^ callous margins and an 

 obscure entire border at summit. — Gen. ii. 179 ; Bart. Fl. Am. Sept. t. 12 ; Torr. & Gray, Fl. 

 ii. 348; Torr. Fl. N. Y. i. t. 57. Calliopsis rosea, Spreng. Syst. iii. 611. — Grassy swamps, 

 coast of Mass. to Delaware and Georgia. 



C. nudata, Nutt. 1. c. Very smooth and glabrous : stem 2 to 4 feet high from a thick or 

 tuberous rootstock, rush-like, below bearing some alternate terete and filiform-subulate 

 leaves (the larger a foot long), above some scattered smaller ones, gradually reduced to 

 bracts, the naked summit forking and bearing a few slender pedunculate heads : involucre 

 4 or 5 lines high : rays showy, obscurely lobed, bright purplish rose-color, inch long : akenes 

 witli fimbriately or pectinately dissected wiug.s, and two sliort upwardly hirsute subulate 

 awns. — Torr. & Gray, 1. c; Hook. f. Bot. Mag. t. 6419. — Pine-barren swamps, Florida. 



* * Perennials, with yellow rays, dark purple di>k-flowers, and mostly entire leaves: akenes 

 oblong or elliptical, straight, witli fimbriate border or dissected wings and a ]iair of awns. — 

 § Coreoloma, Torr. & Gra3', excl. first species. § Rhabdocaulis & Euhlvpharis, Nutt. Trans. Am. 

 Phil. Soc. vii. 359, excl. sp. 



■i— Stems not rarely alternate-leaved throughout, strict; the summit or flowering branches (bear- 

 ing solitary or scattered heads) naked and rush-like, their leaves being reduced to small siibidate 

 bracts: cauline thickish and rather fleshy, especially when near brackish water, all tapering or 

 contracted at base. 



C. gladiata, Walt. Glabrous, or young leaves not rarely pilose-pubescent: stem terete, 

 2 to 4 feet high, all the upper part naked : principal leaves alternate, from broadly obovate- 

 oval to lanceolate-linear, obtuse, scarious-edged ; lower 3 to 6 inches long, with long margined 

 petiole dilated and partly clasping at insertion : involucre 4 or 5 lines higli : rays comnujuly inch 

 long : mature akenes bordered by a strong pectinate fringe, and surmounted by 2 short rigid 

 awns or teeth which may not surpass the fringe. — Car. 215; Nutt. Gen. I.e.; Ell. Sk. ii. 

 244; Torr. & Gray, Fl. ii. 347. C. dichotoma, Miclix. Fl. ii. 137, mainly and by the char. — 

 Moist pine barrens, S. Carolina to Florida, in the low country, commoner near the coast. 



C. angustifolia, Ait. Wholly glabrous : stem slender, mostly quadrangular, 1 to 3 feet 

 high : leaves narrower and smaller than in the foregoing, sometimes all opposite ; lower 

 spatulate-lanceolate and the upper spatulate-linear : heads and rays smaller, the latter about 

 half-inch long : akenes with narrow lacerate fimbriate wings and slender setiform awns. — 

 Ait. Kew. iii. 253 ; Torr. & Gray, 1. c. C. dichotoma in part, Michx. 1. c. C. linifolia, Nutt. 

 Jour. Acad. Philad. vii. 75. C. [Rhabdocaulis) linifolia & anfjnsfifolia, Nutt. Trans. Am. 

 Phil. Soc. 1. c. — Moist pine barrens or swamps, N. Carolina to Florida and Texas. 

 -t— H— Stems leafy to near the summit, and the leaves opposite. 



C. integrifolia, Pom. Nearly glabrous, 2 or 3 feet high : leaves ovate or oblong, entire, 

 only inch and a half long, rounded at base ; upper almost sessile ; lower abruptly petioled : 

 rays three-fourths inch long : akenes not seen : ovary minutely serrulate-hispidulous on the 

 margin, minutely awned. — Suppl. ii. 353; DC. Prodr. v. 570; Torr. & Gray, Fl. ii. 347, 

 mainly. — Carolina, Bosc (originals in herb. Poir., now of Cosson, & herb. DC), S. Carolina, 

 Rarenel, and Georgia, Decatur Co., Chajiman. Too little known. Ligules said by Poiret to 

 be linear-oblong and entire, which does not accord with our specimens, nor with the group. 



