ORDER LXVIII. — COMrOSIT.^. 403 



Genus LXXVL— CACA'LTA. L. 



(An ancient name.) 



Involucre cylindric, oblong, scaly at the base ; florets all 

 perfect, tubular. Receptacle naked. Pajjpus pilose. 



1. C. suaveo'lens. {Senecio suaveolens.) Stem erect, glabrous. Leaves 

 ovate-hastate, serrate, mucronate, petioles winged, colored. Flowers 

 in erect corymbs; involucre many-leaved, sligiitly pubescent at the 

 Bummit, with irregular subulate scales at the base; disk florets numer- 

 ous. /SVcc^ striate ; pappus pilose. — Yellow. 11. Aug. — Oct. Middle 

 Car. and Geo. 3 — 5 feet. 



2. C. ATiurLiciFo'LiA, (L.) Stem erect, branching, glabrous, slightly 

 glaucous. Leaven cordate, somewhat renifoim, glabrou-*, toothed, up- 

 per ones lanceolate-ovate, glaucous beneath. Flowers in terminal co- 

 rymbs ; involucre with 5 equal linear leaves, 5-flowered. Seed oblong, 

 ovate, glabrous; pa[>pus scabrous; rece|itaele with an irregular mass 

 in the center, 8-cleft at the summit. — AVhite, tinged with purple. 2^. 

 July — Sept. In rich soils in Car. and Geo. 3 — 8 foet. 



3. C. ova'ta, (Ell.) Stem erect, branching at the summit. Leaves 

 ovate, obtusely toothed, 7-nerved, glaucous beneath. Floicers in fasti- 

 giate ctjrynibs ; involucre composed of 5 equal linear leaves. Seed gla- 

 brous ; pappus pilose; receptacle naked, with an irregular projeetion 

 in ti.e center. — White, y. Sept. — Oct. West Georgia and Alabama. 

 3—4 feet. 



4. C. lanceola'ta, (Nutt.) Stem erect, branching toward the summit. 

 Leaves long, narrow, lanceolate, remotely dentate, 7-nerved, glaucous 

 beneath. Florvers in terminal corymbs; involucre with 5 linear-lance- 

 olate leaves, with membranaceous margins. Seed glabrous, striate ; 

 pappus pilose; receptacle small, with a projection in the center. — 

 White. U. Aug.— Sept. Middle Geo. 4—6 feet. 



5. C. diversifo'lia, (T. & G.) Stem angled. Leanes not glaucous, 

 somewhat 3 nerved, the lower ones ovate, somewhat cordate, obtusely 

 toothed, upper leaves 3 — 5-lobed, somewhat hastate. — Flor. Swamps. 



Genus LXXVIL— SEXE'CIO. L. 

 (From senex, an old man, in allusion to the hoary appearance of some specie*.) 



Involucre cylindrical, scaly at the base; scales withered at 

 the point. Florets of the disk perfect, of the ray pistillate. 

 Receptacle naked. Paj)piLs pilose, abundant. 



1. S. loba'tus, (Pers.) Stem erect, glabrous, angled, fistulous, succu- 

 lent. Leaves pinnatifid, sessile, with spatulate lobes, dentate, glabrous. 

 Flowers in corymbose panicles ; involucre with linear leaves; ray flo- 

 rets about 12, 3-toothed at the summit. Seed stviato ; pappus bii^tly. 

 — Yellow. 0. Jan. — May. Common. 1—3 feet. Butter-vced. 



2. S. au'reus, (L.) Stem erect, glabrous, slender, sometimes jnibes- 

 cent near the base. Radical leaves cordate, or nearly orbicular, ser- 

 rate, glabrous, supported on long petioles ; cauline leaves, the upper 

 ones amplexicaul, pinnatifid, small, lower ones nearlv orbicular. //<>«£>- 



