CORYMBIFERE^. 195 



neutral, the disk perfect. Receptacle conic, chaffy. Pappus 

 a 4-toothed margin. 



1. R. Purpurea. S/«?'n somewhat branched, smooth or a little roughened. 

 leaves i.vaie-ianceolate, scabrous, tapering towards the base, tliose towards 

 the upper part of the stem narrower, all coarsely serrate. Flowers terminal. 

 Involucre uianv leaved, imliricate, ciliate, in several series, squarrose. Ray flo- 

 rets long, narrow, 2-clet"t,reHexed. Sfcti angled, enlarged at the summit. Chaff 

 of the receptacle wiih rigid pomts; longer than the florets 



Purple. %■ August— October. Upper Carolina & Georgia. 4-5 feet. 



2. R. PiNNATA. Stem hispid, furrowed. Leaves pinnate, lower segments 

 sometines 2-parted. Rowers large, showy ; involucre with the leaves nearly 

 equal ; ray florets long, refloxed, those of the disk purple. 



Yellow. % July— Oct. Upper districts of Car. and Ga. 4-5 ft. 



3. R. DiGiTATA. Stem erect, g'abrous, branching, lower leaves pinnate, 

 with pinnaiifld 9ei2;meiits; the upper ones simple, pinnate, the highest 3-cleft. 

 Involucre shorter than the disk, somewhat pubescent, with ovate-lanceolate 

 leaves. Pappus a 4-toothed margin. Chaff tomentose at the summit. 



Yellow. % August— Oct. Mountains. 5-8 ft. 



4. R. Laciniata. S!em erect, glabrous, branching. Leaves scabrous, the 

 lower ones pinnate, with 3-lobed segments, coarsely toothed, sometimes la- 

 ciniate, upper leaves nearly sessile, ovate or 3-cleft, sometimes dentate. Flout)- 

 ers in terminal panicles. Involucre shorter than the disk, with small ovate- 

 lanceolate leaves. Ray floret'^ about 6, dilated at the summit, 3-toothed. Pap- 

 pus a crenate margin. Chaff touientose. 



Yellow. 1\. August— Sept. In moist places. Middle Ga. 4-6 ft. 



5. R. Triloba. Stem hairy, hispid, paniculately branched, branches leafy, 

 divaricate. Leaves lanceolaie, acuminate at each end, serrate, the lower ones 

 3-lobed, hairy, upper ones lanceolate, serrate, sessile. Flowers numerous 

 at the extremities of the branches. Involucre with reflected leaves, Ray 

 florets lanceolate, reflected, about 8. Pappus a 4-toothed margin. 



Yellow. % August— Sept. Mountains. 4-5 ft. 



6. R. ToMEXTOSA. S'/Pffi erect pubescent, slighdy furrowed, much branch* 

 ed, branches erect, virgate Leaves alternate, lanceolate, acute, scabrous, to" 

 mentose, the lower ones somewhat trifoliate, upper leaves entire. Flowers 

 at the extremities of the branches. Involucre tomentose, with nearly subu- 

 late reflexed leaves. ii«'/ fl ires about 8. Pappus n\mos\ wanting'. 



Yellow. % Sept.— Oct. Middle & western Ga. 3-4 fi. 



7. R. Mollis. Stem erect branching, covered with a hispid pubescence. 

 Leaves ahernate, ovate-lanceolate, sessile, dentate, siinhtly cordate, pubes- 

 cent. Flowers at the extremities of the branches. Involucre hairy, with re- 

 flexed leaves. Ray flitrets 12-20. Pujrpus nearly wanting. 



Yellow. % August— Oct. Western Ga. 2-3 ft. 



8. L.iiviGATA. S^e/n glabrous. Leaves ovate-lanceolate, somewhat coria- 

 ceous, shining. Radicle leaves ovate-spatulate, dentate. Flowers on long, 

 naked peduncles. Involucre with long lanceolate leaves. Ray florets rather 

 short. 



Pale yellow. % July — Aug. Pine barrens. 2-3 ft. 



9. R. Discolor. '&tem pubescent, branching. Leaves alternate sessile* 

 strigose, pubescent, lanceolate, entire, or finely denticulate. Flowers termi- 

 nal. Incnlucre somewhat pubescent. Rai^ florets 12-14, hairy on the outer 

 surface. Pappus a minute margin. Chaff purple, fringed at the summit. 



Yellow. % August— Sept. Middle & wesern Ga. 2-3 ft. 



10. R. SpATtiuLATA. Stem pubescent .slender. Leaves entire, obovate* 

 spatulate. Flowers solitary, terminal. Involucre imbricate, expanding- 

 Ray flore's 3-t(<i)ihed. 



Yellow. % July— Aug. Mountains. 10-18 in. 



11. R. Fl'lgida. f^tem hispid, with long virgate 1-flowcred branches- 

 Leaves numerous, oblouii-lanceolate, alternate, sessile, hispid, tapering at the 



