ORDER LXVIII. — COMPO-SITJE. 387 



wliAt foliaceous ; ray florets 12 — 14, 2-cloft ; pappus, a slight margin. 

 CAo/T glabrous. — Yellow. Aug. — Oct. Mountains. 2 — 3 feet. 



8. R. trilo'ba, (L.) Stem hairy, hispid, paniculately branched, branch- 

 es leafy, divaricate. Lparea lanceolate, acuminate at each end, serrate, 

 the lower ones 3 lobi^d, hairj, upper ones lanceolate^ serrate, sessile. 

 Flowers numerous at the extremities of the branches; involucre with 

 reflexed leaves ; ray florets hinceolate, rt-flexed, about 8 ; paj)pus a 

 4-toothed margin. — Yellow. If. Aug. — Sept. Dry soils. 4 — 5 feet. 



4. R. mol'lis, (Ell.) Stem erect, branching, covered with a hispid 

 pubescence. Leaven alternate, ovate-lanceolate, se.-sile, dentate, slight- 

 ly cordate, pubescent. Flowers at the extremities of the branches ; in- 

 volucre hairy, with reflexed leaves; ray florets 12 — 20; pappus nearly 

 wanting. — Yellow, %. Aug. — Oct. Western Geo. 2 — 3 feet. 



6. R. iielioi'si'dis, (T. & G.) Stem erect, simple, somewhat pubes- 

 cent, few branches at the summit. Leaves ovate or oval, slightly ser- 

 rate, 5-uerved, glabrous, or slightly pubescent; involucre minutely pu- 

 bescent, scales somewhat spatulate. Florets of the disk brownish-pui-ple. 

 Achenia of the rays 3-angled, of the disk 4-anirled. — Pale yellow. In 

 Wet places. Ala. and Geo. Aug. — Sept. 1 — 2 feet. 



6. R. digita'ta, (L.) Stem erect, glabrous, branching, lower leaves 

 pinnate, with pinnatifid segments ; the upper ones simple, pinnate, tiie 

 highest 3-cleft. Involucre shorter than tlie disk, somewhat pubescent, 

 with ovate-lanceolate k-aves. Pappus a 4-toothed margin. Chaff to- 

 mentose at the summit. — Yellow. If. August — Oct. Mountains. 

 6—8 feet. 



7. R. lacinia'ta, (L.) Ste7n erect, glabrous, branching. Lcares sca- 

 brous, the lower ones pinnate, with 3-lobed segments, coarsely toothed, 

 sometimes laciniate, upper leaves nearly sessile, ovate or 3-cleft, some- 

 times dentate. Flowers in terminal pnnicles; involucre shorter than 

 the disk, with small ovate-lanceolate leaves; ray florets abo :t 6, dila- 

 ted at the summit, 3-toothed ; pappus a crenate margin ; chaff tomen- 

 tose. — Yellow. 2f . Aug. — Sept. In moist places. Middle Georgia. 

 4—6 feet. 



8. R. heterophyl'la, (T. & G.) Stem erect, cinerous-pubescent. 

 Leaves 3 — 5-parted, the terminal divisions euneiforn), and mo.stly 3 cleft, 

 upper leaves simple, ovate, serrate. Achenia prismatic. — Mid. Fh.r. 



9. R. nit'ida, (Nutt ) Ste7n erect, sim|de, glabrous. Leaves oval ob- 

 long and lanceolate, coriaceous, often tootlied ; lower leaves petiohite. 

 upper clasping. Heads large, showy. — Geo. and Flor. 3 — 5 feet. 



10. R. l^viga'ta, (Pnrsh.) Stem glabrous. Leaves ovate-lanceolate, 

 somewhat coriaceous, shining. Radical leaves ovatespatnlate, dentate. 

 Flowers on long, naked peduncles; involucre with long lanceolate 

 leaves; ray florets rather short. — Pale yellow. 2f. July — Aug. 

 Pine-barrens. 2 — 3 feet. 



11. R. disco'lor. (Pursh.) >S/cm pubescent, branching. X^av^s alter- 

 nate, sessile, strigose, pubescent, lanceolate, entire, or finely denticulate. 

 F/'owers tt'xm'uKil ; involucre somewhat pubesi;ent ; ray florets 12 — 14, 

 liairy on the outer surface ; p:ippus a minute margin ; eluifF inirple, 

 fri. ged at the summit. — Yellow. If. Aug. — Sept. Midille and west 

 eru Georgia. 2 — 3 feet. 



12. R. SPathula'ta, (Mich.) /S<rm pubescent, slender. Leavrs cutirc, 

 obovate-spatulate. Floicers solitaiy, terminal ; involucre imbricate, 



