446 Okdek 70.— COMPOSITE. 



1 R. nftida Nutt. Glabrous, shining, subsimple, lvs. thick, lanceolate, acute, the 

 lower sub.serruiate, petiolate, upper sessile or clasping; hds. few or solitary, with 

 long, drooping rays ; pappus coroniform, lacerate at summit. — Ga., Fla., to La. A 

 handsome herb. 3 to 5f high, in swampy thickets. Lvs. with prominent veins 

 and veinlets. lids, on long naked peduncles. Rays 9 to 12, nearly 2' long. 

 Disk dark purple, oblong-ovate or spieate in fruit. Ju., JL 



2 R. laciniata L. Glabrous; lower lvs. pinnate, segments 3-Iobed, upper ones 

 ovale ; pappus crenate. — In the edges of swamps and ditches, Can. and U. S. A 

 tall, showy plant, resembling Helianthus, from which, however, it is readily dis- 

 tinguished by its conical, at length ovate disk. St. round, branching, G to 8f 

 high. Lvs. alternate, ample, rough, upper ones generally ovate, the rest variously 

 divided, toothed or cut, petiolate. Fls. large, terminal Rays 1-J to 2' long, 

 oblanceolate, bright yellow, spreading or drooping. Aug. (R. laevigata Ph.) 



3 R. subtomentdsa Ph. St. branching, tomentous-pubescent ; lvs. petiolate, 

 hispid-scabrous above, softly subtomoutous beneath, serrate, the lower deeply 3- 

 lobed or 3-parted, upper undivided, ovate, acuminate; hds. corymbous ; scales 

 numerous, spreading; rays 10 to 15, spreading; disk at length globous; pales 

 bearded, shorter than the corollas. — Prairies, &c, Western and S. "W. States. St. 3 

 to 5f high, angular, marked with brown lines. Lvs. 3 to 5' long, on petioles 1 

 to 2±" long. Rays orange yellow, about 1' long. Jl., Aug. 



4 R. triloba L. Hirsute; branches panicled spreading; lower cauline lvs. 

 mostly 3-lobed, coarsely serrate, acuminate; upper ovate lanceolate somewhat 

 clasping, serrate or entire; radical ones ovate or oval, obtuse, crenate-dentatc or 

 incisely lobed, petiolate; hds. rather small, disk dark purple; at length ovoid; 

 ray; 8, broad-oval, rather longer than tho linear, reflexed scales. — Fields, Mid. 

 anil W. States. A handsome species, 2 to 4f high, very branching. Lvs. 2 to 

 4' long, 3-veincd. Rays deep yellow, G to 10" long, § as wide. Chaff cuspi- 

 date-awned at the summit. Aug., Sept. 



5 R. mollis Ell. Soft-woolly or tomentous all over; lvs. oblong, sessile or clasp- 

 ing; scales linear lanceolate, reflexed; rays 15 to 20, elongated; disk dark pur- 

 ple except the canescent pales. W. Ga. An interesting species, confined as yeJ 

 to a narrow limit. Plant whitened with down, 2 to 3f high. Lvs. small. Hds. 



large; rays au inch long. Pappus almost none. Aug. — Oct. 



6 R. Keliopsidia Torr. & Gr. Slightly downy; lvs. ovate or oval. 5-veined, 

 mostly obtuse, petiolate; scales obtuse, squarrous; rays 10 to 12; disk conical, 

 dark purple except the downy canescent pales. — Barrens, W. Ga. and Ala. Plant 



1 to 2f high. Lvs. 2 to 3' long, the lower on long petioles. Pappus scarcely any. 

 Aug., Sept. 



7 R. hirta L. Very hirsuto or hispid ; st. simple or somewhat branched ; pod, 

 naked ; lvs. ovale-spatulate, 3-veined, petiolate, mostly entire, the upper ones sessile, 

 ovate-lar.ceolato ; iuvol. scales numerous, narrow, imbricated in 3-rows; rays 

 spreading, oval ; pales bearded. — A showy plant in dry soils, Can. W. to Fla., 

 rarely in N. Kng. Sts. subsimplo or branching from the base, each branch leaf- 

 less towards tho summit, and bearing a largo head with 12 to 15 bright yellow 

 rays. Theso are an inch long, and surround a broadly conical disk of dark brown 

 chaff and flowers, f JL, Sept. 



D R. fulgicla Ait. St. hirsute with rigid hairs ; branches slender, naked abovo: 

 lvs. strigous-pubescent, remotely dentate, radical petiolate, ovate, 5-veined, caulino 

 lance-oblong, tapering to tho sessile, subclasping base ; scales oblong, spreading, as 

 long a3 tho spreading rays ; pales glabrous, linear-oblong, obtuse. — Mountains, 

 Penn. to Ohio and Ga. St. 1 to 3 f high. Rays 12 to 1 4, scarcely longer than 

 the leafy involucre, deep orango-yellow. Jl. — Oct. f (R. chrysomela Mx. R. 

 Bpatulata Ph.) 



9R cpeciosa Wender. St. hispidly hirsute; branches slender, elongated, naked 

 abovo ; lvs, scabrous-pubescent, strongly dentate acuminate, radical ovate, 5-veined, 

 on long petioles, cauline ovato and lanceolate, 3-veined, upper sessile; scales 

 lance-linear, much shorter than the spreading rays ; pales linear-oblong, acute. — 

 Borders of woods, 111. (Jenney), Ohio to Penn. A largo and very showy species, 



2 to 4f high. Lvs. rather thin, radical, 4 to 5' by 3 to 4', tho teeth mucronulate : 



