CARDUACEAE 1425 
long. wd pinelands and pond-margins, Coastal Plain, Fla. to Tex. and 
Ga, —Spr. —fal 
0. R. glabra DC. Stem E dm. = apps leaf-blades elongate- 
m ate nd linear- piri 9-30 cm. long, pega -dentate or undulate, 
veiny: bracts of the involu mu linear: ligules of the ray 3-5 em. long: disk 
cylindrie or pcm cylindrie, 2—4 em. long.—Low grounds, Coastal Plain, Fla. 
to Tex. and Ga.—Spr.-fall. | 
R. sudo Boynton & Beadle. A 4-10 dm. tall, pubescent: blades 
the r leaves De coarsely serrate: bracts of the a elliptic to 
finear elliptie, 10-15 mm. long: ligules of the ray 1.5-2 em. long.—Moist soil, 
ppalachian provinces und Interior Low Plateaus, Ga. to Ky um. 
R. pmanii Boynton & Beadle. Stem 4-10 dm. tall, glabrous or 
Sb Ere of the lower leaves PERCHE UN dentate or coarsely 
erenate-dentate: braets of the involuere linear or luem -elliptic, 6-12 mm. 
long: oo of the ray 1.5-2.5 em. long.—Mt. slopes, Blue Ridge, Ga. and 
Ala.— 
13. R. palustris Eggert. Stem 5-7 dm. tall, glabrous or glabrate, at least 
Hina blades of the lower leaves ovate-lanceolate, remotely serrate or den d 
r nearly a bracts of the involucre linear to ie -oblong, mostly obtus 
ligules of the ray 1-2 m. long—Low grounds, wet banks, and cedar- a 
Interior and Ozark Plateaus, Tenn. to Mo. and Ky.—Sum.-fall. 
4. R. acuminata Boynton & Beadle. Stem 5-8 dm. tall, acia bres of 
the lower leaves laneeolate, remotely serrate with low te eth or : bracts 
of the involucre lanceolate, acute: ba aes of the ray 1-2.5 cm. pese Woods, 
Interior Low Plateau, Tenn.—Sum 
15. R. fulgida Ait. Stem 3-7 dm. tall, hirsute or somewhat hispid: blades 
of the lower leaves lanceolate, elliptic- -lanceolate, or euneiform, remotely toothed 
and swamps, various Dem rarely Coastal Plain, Ala. to Miss., Tenn., W 
Va., Pa., and N. C.— 
16. R. foliosa Boyuta & Beadle. Stem 3-7 dm. tall, pd or some- 
what hispid: leaf- puo p E n elliptie or eifor 
sparingly serrate or entire da ets of t voluere linear to élliptie- o 
ligules of the ray 1- 15 cm. long: disk a js poe em. wide.—W oods 
and thickets, mostly in marly plaees, Coastal Plain id Piedmont, Fla. to 
N. Sum.-fall. 
17. E. spathulata Miehx. Stem 3-7 dm. tall minutely p bass es 
of the vid Md icd E Or oblanceolate, anaes or min and 
d hed: braets of the voluere linear, mostly a ute: S e the 
y 1—2 œ ong; disk pos ut l em. aide: —Wo ods, and along streams, various 
ee eee Coastal Plain, Ga. to Ala., Tenn., and N. C.—Sum.-fall. 
18. R. Sullivantii Boynton & ine peius 5-10 dm. tall, hispid or glabrate: 
An of the lower leaves oval, vate-lane ceolate, Ll coarse- 
de braets of the inv dne d -elliptie, o obtuse: ligules of the ray 2-4 
m. long: disk 12-18 mm. wide. LM grounds, various Diu s N of Coastal 
Plain, Ala. to Mich.—Sum.—fal 
19. R. speciosa Wenderoth. Stem 5-10 dm. tall, hirsute or somewhat hispid: 
blades of the lower leaves donas -anceolate, often faleate, irregularly coarse- 
90 
