COMPOSITJ, (COMPOSITE FAMILY.) 231 
above, pubescent beneath ; the lower ones often glightly cordate, on short winged 
petioles ; scales of the involucre linear-lanceolate, hirsute, about as long as the 
disk ; rays 12-15.— Southern States, Torr. § Gray, and westward. Sept. — 
Stem 59-8? high. Lowest leaves 6/-12/ long. Heads large. Rays 1}! long. 
14. H. strumosus, L. Stem simple or branched, rough above, smooth 
below; leaves varying from lanceolate to ovate-lanceolate, acuminate, slightly 
serrate, short-petioled, very rough above, paler and smooth, or roughish, or 
sometimes softly pubescent beneath ; scales of the involucre lanceolate, acumi- 
nate, as long as the disk, spreading; rays 8-10. (H. mollis, Ell.) — Dry soil, 
common. Sept. — Stem 2? — 49 high, sometimes glaucous. Leaves 3/- 4' long. 
15. H. decapetalus, L. Stem branched, smooth below, rough above ; 
leaves thin, opposite, ovate, acuminate, coarsely serrate, rough on the upper sur- 
face, smooth or roughish beneath, abruptly short-petioled ; scales of the involucre 
lanceolate-linear, spreading ; the exterior ones longer than the disk ; rays 8-10. 
(H. strumosus and H. tenuifolius, Ell.) — Mountains of Georgia, and northward. 
Sept. — Stem 29 -59 high. Leaves 3'-6' long, obtuse at the base. 
16. H. hirsutus, Raf. Stem hirsute, simple or forking at the summit ; 
leaves opposite, short-petioled, tapering from the broad and rounded, sometimes 
slightly cordate base, acuminate, serrate, very rough above, paler and rough-. 
hairy beneath; scales of the involucre ovate-lanceolate, acuminate, appressed, 
as long as the disk; rays about 12. (H. diversifolius, Ell., with the leaves 
broader; the upper oval, and nearly entire.) — Dry soil in the "upper districts. 
Sept. — Stem 2°-5° high. Leaves 3/—5! long. 
17. H. divaricatus, L. Stem smooth, simple, or corymbosely branched 
at the summit; leaves opposite, sessile, ovate-lanceolate, serrate, rounded or 
truncate at the base, very rough above, smooth or rough-pubescent beneath ; 
heads few, on short peduncles; scales of the involucre lanceolate or linear-lance- 
olate, spreading, as long as the disk; rays 8-12. (H. truncatus, Ell.) — Dry 
Woods, Florida, and northward. Sept. — Stem 29-39 high. Leaves 3!- 5/ long. 
* * * * Perennial: disk yellow : heads small : leaves narrow. 
18. H. microcephalus, Torr. & Gray. Stem smooth, much branched ; 
leaves opposite, or the upper ones alternate, lanceelate or ovate-lanceolate, acute, 
Sparingly serrate, rough above, paler and tomentose beneath, on short petioles ; 
$ numerous, on pubescent peduncles ; scales of the involucre ovate-lanceo- 
late, appressed ; rays 5-8. (H. divaricatus, Ell.) — Dry woods, Florida, and 
ame Sept. — Stem 39-5? high; the branches forking. Leaves 3'— 10! 
ng. 
19. H. Sehweinitzii, Torr. & Gray. Stem hispid, branching above ; 
leaves lanceolate, acuminate, sparingly serrate, nearly sessile, very rough above, 
hoary-tomentose beneath ; the lower ones opposite, the upper alternate and en- 
tire; scales of the involucre lanceolate, acute, with spreading tips; rays about 8. 
V Lite diari of North Carolina, Curtis. — Stem 39-59 high. Leaves 3’- 
ng. j d 
. ,?9. H. leevigatus, Torr. & Gray. Stem smooth and glaucous, the 
. forking; leaves smooth on both sides, opposite, or the upper 
