COMPOSITE. (COMPOSITE FAMILY.) 253 



12. H. tomentOSUS, Michx Stein stout, hirsute, branching, leaves all 

 alternate, or the lowest opposite, very rough above, tomentose beneath, slightly 

 serrate; the lowest large (6'- 12'), ovate, on short winged petioles; the upper 

 ones oblong; heads large; scales of the involucre numerous, lanceolate, 

 a uinhiate, villous, spreading; rays 15-20. Open woods, and margins of 

 nVl Is, Florida to North Carolina. Sept. Stem 4- 8 high. Rays 1'- 1^' 

 long. 



13. H. tuberosus, L. Stem tall, branched, smooth below, hirsute above; 

 leaves opposite, ovate or ovate-lanceolate, acuminate, serrate, rough above, 

 pubescent beneath ; the lower often slightly cordate, 011 short winged petioles ; 

 scales of the involucre linear-lanceolate, hirsute, about as long as the disk ; 

 rays 12-15. Rich soil in the upper districts. Sept. Stem 5 -8 high. 

 Lowest leaves 6'- 12' long. Heads large. Kays 1^' long. 



14. H. Strumosus, L. Stem simple or branched, rough above; leaves 

 lanceolate or ovate lanceolate, acuminate, slightly serrate, short-petioled, very 

 rough above, paler and smooth, or sometimes softly pubescent beneath ; 

 scales of the involucre lanceolate, acuminate, as long as the disk, spreading; 

 rays 8-10. Dry soil, common. Sept. Stem 2 - 4 high, sometimes glau- 

 cous. 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 

 surf u e, smooth or roughish beneath, abruptly short-petioled; scales of the 

 involucre lanceolate-linear, spreading; the exterior longer than the disk ; 

 rays 8-10. Mountains of Georgia, and northward. Sept. Stein 2 -5 

 high. Leaves 3'- 6' long. 



16. H. hirsutus, Raf. Stem hirsute, simple or forking at the summit; 

 leaves opposite, short-petioled, tapering from the broad and rounded, some- 

 times slightly cordate base, acuminate, serrate, very rough above, paler and 

 rough-hairy beneath ; scales of the involucre ovate-lanceolate, acuminate, ap- 

 pressed, as long as the disk ; rays about 12. 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- 

 lanceolate, spreading, as long as the disk; rays 8 -12. Dry woods. Sept. 

 Stem 2- 3 high. Leaves 3' - 5' long. 



18. H. undulatUS, Chapm. Perennial; stem scabrous, 3-5 high; 

 leaves linear-lanceolate, sessile and mostly dilated at the base, undulate, the 

 margins revolute, very seabrous above, pubescent beneath, 3' -5' long; in- 

 volucre pubescent; rays 12-18, 1'long; achenia margined. (H. angusti- 

 folius, var., 1st edit. H. Floridanus, Gran, in part.) Marshes near the 

 coast, West Florida. Sept. - Nov. 



* * * * Pfrpn nfal: disk yellow : heads small : leaves narrow 



19. H. parviflorus, Bernli. Stem smooth, much branched; leaves op- 

 posite, or the upper ones alternate, lanceolate or ovate-lanceolate, acute. 



