SYNGENESIA.— FRUSTRANEA. 309- 



K H. angustifolius : stem slender, slightly scabrous ; 

 leaves narrow-lanceolate, revolute on the margin, 

 scabrous, entire, glaucous beneath ; upper ones 

 alternate ; scales of the calyx linear-lanceolate, 

 ciliate, expanding; chaff 3-toothed. 

 HAB. Pine barrens. Oct. U • Stem 3—5 ft, 

 high ; branch, few ; leav. 4 — 8 in. long ; fl. smalt 



* * Florets of the disk yellowish. 



| Leaves opposite. 



3. H. mollis: stem smooth below, scabrous above, 



leaves ovate-lanceolate, acute, serrate, scabrous 

 on the upper surface, pubescent and hoary be 

 neath ; flowers few, terminal. 

 HAB. Swamps. Aug. U. Stem 3—6 ft. high; 

 leav. very acute ; fl. few ; cal. hairy. 



4. H. divaricatus : stem smooth, branched ; leaves 



subopposite, sessile, ovate-lanceolate, triply-nerv* 

 ed, scabrous above, smooth beneath ; panicle tri- 

 chotomous, slender ; flowers very small. 

 HAB. Rocky woods. Aug. U . Stem 4—6 ft. 

 high ; leav. sub acuminate. 



5. H . frondosus : stem smooth below ; leaves ovate, 



acutely serrate ; peduncles scabrous ; calyx 

 squarrose, undulate, leafly, ciliate ; rays 8. 

 HAB. Woods. Aug.— Sept. U . Stem. 4— 5 ft, 

 high ; fl. small. 



6. H. trachelifolius : leaves ovate-lanceolate, acumir 



nate, serrate, triply-nerved, very scabrous above 

 and beneath ; scales of the calyx linear-lanceolate, 

 ciliate, the exterior ones longer. 

 HAB. Rocky woods. Aug.— Sept. U . Stem 3. 

 — Aft. high; fl. middle-sized. 



1 1 Upper leaves alternate. 



:. II. altissimus : leaves alternate, ovate-lanceolate, 

 serrate, scabrous, triply nerved, attenuate at the 

 apex, petiolate ; petioles ciliate ; scales of the 

 calyx lanceolate, ciliate. 

 HAB. Low grounds. Sept. U . Stem 4 — 6 ft. 

 high.purp. ; rays 16 ; chaff green. 



' H. giganteus : leaves alternate, lanceolate, serrate 



