COMPOSITE 189 



* HAB. Swamps and low grounds. Can. to Geor. N. to Subarc. 

 Amer. July Sept. 1. Stem 4 7 feet high. Flowers in a 

 pyramidal panicle which is recurved before flowering. 



3. S. scrotina Ait. : stem erect, terete, smooth ; leaves linear-lanceo- 

 late, serrate, smooth, 3-nerved ', racemes paniculate, secund ; pedun- 

 cles pubescent. 



HAB. Woods. N. S. Sept., Oct. !. Stem 4 feet high. Leaves 

 ciliate on the margin when young. 



4. & gigantea Ait. : stem erect, smooth ; leaves lanceolate, serrate, 

 scabrous on the margin, obscurely 3-nerved ; racemes paniculate, se- 

 cund ; peduncles hirsute ; rays short. 



HAB. Low grounds. N. S. Aug., Sept. If. Stem 47 feet 

 high, purplish. 



5. S. ciliaris Willd. : stem erect, smooth \ leaves lanceolate, sub-3- 

 nerved, smooth, scabrous on the margin, subserrate ; raceme panicu- 

 late, secund; peduncles smooth ; bracts ciliate ; rays short. 



HAB. Woods. Penn. Aug. If. Stem 3 fet high, angular. 

 Radical leaves oval, petioled. 



6. S. reflexa Mt. : stem erect, villous ; leaves lanceolate, subserrate,. 

 3-nerved, scabrous, reflexed ; branches paniculate, subsecund, reflexed. 



HAB. Pine woods. N. J. to Car. Aug., Sept- 2j!. Leaves 

 narrow-lanceolate, with a few serratures in the middle. Racemes 

 short. 



7. S. lateriftora Linn. : stem erect, somewhat hairy ; leaves lanceo- 

 late, sub-3-nerved, smooth, scabrous on the margin ; the lower ones 

 slightly serrate ; racemes paniculate, somewhat recurved, secund. 



HAB. Dry woods. Can. to Car. Aug. Oct. If.. Stem 23 

 feet high ; the lower part sometimes with lateral flowering 

 branches. Flowers larger and leaves broader than in any of the 

 preceding species. 



** Racemes secund. Leaves veined. 



8. S. aspera Ait. : stem erect, terete, hairy ; leaves ovate, somewhat 

 elliptic, very scabrous, rugose, serrate, without ner-ves ; racemes pani- 

 culate, secund. 



HAB. Fields and woods. N. Y. to Car. Sept. If. Stem 35 

 feet high, very hairy and somewhat scabrous. Flowers in a long 

 terminal panicle composed of secund racemes. 



9. <S>. altissima Linn. : stem erect, hispid ; leaves lanceolate, the 

 lower ones deeply serrate, very scabrous, rugose ; panicle secund and 

 often spreading and A. rugosa Willd. 



HAB. Fields and woods. Can. to Car. Aug., Sept. Lf. Stem 

 3 7 feet high, robust and hairy, much branched at the summit. 

 Leaves sessile, lanceolate, acute, rugose and scabrous. Flowers 

 in large and almost corymbose panicles composed of small, 

 nearly erect recurved branches. A very variable species. 



10. 8. scabra Willd, : stem erect, hairy, sulcate ; leaves oblong, U- 



