190 DICOTYLEDONOUS PLANTS. 



tenuate at both ends, acuminate, glabrous above, rugose and scabrous 

 beneath, with appressed serratures in the middle ; racemes secund. 

 HAH. Old fields. Penn. to Virg. Aug. Oct. U- Sttm 2 5 

 feet high. 



11. & memoralis Ail.: stem erect, tomentose ; radical leaves some- 

 what cuneate, serrate ; cauline ones lanceolate, hispid, very entire ; 

 racemes paniculate, secund. 



HAB. Sandy fields. Can. to Car. Aug. Oct. It. Stem 1 2 

 feet high. Flowers in a small and somewhat corymbose panicle. 

 The whole plant has a greyish or pulverulent appearance. 



12. S. paiula Wittd. : stem erect, smooth ; leaves elliptic, serrate, 

 smooth ; radical ones oblong-spathulate ; racemes paniculate, secund, 

 spreading ; peduncles pubescent. 



HAB. Shady woods. N. S. Sept., Oct. U- Stem2 feet high, 

 virgate and striate. Racemes short, with the flowers rather 

 large. 



13. fi>. uluitfolitt Ji'i/liL : stem erect, smooth, striate; leaves elliptic, 

 deeply serrate, acuminate, villons beneath ; radicle ones obovatc j ra- 

 cemes paniculate, secund ; peduncles villous ; rays short. 



HAB. Shady woods. N. S. Aug. Oct.' U.Stem 3-4 feet 

 high. Flowers in an oblong terminal panicle composed of secund 

 and recurved racemes. 



14. S. arguta Alt. : stem erect, smooth; leaves smooth, acutely and 

 unequally serrate ; radical ones spathulate-ovate ; cauline elliptic ; ra- 

 cemes paniculate, secund ; florets of the ray long. 



HAB. Woods and meadows. Can. to Car. Sept. Nov. If. 

 Stem 2 3 feet high, smooth or a little pubescent. Flowers on 

 recurved racemes forming long terminal panicles. 



15. S. jnncca Ait. : stem erect, smooth; leaves lanceolate, smooth, 

 scabrous on the margin ; lower ones serrate ; racemes paniculate, se- 

 cund. 



HAB. Sandy fields. N. J. to Car. Aug.' Oct. U.Stem 3 

 feet high, slender ; branches when young pubescent. Leaves 

 long, lanceolate. Racemes secund, forming a scattered terminal 

 panicle. 



16. & elHptica Ait. : stem erect, smooth ; leaves elliptic, smooth, 

 serrate ; racemes paniculate, secund ; rays middle-sized. 



HAB. Shady woods. N. Y. to Car. ? Aug. Oct. It- Stem 

 2 3 feet high. Leaves large. 



17. 8. recurvata WiUd. ; stem erect, pubescent ; leaves lanceolate, 

 serrate, scabrous on the margin ; racemes elongated, secund, recurved, 

 paniculate. 



HAB. Shady woods. Penn. and Virg, Sept. Nov. 2J..Pursh. 



IS. S. sempervircns Linn. : stem erect, smooth ; leaves linear-lance- 

 olate, somewhat fleshy, smooth, very entire, scabrous on the margin ; 

 racemes paniculate, secund ; peduncles hairy. 



