302 SYNGENESIA.— SUPERFLUA. 



lanceolate, hispid, very entire ; radical ones sul> 

 cuneiform, serrate ; racemes paniculate ; secund 

 HAB. Barren fields. Sept. U . Plant gray, 1 — 

 2 ft. high. 



13. S. patula ; stem erect, smooth; leaves elliptical, 

 serrate, smooth ; lower ones obloDg-spathulate ; 

 racemes paniculate, secund, spreading ; peduncles 

 pubescent. 



HAB. Dry woods. Sept. U. Stem t ft. high, 

 virgate ; racemes short. 



14. S. ulmifolia : stem erect, smooth, striate; leaves 

 elliptical, deeply serrate, acuminate, villous be- 

 neath ; radical ones obovate ; racemes paniculate, 

 secund ; peduncles villous ; rays short. 



HAB. Low grounds. Aug. — Sept. U . Stem oft. 

 high ; leaves large. 



15. S. arguta : stem erect, smooth; leaves smooth, 

 acutely and unequally serrate ; cauline ones ellip- 

 tical ; radical ovate-oblong ; racemes paniculate, 

 secund ; rays elongate. 



HAB. Meadows. Aug. U . Stem 2 ft. high. 



16. S.juncea: stem erect, smooth; leases lanceolate, 

 smooth except on the margin ; lower ones serrate ; 

 racemes paniculate, secund. 



HAB. Meadows and dry woods. Sept. U . Stem 

 Sft. high, slender. 



17. S. elliptica : stem erect, smooth ; leaves elliptical, 

 smooth, serrate ; racemes paniculate, secund ; 

 rays of middling length. 



HAB. Dry woods. Sept. U. Stem 3 ft. high; 

 lear. large and broad. 



18. S. sempervirens : stem erect, smooth; leaves 

 linear-lanceolate, somewhat fleshy, smooth, very 

 entire, scabrous on the margin ; racemes pani- 

 culate, secund ; peduncles hairy. 



HAB. Swamps. Sept.— Oct. U. Stem 2 ft. high-. 

 subglauc. ; rays narrow, elong., 5 — 6. 



19. S. virgata : stem smooth, quite simple; leaves 

 subcuneate-laneeolate, obtuse, very smooth, up- 

 per ones very entire, appressed to the stem, 

 growing smaller above ; branches of the panicle 

 elongate, racemed at the summit : peduncles: 

 smooth, seeund. 



