SYNGENESIA.— SUPERFLUA. 303 



HAB. Swamps. Oct. U . Stem atten., 3 — i ft. 



high ; lower leav. subserrate ; jl. small. 

 ?0. S. odora : stem erect, pubescent, slender ; leaves 



linear-lanceolate, very entire, smooth, scabrous on 



the margin ; racemes paniculate, secund. 

 HAB. Rocky hills and dry wood*. July — Aug. U . 



Stem subvirg. ; plant odorous. 



* * * Racemes erect. 



21. S. speciosa : stem smooth, simple, or with virgate 

 branches ; leaves lanceolate, entire, somewhat 

 fleshy ; lower ones very broad ; radical subser- 

 rate ; racemes erect and compound, pubescent : 

 rays about 5, elongate. 



HAB. Shady woods. U. Stem 4— 6 ft. high, 

 sulc. ; leav. large; pedunc. short. 



22. S. bicolor : stem hairy ; leaves elliptic, hairy ; 

 lower ones serrate ; branches leafy ; racemes 

 short, dense, erect ; scales of the calyx obtuse. 



HAB. Dry hills and woods. July — Aug. U . Stem 

 1 — 2 ft. high ; rays white. 



23. S. stricta : stem erect, smooth ; cauline leaves 

 lanceolate, very entire, smooth, scabrous on the 

 margin ; radical ones serrate ; racemes paniculate, 

 erect; peduncles smooth. 



HAB. Sandy woods. Sept. U. Stem 2 ft. high ; 

 panic, dense. 

 14, S. pet iol arts : stem erect, villous ; leaves elliptic, 

 somewhat scabrous, petiolate ; racemes erect ; 

 rays elongate. 



HAB. Sandy fields. Sept.— Oct. U. Stem branch.; 

 rac.em. numerous, short. 

 !6. S. lanceolata : stem angular, hairy, much branched : 

 leaves lanceolate-linear, entire, 3— 5-nerved, sca- 

 brous on the margin, minutely hispid on nerves 

 beneath; corymbs terminal, fastigiate ; rays 15 — 

 20, as long as the disk. 



HAB. Meadows. Sept. U . Stem 3—4 ft. high , 

 Jl. glomerate ; cal. ovate. 



5. tenuifolia: stem angular, much branched. 

 smoothish ; leaves linear, very narrow, numer- 

 ■ brous-ciliate on the margin, obscurely : : 



