COMPOSITE. 191 



HAB. Swamps. Can. and N. S. Sept. Nov. If. Stem2 3 

 feet high. 



19. & odora Ait. : stem erect, pubescent ; leaves linear-lanceolate, 

 entire, smooth, scabrous on the margin ; racemes paniculate. 



HAB. Fertile woods. Can. to Car. Aug. Oct. It. Stem 3 

 feet high, pubescent near the summit. Racemes recurved, form- 

 ing a pyramidal panicle. The flowers when dried, form an ex- 

 cellent substitue for tea, and have been exported to China. 

 Pursh. The leaves yield by distillation, a fragrant volatile oil. 

 Big. Med. Bot. i. 187. Golden Rod. 



*** Racemes erect. 



20. S. speciosa Nutt. : stem smooth, simple or virgately branched ; 

 leaves lanceolate, entire, somewhat fleshy, scabrous on the margin ; 

 the lower very broad ; radical ones subserrate ; racemes terminal, erect 

 and compound, pubescent ; peduncles mostly shorter than the involu- 

 cre ; rays elongated. S. sempervirens Mich. 



HAB. Shady woods. N. J. to Car. Sept., Oct. If. Stem often 

 6 feet high, smooth and sulcate. Leaves large. Racemes numer- 

 ous, terminal and erect ; rays very broad. 



21. S. bicolor Linn. : stem and leaves hairy ; leaves elliptic, the 

 lower ones serrate ; branches leafy ; racemes erect ; scales of the in- 

 volucre obtuse. Aster bicolor Nees and SprengeL 



HAB. Dry hills. Can. to Car. Aug. Oct. 2J..Stem 12 

 feet high, erect, very pubescent. Leaves covered with a whitish 

 pubescence. Flowers numerous, rather large, in short clusters, 

 forming a compact raceme along the upper part of the stem ; 

 rays nearly white. 



22. $. petiolaris Ait. : stem erect, villous ; leaves elliptic, somewhat 

 scabrous, petiolate ; racemes erect ; rays elongated. 



HAB. Sandy woods. N. J. to Car. Sept., Oct. If. Stem 2 3 

 feet high, very villous. Leaves large, the upper ones nearly ses- 

 sile, the lower tapering into a petiole. Racemes numerous, short. 



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

 very entire, smooth, scabrous on the margin ; radical ones serrate j 

 racemes paniculate, erect ; peduncles smooth. 



HAB. Sandy woods. N. J. to Car. Aug. Oct. If . Stem 2 

 feet high, very smooth. 



24. *S>. virgata Mich. : stem smooth and simple, summit racemose ; 

 leaves smooth, lanceolate-oblong, somewhat obtuse, appressed to the 

 stem, diaphanously punctate ; the upper ones small and entire ; branch- 

 es of the panicle elongate, racemed at the summit ; peduncles erect, 

 smooth, filiform and squarrose. 



HAB. Swamps. N. J. to Geor. Sept., Oct. If. Stem 46 

 feet high, much attenuated. Leaves gradually diminishing up- 

 wards ; lower ones very large, serrulate. Flowers small. 



25. S. casia Ait : stem erect, smooth ; leaves lanceolate, smooth ; 

 racemes erect ; rays middle-sized. 



