4lti SYNGENESIA 9UPERFLUA. 



* * * Pappus double ; flowers mostly con/mbed. 



A. linariifolius : leaves linear, mucronate, thick, without nerves 01 

 punctures, carinate, scabrous, rigid ; those of the branches recurved ; 

 stem subdecumbent ; branches fastigiate, elongated, 1-flowered -, 

 calyx imbricate, as long as the disk. 



HAB. Dry fields, and on rocks. Sept. Oct. A foot high ; flower 

 violet. 



A. humilis : leaves oblong-ovate, acuminate, acute at the base, sca- 

 brous on the margin ; petiole short ; stem smooth, dichotomously 

 paniculate above, few-flowered ; calyx loose, subimbricate. 



HAB. Woods, &c. Aug. 7J. ; stem 12 feet high ; leaves large ; 

 flower white. 



A. amygdalinus : leaves lanceolate, attenuate at the base, acuminate, 

 scabrous on the margin; stem simple, corymbose-fastigiate at the 

 summit ; calyx loose, imbricate ; scales lanceolate, obtuse. 



HAB. Fields and low grounds. July Aug. 7J. ; a foot high ; 

 flower white. 



344. SOLIDAGO. Golden-rod. 



* Racemes secund ; leaves triply nerved. 



S. canadensis : stem villous, leaves lanceolate, serrate, triply nerved, 

 scabrous ; racemes paniculate, secund, recurved ; rays short. 



HAB. Old fields, &c. Aug. Sept. fy ; stem 3 4 feet high ; leaves 

 large. 



S. procera : stem villous, erect ; leaves lanceolate, serrate, scabrous, 

 villous beneath ; racemes spiciform, erect, when young drooping ; 

 rays short. 



HAB. Low grounds. Sept. Oct. Tj. ; stem 46 feet high. 



S. serotina : stem erect, terete, smooth ; leaves linear-lanceolate ; ra- 

 cemes paniculate, secund ; peduncles pubescent. 



HAB Meadows. Sept. *T\. ; stem 4 feet high; young leaves cil- 

 iate. 



S. gigantea : stem erect, smooth ; leaves lanceolate, serrate, scabrous 

 on the margin, obscurely triply-nerved ; racemes paniculate, secund ; 

 peduncles hairy ; rays short. 



HAB. Low meadows. Sept. Oct. QJ.; stem 4 7 feet high, pur- 

 plish. 



S. ciliaris : stem erect, smooth ; leaves lanceolate, subtriply nerved, 

 smooth, except on the margin, subserrate ; racemes paniculate, se- 

 cund ; peduncles smooth ; bracts ciliate ; rays short. 



HAB. Borders of woods. Aug. Q\. ; stem 3 feet high, angul. ? 

 radical leaves long. 



* * Racemes secund ; leaves veined. 



S. altissima : stem erect, hirsute ; leaves lanceolate, the lower ones 



deeply serrate, very rough, rugose ; panicles secund ; rays short 

 HAB. Old fields. Sept. Oct. 1\. ; stem 35 feet high. Variable. 

 S. rugosa : stem erect, hairy ; leaves lanceolate, very rough and ru- 



