414 SYNGENESIA SUl'ERFLUA. 



late-linear ; superior subulate ; branches one-flowered, leafy ; scales 

 of the calyx lanceolate, acuminate, appressed; rays numerous, shorter 

 than the calyx 



EIAB. Salt marshes. Aug. Oct. %; stem 12 in. high ; flowers 

 large, jni.rp. 



A. salicifolius : leaves linear-lanceolate, nearly entire ; stem smooth, 

 paniculate above ; calyx loose, imbricate ; scales acute, spreading at 

 their points. 



HAB. Low grounds. Sept. 'ZJ.; stem tall; fl. middle-sized, red- 

 dish blue. 



A. novae angliee : leaves linear-lanceolate, amplexicaul, auriculate at 

 the base ; stem hairy and paniculate ; flowers subsolitary on the 

 branchlets, somewhat fastigiate ; scales of the calyx loose, linear- 

 lanceolate, rather longer than the disk. 



HAB. Fields. Aug. Oct. ^ ; stem 4 6 feet high ;fl. large, purp.- 

 bl. ; rays numerous. 



A. patens : leaves oblong-lanceolate, ciliate, cordate and amplexicaul, 

 scabrous and hairy on both sides, those on the branches minute ; 

 branches spreading, elongated, few-flowered; scales of the calyx 

 spreading, lanceolate. 



HAB. Rocky soils. Sept. Oct. 2J.; stem 1^2 feet high ; flowers 

 blue. 



1 1 Leaves lanceolate and ovate ; the lower ones serrate. 



a. Flowers corymbed. 



A. puniceus : leaves amplexicaul, lanceolate, serrate, somewhat scab- 

 rous ; branches paniculate ; calyx loose, longer than the disk ; leaf- 

 lets linear-lanceolate, subequal ; stem hispid. 



HAB. Brackish swamps. Sept. 7|.; stem 6 feet high, purple ; flow- 

 er large, purple. 



A. acuminatus : leaves broad-lanceolate, narrowed and entire at the 

 base, unequally serrate above, long-acuminate; stem simple, flexu- 

 ous, angular ; panicle divaricately dichotomous ; scales of the ca- 

 lyx loose, linear. 



HAB. Mountains. September, Tj.; stem 12 inches high ; leaves 

 large ; flower white. 



A. dracunculoides : leaves linear, acuminate, entire ; lower linear- 

 lanceolate, slightly serrate ; branches corymbose ; calyx imbricate ; 

 stem nearly smooth. 



HAB. Fields. Sept. Oct. %; stem 3 feet high; flower small, 

 white. 



b. Flowers panicled. 



A. ample. ricaulis : leaves ovate, oblong, acute, amplexicaul, cordate, 

 serrate, smooth ; stem paniculate, smooth ; branches 1 2 flowered ; 

 scales of the calyx closely imbricate. 



HAB. Dry woods. Sept. Oct. 1\. ; stem 18 inches high ; flower 

 blue. 



A. mutabilis : leaves subamplexicaul ; upper ones lanceolate, acumin- 

 ate, very entire ; inferior-lanceolate, narrow at the base, serrate ; 

 branches virgate ; calyx loose, shorter than the disk ; stem smooth. 



HAB. Fields and dry woods. Sept. 7J. ; stem 2 3 feet high ; flowet 

 purple. 



