F NORTH AMERICA. ?* 



ajern terete corymbose, leaves sessile oblong 

 linear acute, the upper alternate, corymbs fas- 

 tigiate foliose multiflore, peduncles and perian- 

 thes pubescent, segments lanceolate acute pap- 

 pus of 3 bristles from Texas or Louisana found 

 by Binder, a tall plant probably perennial, leaves 

 short uncial, flowers pale incarnate and hand- 

 some profuse. 



LUTRIS and VERNONIA. 



These two Genera once blended in Serra* 

 tula (as so many other G. are in all akin) in- 

 clude a crowd of fine plants deserving a good 

 monograph. Of Liatris our compilers have 18 

 ep. but I know many more, several being yet 

 blended as varieties, and as they offer various 

 inflorescence must be divided at least in 4 or 5 

 subgenera: of Vernonia only 10 are in Eaton* 

 my V. albiflora and missurica described atl j. 

 1833 are omitted, and I have many more N. sp. 

 Vern. longifolia^ Intifolia, bremfolia, crinita, 

 hu mills Sfc. I shall merely add here the subg. 

 of Liatris and a few N. sp. 



927. LIATRIS Aiton. 1 Subg. Scariola 

 Raf. perianthe squarrose ovate or hemisphe- 

 rical, multiflore, pappus hardly plumose, flowers 

 chiefly racemose or spicate, root bulbose 2d. 

 Teretiola perianthe oblong or terete imbricate 

 adpressed, multiftore, flowers terminal few, root 

 bulbose 3d. Osmilis R. per. hemisph. adpres- 

 sed multifl. pappus scabrous not feathered,flow- 

 ers corymbose or terminal, root not bulbose 

 4th Rhodilis R. per. terete Sflore few scales 

 colored, ligulate pappus rcaly feathery, fl. race- 

 mosc, root bulbose 5th Euthyrsis \{. per. o- 

 blong 5flore, few scales adpressed, flowers thyr- 

 soidal, root not bulbose 6th Corymbilis R. 



