siem terete corymbose, leaves isessile 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. 



LIATRIS and VERNONIA. 



These two Genera once blended in Serra^ 

 tula (as so many other G, are in all akin) in» 

 elude a crowd of fine plants deserving a good 

 monograph. Of Liatris our compilers have 18 

 sp. 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. alblflora and missurica described atl j. 

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

 Vern, longifolla^ latifoiia^ brevif'olia, crinlta^ 

 humilis iSpc. I shall merely add here the subg, 

 of Liatris and a few N. sp. 



927. LIATRIS Aiton.— 1 Subg. f^cariola 

 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, multiflore, flowers terminal few, root 

 bulbose — 3d. Osmilis^. per. hemisph. adpres- 

 sed multifl. pappus scabrous not feathered,flovv- 

 ers corymbose or terminal, root not bulbose— 

 4th Rfiodilis R. per. terete Sflore few scales 

 colored, ligulate pappus realy feathery, fl. race- 

 mose, root bulbose — 5th Eiithifrsis R. per. o- 

 blong Sflore, few scales adpressed, flowers thyr- 

 soidai, root not bulbose — 6th Corymhilis R. 



