79 NEOBOT. 



and Georgia, nearer to 3L cyananthera thftn 

 M. anguslifoUa^ but leaves quite slender uni- 

 nerve smooth, anthers also bluish — thus we have 

 6 sp. of this pretty G. a 7th mi^ht be my iW. 

 pumila now my G. T^terolepta Neog. 1825. 

 EUPATORIUM and akin 



This extensive G. is now divided into many 

 Celestina, Brickellia, Mikania^ Kulinia &c, 

 besides my Eiitrocliium with scanose terete 

 perianthe, leaves verticillate &c,my Caradesia 

 with perianthe hemispherical multiliore: thus 

 reduced to the sp. with a definite number of 

 florets and segments of perianthe, it is still pro- 

 lific The American Cacalias are very near, 

 but form 3 peculiar Genera, my Epatilis 205, 

 I^lesadenia and Hasteola, 



936. MESADENIA P.af. perianthe 5flcH-e, 

 terete with 5 equal segments, phoranthe with a 

 thick gland in the centre and 5 flowers around 

 k, (this gland is an abortive neutral floret some- 

 times evolved) calicule obsolete or only a small 

 ffcale, florets with tubular hmb deeply 5d, an- 

 thers inclosed, stigmas 2 or 4 hardly exerted> 

 se^ds smooth oblong or clavate, pappus downy 

 capillary. Perennials^ leaves dlternate la>rg€ 

 thickisJi^ flowers white corymbose or panicu' 

 late, — A north American G. of many sp, quite 

 distinct and natural by the singular structure of 

 phoranthe, noticed by Elliot and Nuttul, the 

 central gland is variable ovate acute, or angu- 

 lar tridentate, or seldom changed into a neutral 

 floret which has then the ovary dentate instead 

 of downy. I have even noticed some flowers 

 T^rf>ere there was only this neutral floret in the 

 periaothe, lacking anthers and Myie, another 

 anomaly is the quadruple stigmas of som« flcH-et^ 

 This G, is nearer Kleinia than CacMia, Akin 



