90 ARKIV FOR BOTANIK. BAND 13. NIO 15. 



representative of a certain division of the section Lepidaploa: 

 Paniculatce dichotomce, according to the structure of its inflor- 

 escence. I think Gleason, having recently come across 

 a member of the Havanenses having the same inflorescence, 

 viz. V. hieracioides Griseb. (= V. Orientis Gleason, 1913), 

 will not now deny the relationship between V. menthcefolia and 

 Vernonice havanenses. In fact, V. havanensis highly resembles 

 V. menthcefolia, and some specimens of it can only be distin- 

 guished from that species by the characters of the petioles. V. 

 havanensis and its allies, V. cubensis Griseb. and V. hieracioides 

 Griseb., have the leaves attenuate into the petioles, the upper 

 ones even without distinct petioles, while in V. menthcefolia, 

 all leaves have very distinct, often very long petioles. As to 

 the structure of the involucres and flowers, etc., no differences 

 have been found between V. menthcefolia and the Vernonice 

 havanenses. 



Conspectus specieruiu hujus suDsectionis. 



I. Folia basi in petiolum brevem, ssepe indistinctum atte- 

 nuata. Species V. havanensi DC. proxima?. 



A. Folia tenuiter membranacea, subglabra, subhevia. 

 Calathidia ultra 18-flora. Involucrum 6 7 mm al- 

 tum. Pappi setae alba?. Corolla 7 8 mm longa. An- 

 thera? circ. 3 mm longa?. V. havanensis DC. 



B. Folia firmula, laxissime induta, scabriuscula. Cala- 

 thidia infra 14-flora. Involucrum 3 5 mm altum. 

 Pappi seta? brunnescentes. Corolla 6 6,5 mm longa. 

 Anthera? circ. 2 mm longa?. 



]. Folia anguste rhomboideo-elliptica, indumento 

 brunnescente, vix nitida. Inflorescentia vulgo 

 habitu scorpioidea, cymis elongatis, multifloris, 

 divaricatis, calathidiis brevius pedunculatis. Ca- 

 lathidia 11 14-flora. Squama? involucri ap- 

 pressa?, obtusiuscula? vel breviter acuminata?, sa- 

 tis molles. V. cubensis Griseb. 



1. Folia obovata vel late elliptica, rigida, nitidula, 

 indumento nigricante. Inflorescentia habitu pa- 

 niculata, cymis brevibus, paucifloris, calathidiis 

 primariis longe pedunculatis. Calathidia 6 7 



