Morphometric comparison of Senecio germanicus and S-nemorensis (Compositae) with a new species from Romania

Morphometric comparison of three taxa of the Senecio nemorensis group, name ly S. germanicus Wallr., S. nemorensis L. and a new species S. dacicus Hoda lova & Marhold is presented. S. dacicus, representing plants with eight lig ules from the Romanian Carpathians, previously identified as S. nemorensis L., is shown to be clearly distinct from the Siberian plants of S. nemorens is, which include the lectotype of this Linnaean name. Detailed data on the distribution of S. dacicus are presented. Numerical methods used include p rincipal components analysis, cluster analysis, and canonical and non-param etric classificatory discriminant analysis (C) 1998 The Linnean Society of London.