SYSTEMA COMPOSITARUM (ASTERACEARUM) NOVA

摘要

On the basis of the published results of recent molecular systematic studies, changes are made to the author's classification of the Compositae. To the subfamily Mutisioideae is added the tribe Stifftieae, to the Carduoideae the tribes Gochnatieae, Hecastocleideae, Dicomeae and Pertyeae, to the Cichorioideae the tribe Gymnarrheneue and to the Asteroideae the tribe Corymbieae. The tribe Heliantheae is divided into 13 supersubtribes, 12 of which are newly established. New tribal placements are accorded to the genera Wa-rionia (Gundelieae), Haastia (Senecioneae) Anisopappus and Centipeda {Heliantheae). Further discussed is the problem of the relationships between phylogenetic trees, cladograms and classifications (taxograms) and an index of homomorphy HI is proposed as a measure of the degree of isomorphy of a classification and a corresponding cladogram.