Cytogeographical study of centaurea L.sect. acrocentron(Cass.)DC.(Asteraceae)in Greece

摘要

The cytology, cytogeography, morphology and systematics of Centaurea sect. Acrocen- tron in Greece are discussed. The species of this section are divided into groups of related taxa according to their morphology, cytology and geographical distribution. The chromosome numbers of 13 taxa are given for the first time and the numbers of 13 taxa are confirmed.