Chromosome Numbers of North African Phanerogams. III. Some Counts in Centaurea (Compositae, Cardueae)

Abstract

Chromosome numbers are reported for ten North African representatives belonging to seven sections of the genus Centaurea (Compositae, Cardueae). C. aegyptiaca and C. maroccana are investigated cytologically for the first time, for C. nigra subsp. gueryii a tetraploid cytotype is newly reported.