Article

A great many studies by Bulgarian botanists were published during the last decade. A brief sur· vey of their subjects and main results is provided, together with a full bibliography. Apart from providing new data on chromosome numbers and karyograms relating to Bulgarian plant material, many of these studi es uncover basic mechanisms and patterns of chromosomal evo· lution in the investigated groups. Polyploidy, dysploidy and aneuploidy are a frequent corol· lary of evolutionary processes in various species and species groups of the Bulgarian flora.