CHROMOSOME NUMBERS IN 11 SPECIES OF TARAXACUM SECTION ERYTHROSPERMA DT. FROM POLAND

摘要

Karyology of eleven species of Taraxacum sect. Erythrosperma from Poland has been studied. Somatic chromosomenumbers are given for the following species: T. bellicum, T. brachyglossum, T. cristatum, T. disseminatum,T. dissimile, T. lacistophyllum, T. parnassicum, T. plumbeum, T. proximum, T. scanicum, and T. tenuilobum.Although the hypertriploid chromosome number was previously reported in Poland for T. lacistophyllum, T. parnassicum,T. scanicum, and T. tenuilobum, we proved the triploid chromosome number 2n = 24 in all thespecies investigated, which is consistent with the data reported from other regions of Europe. The chromosomenumbers of T. bellicum, T. cristatum, T. disseminatum, T. dissimile, T. plumbeum, and T. proximum growingin Poland are published for the first time.