Khrolenko Yu. A., Muratova E.N.
Botanicheskii zhurnal 2016; 101(4): 416-427
Results of karyological study of Senecio cannabifolius Less. are presented. This species from Kamchatka Peninsula has a high chromosome number (2n = 80) and may be consider as an octoploid provided the base number x = 10. Chromosomes of the species have two arms, and some of the chromosomes have uncertain position of the centromere, or are dot-shaped. Interphase nuclei contain 1-4 nucleoli. Different points of view on the base chromosome number of Senecio are discussed.