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(A) Distribution of cytotypes of Cardamine torrentis s.l. (comprising C. torrentis s.s. and C. valida), C. schinziana and C. amaraeiformis in Japan and South Korea. (B) Distribution of cytotypes of C. yezoensis in Hokkaido and northern Honshu. Intra-population cytotype variation is illustrated by two- to four-coloured symbols. Type localities (locus classicus) of relevant names are indicated by species epithets.
