Abstract: Results of studies on the karyomorphology of three populations of the monotypic genus Di-chotomanthes Kurz are presented in this paper. The interphase nuclei and prophase chromosomes are catego-rized to be of simple chromocenter type and of proximal type respectively. The metaphase chromosomes range from 1.66{jm to O.SJpm in length. The karyotype is formulated as 2n = 34 = 28m + 6sm, and the kary-otypic asymmetry is of 1 A type. The same basic chromosome number and similar chromosome morphology of Dichotomanthes to those of members in the Maloideae support the point of view that Dichotomanthes belongs to Maloideae.

Key words: Dichotomanthes