Analysis of Sexual Polymorphism of the Plant of Subclass Rosidae in Siberia
Sexual systems and the associations with several ecological and life history attributes were examined for 977 native angiosperms of subclass Rosidae in Siberia. The majority of angiosperms in Siberia are hermaphrodites (87,7 %, <i>N </i>= 857). The most widespread forms of sexual differentiation are andromonoecy, gynodioecy and dioecy. The rarest forms of sexual differentiation are monoecy, trioecy and androdioecy. Seven of the 34 families are the richest in species with sexual differentiation: Aceraceae, Elaeagnаceae, Haloragaceae, Rhamnаceae, Diрsacaceae, Apiaceae, Geraniaceae.