COMPARATIVE AREALOGICAL STUDY OF SOUTHERN SIBERIAAND AMUR REGION PTERIDOFLORA
Comparative arealogical study of Southern Siberia and Amur region pteridoflora has been conducted. 32 species were found to be present in both these regions. 15 of them belong to Holarctic areal type, while 10 species belong to Asian areal type. A special feature of Southern Siberia pteridoflora is presence of endemic species.