XVI International Botanical Congess

There are three main areas of high biodiversity and recent evolutionary development of Cyperaceae on the Russian Far East (RFE), which were revealed through the analysis of data concerning systematic relationships, geographical distribution and ecological differentiation taxa on RFE and neighbouring territories. (I) The Amur River basin, especially its central part. About 70 species (including endemics) are known only in this part of RFE (differential species). Here we have a monotypic endemic section Glauciformes of Carex (C. glauciformis Meinsh.). (II) The Sea coasts, which includes oceanic, suboceanic and subcontinental parts of RFE, it can be divided into three sectors - Bering Sea, Okhotsk Sea and Japan Sea. About 70 differential spp. are known here. (III) The Mountain range system of continental and high mountainous part of RFE. 6 differential species occur there. Its characteristic taxon is a monotypic section Japonici of Scirpus (S. maximowiczii Clarke).