History and peculiarities of study of the Far Eastern species of Euonymus

The Russian Far East is of particular interest to monographers of the genus Euonymus, because this is where the northern distribution limits of many East Asian species are. At the same time, the main problem is different understanding of the scope and status of a number of taxa by Russian and foreign botanists. The article presents the chronology of the most prominent results of various authors, Russian and foreign (primarily Chinese, Korean and Japanese), who contributed to taxonomic, environmental and chorological studies of the genus Euonymus. The contributions of N.S. Turczaninow, K.J. Maksimovich, F.B. Schmidt, V.L. Komarov, T. Nakai, Ya.I. Prokhanov, A.I. Tolmachev, B.A. Shukhobodsky, T.G. Leonova, N.N. Tzvelev, S.K. Cherepanov, K.V. Kiseleva, V.A. Nedoluzhko to the formation of the modern taxonomic concept of the genus Euonymus are analyzed. Unresolved issues of biology of the Far Eastern species are emphasized, the ways of to solve them are outlined.