On the Question of a Northern Boundary for Geographical Distribution of Viola diamantiaca Nakai in the Russian Far East

摘要

Herbarium specimens are being revised for Viola diamantiaca Nakai from South Primorye, which was previously identified as Viola rossii Hemsley. This new species is from the South Manchuria region of Russia. Its habitat within the Kedrovaya Pad NaturalReserve represents its northern limit of geographical distribution in the Far East. Here, we provide descriptions and the main diagnostic characteristics for both V. diamantiaca and V. rossii.