New records of Vaucheria (Ochrophyta, Xanthophyceae) in Russia

This paper presents new data on the species of genus Vaucheria in Russia from analysis of original and museum collections. In total, 20 species were identified in 152 locations of 22 administrative regions of the European Russia, Western Siberia, and the Russian Far East. Vaucheria lii, a rare multiregional species new to Russia, has been found in 6 locations of the Vologda, Moscow, Nizhny Novgorod, Yaroslavl regions and North Ossetia. V. cruciata, V. schleicheri, V. taylorii, V. uncinata were recorded for the European Russia for the first time. V. birostris and V. pseudogeminata are new records for Western Siberia. Rank of V. terrestris var. nuoljae was raised up to separate species with V. terrestris var. major as a new synonym. The distributions of the frequently reported species, V. dichotoma and V. geminata, are critically analyzed.