Ignatova, E.A., V.E. Fedosov, A.V. Fedorova, O.I. Kuznetsova & M.S. Ignatov. 2024. Two new species of Didymodon (Pottiaceae, Bryophyta) from Asian Russia

Arctoa (2025) 34: 24–30

doi: 10.15298/arctoa.34.02

An additional study of the specimens of Didymodon using a morpho-molecular approach resulted in the description of two species new to science from Asian Russia. Didymodon ussuriensis was described from the southern Russian Far East (Ussurijsky Reserve) and found also in Amur Province (Tukuringra Range) and Zabaikalsky Territory. Didymodon sibiricus was described from Yakutia (Suntar Khayata Range); it was also found in Taimyr Peninsula (Byrranga Range) and southern Siberia (Republics Altai, Tyva, and Buryatia, Zabaikalsky Territory). Descriptions, illustrations, distribution, ecological data, and comparison with similar species are provided.