Ignatova E.A.1, Fedosov V.E.1,2, Fedorova A.V.3, Kuznetsova O.I.3, Ignatov M.S.1,3 2025. Two new species of Didymodon (Pottiaceae, Bryophyta) from Asian Russia // Arctoa. Vol. 34: 24-30 [in English].
1 – Lomonosov Moscow State University, Faculty of Biology, Plant Ecology and Geography Dept., Leninskie Gory Str. 1–12, Moscow 119234 Russia. E-mails: arctoa@list.ru; fedosov_v@mail.ru; misha_ignatov@list.ru. ORCID: (EI) 0000-0001-6287-5660, (VF) 0000-0002-5331-6346, (MI): 0000-0001-6096-6315
2 – Botanical Garden-Institute, Far Eastern Branch of the Russian Academy of Sciences, Makovskogo Street, 142, Vladivostok, 690024, Russia
3 – Tsitsin Main Botanical Garden, Russian Academy of Sciences, Botanicheskaya Str., 4, Moscow 127276 Russia. ORCID (OK): 0000-0002-5513-1329, (AF) 0000-0001-6096-6315
KEYWORDS: mosses, new species, ITS, trnG, molecular phylogeny
ABSTRACT. 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.
doi: 10.15298/arctoa.34.02