Samara Journal of ScienceSamara Journal of Science2309-43702782-3016Samara State University of Social Sciences and Education5940810.17816/snv202094104Research ArticleEpiphytic myxomycetes on the bark of <i>Salix</i> and <i>Populus</i> in the southeast of Western SiberiaVlasenkoAnastasia Vladimirovna<p>candidate of biological sciences, senior researcher of Lower Plants Laboratory</p>anastasiamix81@mail.ruCentral Siberian Botanical Garden of Siberian Branch of the Russian Academy of Sciences301120209434382601202126012021Copyright © 2021, Vlasenko A.V.2021<p>The diversity of epiphytic myxomycetes developing on the bark of aspen and willow in the southeast of Western Siberia was studied. In the study area, aspens and willows most often dominate in intrazonal communities: in floodplains, ravines and gullies. Myxomycetes of the epiphytic complex were identified using two complementary methods: collecting fruiting bodies in the field and isolation in laboratory conditions on natural substrates (bark of living trees) using the moist chambers method. A total of 505 samples of myxomycetes were analyzed, where a sample is a specific group of myxomycetes formed from a single plasmodium. 64 species of myxomycetes were identified in the moist chambers and 8 species in the field. Despite the fact that the bark of the aspen and willow has very similar values of acidity (pH), the taxonomic composition of myxomycetes living on these trees varies greatly. As a result 72 species of myxomycetes were recorded on the bark of the aspen and willow in the southeast of Western Siberia on the willow bark only there were 51 species, on the aspen bark only there were 10 species, on the bark of both trees there were 10 species.</p>myxomycetesfungal-like protistsepiphyteswillowaspensubstrate specificitytaxonomic structurehabitatssoutheast of Western Siberiaplainмиксомицетыгрибообразные протистыэпифитыиваосинасубстратная специфичностьтаксономическая структураместообитанияюго-восток Западной Сибириравнина[Vlasenko A.V., Novozhilov Yu.K., Schnittler M., Vlasenko V.A., Tomoshevich M.A. Pattern of substrate preferences of free living protists (Myxomycetes) on decaying wood // Contemporary Problems of Ecology. 2018. Vol. 11, № 5. P. 494–502.][Власенко А.В., Новожилов Ю.К., Власенко В.А., Королюк А.Ю., Дулепова Н.А. Новые данные об облигатных копробионтных миксомицетах Сибири // Известия Иркутского государственного университета. Серия: Биология. 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