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Results of study on moss flora of “Sibirskiye Uvaly” Nature Park, located in the Nizhnevartovsk District of Khanty-Mansi Autonomous Area of West Siberia, are published. The annotated list includes 74 species, 21 of them are new to Sabun River Basin (marked by asterisk).

First records of Myxomycetes for the Republic of Belarus, Basidiomycetes for the Novosibirsk and Volgograd regions, the Republic of Altai, lichens and lichenicolous fungi for the Tver Region, the republics of Altai and Tyva, bryophytes for Novaya Zemlya, the Pskov, Tula and Saratov regions, the Republic of Ingushetia, the Khanty-Mansi Autonomous Area — Yugra, the Republic of Buryatia, the New Siberian Islands Archipelago, the Peninsula and excluded lichens for the Republic of Altai are presented. Data on localities, habitats, substrates and herbarium specimens of all species are provided.

The article presents the results of a study of the adaptation mechanisms of wood introducers of the family Rosaceae Juss. It was shown that a high content of photosynthetic pigments Nbi, Chl, Flv falls on the period of flowering and fruit ripening in plants. Pigment composition of leaves Padus maakii and Sorbaria sorbifolia indicates their high physiological status and adaptability in culture conditions.