To the moss flora of the Tunka National Park (Sayan-Dzhida upland, Republic of Buryatia)

For the first time, a study of the moss flora of the Sayan-Dzhida Upland was conducted in 2018 and 2022 (Tunka National Park, Republic of Buryatia). A total of 239 moss species and 1 variety have been identified. Among them, there are 5 species new to the moss flora of Buryatia (Blindiadelphus diversifolius, Fissidens exilis, Leptopterigynandrum decolor, Schistidium frigidum, and Ulota hutchinsiae). New localities for five species listed in the Red Data Book of Buryatia (2013) are given: Didymodon perobtusus, Lescuraea incurvata, Plagiomnium acutum, Rhizomnium andrewsianum, and Struckia enervis. There are 73 moss species new for the Park. The features of the studied moss flora are discussed.