Paper presents new data on terrestrial Cyanoprokaryota revealed on the banks of the Polisarka, Pana, Varzuga rivers on the Kola Peninsula, Murmansk Region. The region is one of the most studied in Russia in terms of species composition of Cyanoprokaryota (359 species), but hard-to-reach central area of Kola Peninsula is still poorly investigated. In shore ecotopes and terrestrial habitats in the forest adjacent to the rivers, 23 taxa of Cyanoprokaryota were revealed. Poor species diversity in all studied communities is typical for this area. The most diverse species composition was on the rocks, both wet and dry. Stigonema hormoides (Kütz.) Bornet et Flahault, S. informe (Kütz.) Bornet et Flahault, S. minutum (C. Agardh) Hassall ex Bornet et Flahault, S. ocellatum (Dillwyn) Thur. ex Bornet et Flahault were the most common species in the investigated samples. In the birch, spruce and pine forests soil Cyanoprokaryota were rare and not abundant. Interesting records are Asterocapsa sp. and Microchaete sp. revealed together with other cyanobacteria, lichens and mosses on wet rocks. Generalized original and literature data on Cyanoprokaryota of the Polisarka, Pana, Varzuga rivers district are discussed.
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