Abstract
The localities of sixteen species of cyanolichens of the family Collemataceae Zenker discovered in the Magadan Region are provided. Collema glebulentum (Cromb.) Degel. is recorded for the first time in the Russian Far East. Fourteen species are new for the Magadan Region. Collema furfuraceum (Arn.) DR., C. subflaccidum Degel., Leptogium saturninum (Dicks.) Nyl., Rostania occultata (Bagl.) Otálora, P.M. Jørg. et Wedin, Scytinium teretiusculum (Wallr.) Otálora, P.M. Jørg. et Wedin live as epiphytes in poplar-chosenia forests along the valleys of large rivers. Collema pulcellum Ach., C. flaccidum (Ach.) Ach., Leptogium cf. hirsutum Sierk occur in habitats unusual for them – in the subalpine mountain belt. Leptogium cyanescens (Ach.) Körb. was found only on the coast of the Sea of Okhotsk. All lichens are rare and occur in special habitats, manly refugia. Most species were found on the Olskoye Basalt Plateau and the Atargan Peninsula. The localities of Collema pulcellum, Leptogium cyanesces, L. cf. hirsutum are outside their ranges; these lichens are relics of the Miocene-Pliocene mesophilous flora.
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