New Finds of a Rare Species Mythicomyces corneipes (Agaricales, Basidiomycota) in Russia

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Abstract

Four new locations of the rare species Mythicomyces corneipes are reported from northeast of the European part of Russia (Komi Republic). The species is found in Europe and North America, sporadically in Asia and Africa, and is rare everywhere. Previously in Russia it was recorded from the North Urals and the Western Sayan. Most of the known localities belong to mountainous habitats; however, our finds were made in the flat part of the Komi Republic. The ITS nucleotide sequences for six collected specimens were obtained and deposited in the GenBank database. Phylogenetic analysis showed that our sequences form a distinct, well-supported clade that includes M. corneipes specimens from Europe. The article presents a description of the species, original photographs of basidiomes and their microscopic features, habitats of the species, clarifies its morphological features and provides information on the distribution and ecology of this species. Differences from morphologically similar species are discussed.

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About the authors

M. A. Palamarchuk

Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences

Author for correspondence.
Email: palamarchuk@ib.komisc.ru
Russian Federation, Syktyvkar

D. V. Kirillov

Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences

Email: kirdimka@mail.ru
Russian Federation, Syktyvkar

D. M. Shadrin

Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences

Email: shdimas@yandex.ru
Russian Federation, Syktyvkar

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Supplementary files

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2. Рис. 1. Mythicomyces corneipes (SYKOf 1145): а–б – базидиомы, в – местообитание, г – споры, д – плевроцистиды, е – каулоцистиды. Масштаб – 10 мкм.

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3. Fig. 2. Mythicomyces corneipes (SYKOf 4634): a – basidiomes, b – habitat, c – cheilocystids, d – spores. Scale – 10 µm.

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4. Fig. 3. Results of phylogenetic analysis of ITS sequences of specimens of representatives of the Mythicomycetaceae family and morphologically similar taxa of the genus Galerina. Bootstrap support values (BS ≥ 70%) are indicated to the left of the branches of the phylogram constructed by the maximum likelihood method. Filled marks indicate sequences obtained in the present study (PP574428 – PP574433).

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