ECOLOGICAL FEATURES OF NEW SPECIES OF XYLOTROPHIC PYRENOMYCETES (ASCOMYCOTA) FOR SKOLIVSKI BESKYDY

Ya. Bublyk


DOI: http://dx.doi.org/10.30970/sbi.1001.465

Abstract


The fieldwork was carried out from the end of September to early December 2015, during the main fruiting period. At this time, on the territory of Skolivski Beskydy, we found 26 new species of xylotrophic pyrenomycetes. These species represent 20 ge­nera, 14 families, 8 orders, 3 subclasses (Hypocreomycetidae, Sordariomycetidae and Xylariomycetidae), the class Sordariomycetes, the subphylum Pezizomycotina in the Ascomycota phylum. Sordariomycetidae is represented by the largest number of species (17). Six species of xylotrophic pyrenomycetes belong to Xylariomycetidae subclass. The smallest number of species (3) of xylotrophic pyrenomycetes in the forest ecosystems of Skolivski Beskydy were established in Hypocreomycetidae subclass. Only three species belong to Incertae sedis Sordariomycetes. All new xylotrophic pyrenomycetes were found on thirteen species represented by eleven genera of tree plants. The highest number of species (13) of perithecial fungi were found on Fagus sylvatica L. Most of the established xylotrophic fungi (19 species) were found on branches and twigs, while only 7 – on stems. The largest number of fungi (17 species) were found on the earliest decay stages of dead wood. Most of the identified xylotrophic pyrenomycetes are corticolous destructors of dead wood, and lignicolous saprotrophs constitute much smaller part. For each of the identified species, its wood substrate, accommodation in the ecological niche and specialization of the species to decay stages of dead wood by the Renvall scale are presented.

Keywords: xylotrophic pyrenomycetes, ecological niches, forest ecosystems, dead wood, Eastern Carpathians.


Keywords


xylotrophic pyrenomycetes, ecological niches, forest ecosystems, dead wood, Eastern Carpathians

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