First Report on Macrofungi in the Greenhouses of the Donetsk Botanical Garden (Russia)

Totally, 26 species of macrofungi of two phyla, Basidiomycota (23 species, 88%) and Ascomycota (three species, 12%) – were recorded in the greenhouses of the Donetsk Botanical Garden over a 12-year period (2007–2008 and 2015–2024). Seven species – Cyathus striatus, Gymnopilus liquiritiae, Mycena epipterygia, M. leptocephala, Panaeolus fimicola, Peziza varia, and P. vesiculosa – were reported for the first time for the territory of the Donetsk Botanical Garden. The species diversity of macrofungi in greenhouses is relatively low – 10–18% of the species recorded in the anthropogenically transformed regional ecosystems of Donbass. Multiregional cosmopolitans (20 species, 77%) and saprotrophs (17 species, 65%) dominated among fungal species by species composition and trophic spectrum respectively. Two peaks of fruiting body formation were observed: the winter peak – in January and February, and the autumn peak – in October. Macrofungi communities of greenhouses are composed mostly of accidentally introduced species. The incoming of fungi into the greenhouses occurred with organic substrates of local and foreign origin. This may facilitate the introduction and subsequent naturalization of alien fungi in the regional phytocoenoses.