Ecological Structure of Discomycetes of the Central Siberian Botanical Garden

A study on the ecological structure of discomycetes in the Central Siberian Botanical Garden, Siberian Branch, Russian Academy of Sciences (CSBG SB RAS), which is a specially protected natural area (SPNA), is presented. The taxonomic diversity of fungi includes 37 species belonging to 30 genera, 16 families, 5 orders, and 3 classes. Saprotrophic discomycetes are categorized into five ecological groups, the largest proportion of which is occupied by lignophilic and phyllophilic species (81%), while the smallest proportion is occupied by herbophilic species (4%). Inoperculate species predominate in all groups. Lignophilic fungi prefer wood of the fourth and fifth stages of decomposition (about 90%); they have not been found on wood of the first and second stages of decomposition. Edaphophilic discomycetes are mainly represented by operculate species from the order of Pezizales (81.8%). The group of herbophilic fungi is represented only by inoperculate species from the order of Helotiales.