mycena meliigena - small saprophytic mushroom growing on the bark of an old oak tree, odessa

mycena meliigena mauve bonnet mushroom fungi saprophytic small tiny purple colored cap forest woodland nature macro closeup decay wood oak tree old autumn season ecology biodiversity species identification mycenaceae agaricomycetes basidiomycota agaricales spore gills habitat environment wild ukraine odessa ecosystem mycology botany biology science research