close-up of a tree trunk with a bracket fungus and moss lying on a ground

autumn background bark biology botany bracket brown closeup concept conk disease ecology ecosystem edible environment europe flora foment forest fungal fungi fungus green growth hoof iceman moss mushroom mycology nature non parasite park pattern plant polyporaceae polypore season shelf tinder tinderbracket tinderconk tinderfungus tinderpolypore toxic tree trunk winter woodland woods yellow