fomitopsis betulina birch pore fungus mushroom in colourful autumn forest

agaricomycetes autumn background bark basidiomycota beautiful betulina birch bracket brown closeup copy detail environment fauna fomitopsidaceae fomitopsis forest fungal fungi fungus green habitat infected log macro mushroom mycelium natural nature outdoors parasite park pest plant polyporales polypore pore rot season space spore summer tree trunk vegetation wild wilderness wildlife wood