turkey tail trametes versicolor fungus on a tree.

fungus nature fungi mushroom parasite white isolated polypore trametes versicolor wild brown tree background coriolus polyporus abstract border branches closeup dead decay decomposer grey leaf lignin macro model mycelium old polyporacaea sporophore stone texture warm wet wood antioxidants bracket cancer energy immuneboosting properties mushrooms polysaccharide krestin peptide forest woods trunk bark