closeup on a lightbrown colored gilled polypore or birch mazegill mushroom, lenzites betulinus

fungus lenzites betulinus mushroom nature plant trametes betulina biology birch mazegill botanical botany closeup gilled polypore macro multicolor gill outdoors single wild wildlife natural lightbrown colored fungal bracket mycology parasite antibiotic antioxidant inedible manycoloured medicative