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The top surface of the cap shows typical concentric zones of different colours. Flesh 1–3 mm thick, leathery texture. Cap with rust-brown or darker brown, sometimes blackish zones, Older specimens, such as the one pictured at right, can have zones with green algae growing on them, thus appearing green. Commonly grows in tiled layers. Cap flat, up to 8 x 5 x 0.5-1 centimeters, often triangular or round, with zones of fine hairs. Pore surface whitish to light brown, pores round and with age twisted and labyrinthine. 2-5 pores per millimeter May be eaten by caterpillars of the fungus moth Nemaxera betulinella and by maggots of the Platypezid fly Polyporivora picta.
Saprobic on the deadwood of hardwoods, or rarely on the wood of conifers; annual; causing a white rot of the sapwood; growing in dense, overlapping clusters or rosettes on logs and stumps; year-round; very widely distributed
Spotted in river Homem félinhos beach in a mix forest