This is a recognisable Polypore. Occasionally may be confused with the side attached Small Pore Fan (Microporus affinis) see Guide. Pores are so small some might think this was a Leather.
Sources and Credits
(c) tansh91, some rights reserved (CC BY-NC), uploaded by tansh91
(c) sea-kangaroo, some rights reserved (CC BY-NC-ND), uploaded by sea-kangaroo
(c) Christian Schwarz, some rights reserved (CC BY-NC), uploaded by Christian Schwarz
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