Sarcomyxa serotina or  Panellus serotinus (GB=  Olive Oysterling, Syn. Late fall Oyster, D= Gelbstieliger Muschelseitling, F= Pleurote tardif, NL= Groene schelpzwam) white to yellow spores and causes white rot, just beside the fluweelpootjes at a Chestnut tree Arnhem
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