Robuta

https://www.fungipedia.org/en/microscopias/josep/polyporus-tuberaster Microscopy of Polyporus tuberaster - Fungipedia On decaying dead wood, particularly of Fagus or Quercus, with a fan-shaped to infundibuliform pileus 3 to 10 cm across, yellowish-brown with darker fibrillose... polyporus tuberastermicroscopy