| Generic short diagnoses:
A big and heavy, grey to greyish brown, clustered polypore, growing near the base of old trees, mainly oak, with skeletal hyphae in the context. |
Species example: |

Grifola frondosa - DK: tueporesvamp UK: Hen of the Woods - pore surface |
Photo and © Jens H. Petersen Denmark, JHP-99.534 |
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