| Generic short diagnoses:
Tough to hard, resupinate or pileate, annual or perennial, white rotting polypores with ± globose spores, monomitic hyphal system, clampless hyphae and different types of cystidia. |
Species example: |

Rigidoporus ulmarius |
Photo and © Jens H. Petersen England, JHP-99.173 |
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