Polyporaceae

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Polyporaceae (order Aphyllophorales) A family of fungi in which the hymenium typically lines tubes that open to the exterior by pores. The fruit body may be crust-like, bracket-like, or hoof-shaped, and may be annual or perennial. They grow on wood and are mainly saprotrophic, but some are parasitic. The family includes some important tree pathogens and agents of timber decay.