Irpicaceae is a family of mostly corticioid and polyporoid white‑rot fungi within the Polyporales, defined by a characteristic monomitic hyphal system, smooth hyaline spores, and broad morphological diversity across genera.

White-rot saprobes on hardwoods and occasionally conifers. Found on logs, stumps, fallen branches, and decorticated wood. Some species prefer moist, shaded forest habitats. Plays a role in lignin degradation and nutrient cycling.