hexagonal-pored polypore (Neofavolus alveolaris)

Neofavolus alveolaris is a species of polypore fungus in the family Polyporaceae. It is widely distributed in the temperate areas of the Northern Hemisphere. Its kidney- or fan-shaped fruit bodies measure 1โ€“8ย cm (0.4โ€“3.1ย in) in diameter. Initially reddish, they become cream to white when dry. The pores on the cap underside are angular to hexagonal and relatively large (0.5โ€“3ย mm diameter). The fungus causes a white rot in hardwoods.