Gyroporus castaneus - Hat diameter 25 to 120 mm. First chestnut, later cinnamon-brown, with age straw to ocher, young hemispherical, later convex, flattened, with age sometimes concave, thick-grained; fibrous surface, then smooth, often cracked in dry time; sharp edge.

Tubes up to 8 mm long, first white, then cream, finally yellow, near the stem shorter, adnate or almost free, sinuate.

Round pores, small to medium, similarly colored like tubes.

Stem 30 to 80 mm high, 10 to 30 mm thick, cylindrical to mottled, malformed, with irregular hollows, as if gnarled, suede-felt, first full, almost wadded filled, empty or ventric adult in the adult stage, hat color or slightly paler.

Flesh in youth, hard, meaty, in the adult stage, fragile, white, unchanging; with a poor taste and smell.

Occurrence: From lowlands to submontane areas, in deciduous and coniferous forests, especially under oaks on acidic sandy soils. He likes warmer regions. Fruiting bodies from July to October.

Value: edible.