Lactarius pyrogalus (Bull. ex Fr.) Fr. Beissender Milchling, Maró tejelőgomba, mogyoró tejelőgomba, Lactaire ŕ lait brűlant, Fiery Milkcap. Cap 5–10cm across, flattened convex to flat, later broadly funnel-shaped, dingy greyish fawn sometimes with yellowish tinge, not or only faintly concentrically banded, somewhat thin-fleshed, slightly sticky when moist. Stem 40–60 x 7–15mm, cylindrical to slightly swollen in the middle or at the base, whitish or concolorous with cap. Flesh whitish. Gills slightly decurrent, yellowish to flesh-coloured, later cinnamon-ochre. Milk white; taste very hot and acrid; a drop turns orange yellow on a glass slide with KOH. Spore print pale ochre (E–F). Spores broadly elliptic, warts mostly joined by thickish ridges in a fairly well-developed network, 7–8 x 5.5–6.5µ. Habitat under hazel. Season autumn. Frequent. Suspect – avoid. Distribution, America and Europe.