Eating notes: Poisonous if eaten raw or under-cooked. May cause gastric upsets in some people even if cooked.
Preserving: Can be dried.
Cap: 7-13cm Walnut or dark-buff. Initially heavily-convex and slightly downy, becoming smooth when expanded.
Stem: Yellow near the cap becoming orange-red near the base. Covered in a red network.
Tubes: Yellow or yellow-green.
Pores: Red near the stem becoming more yellow towards the edge of the cap.
Spores: Walnut brown
Flesh: Yellow, rapidly bruising blue-black.
Habitat: With broad-leaved trees