Bitter Bolete Tylopilus felleus (Bull.) P. Karst. (illustrated 50% life size) Cap 6–12cm across; fulvous to walnut-brown; slightly downy at first, later smooth. Stem 70–100×20–30mm, 60mm at base; creamy ochre, lighter at apex, covered in a coarse, walnut-brown network. Flesh white to cream, clay-pink beneath cap cuticle; soft; taste very bitter, like bile, smell slightly unpleasant. Tubes slightly salmon or coral. Pores colouring similar to tubes, bruising brownish. Spores 11–15×4–5¼, fusiform. Spore print clay-pink to vinaceous. Habitat in coniferous and deciduous woodland; late summer to autumn. Occasional. Not edible due to bitter taste.