Slippery Jack Suillus luteus (L.) Roussel (illustrated 50% life size) Cap 5–12cm across; chestnut to sepia, covered in brown gluten, becoming more rust-coloured with age; shiny on drying. Stem 50–100×20–30mm; pale straw-coloured at apex, rapidly discoloured with darkening, glandular dots, white below, becoming vinaceous-brown with age; large white to cream ring darkens to sepia. Flesh white, often vinaceous at base of stem; taste and smell not distinctive. Tubes lemon-yellow to straw-colour. Pores round; colouring similar to tubes, becoming flushed sienna. Spores 7–10×3–3.5¼, subfusiform to elongate-elliptical. Spore print clay to ochraceous. Habitat with conifers, usually Scots pine; autumn. Common. Edible.
