Slippery jack

When wet the caps of this species are slimy. In hot sunny weather they dry to a smooth semi-matt finish. Usually dark chestnut brown, but occasionally quite a lot lighter, the caps of Suillus luteus grow to between 5 and 10 cm in diameter. Beneath the cap, a white veil covers the lemon yellow pores of this bolete. The veil tears to leave an irregular ring on the stem and often pieces of veil hanging from the cap margin. At first lemon yellow, the medium-sized round pores darken to a sienna-yellow with age. 2 to 3cm in diameter and 5 to 10cm tall, the stem is pale straw-yellow at first, darkening with a dot pattern above the ring and with an irregular covering of brown longitudinal fibres near the base. The large, floppy stem ring is white initially but usually develops a purplish tinge to its lower surface as the fruitbody matures.