Suillus luteus (L) Roussel
Order: Boletales - Family: Suillaceae
The slippery Jack is a most widespread summer and autumn fungus. It is a species of the Suillus genus. The very slimy (when wet) cap surface is the origin of its common name.
It is most often seen in large numbers beside paths in
pine woods, and it is one of the boletes that has a distinctive
ring, white at first but discoloring with age, usually dark chestnut
The stem is first pale straw-yellow, darkening with a dot pattern above the ring and with an irregular covering of brown fibers 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.