Suillus pungens

Suillus pungens, commonly known as the pungent slippery jack or the pungent suillus, is a species of fungus in the genus Suillus. The fruit bodies of the fungus have slimy convex caps up to 14 cm (5+1⁄2 in) wide. The mushroom is characterized by the very distinct color changes that occur in the cap throughout development. Typically, the young cap is whitish, later becoming grayish-olive to reddish-brown or a mottled combination of these colors. The mushroom has a dotted stipe up to 7 cm (2+3⁄4 in) long and 2 cm (3⁄4 in) thick. On the underside on the cap is the spore-bearing tissue, consisting of minute vertically arranged tubes that open as a surface of angular, yellowish pores. The presence of milky droplets on the pore surface of young specimens, especially in humid environments, is a characteristic feature of this species. S. pungens can usually be distinguished from other similar Suillus species by differences in distribution, odor and taste. An ectomycorrhizal species, S. pungens......read more on Wikipedia.