Lactarius repraesentaneus

Lactarius repraesentaneus, commonly known as the purple-staining bearded milkcap, the northern bearded milkcap, or the northern milkcap, is a species of fungus in the family Russulaceae. Distinguishing features of its fruit body include the large orange-yellow cap up to 18 cm (7.1 in) wide, cream to pale yellow gills, and a yellow coarsely-pitted stem that is up to 12 cm (4.7 in) long and 3 cm (1.2 in) thick. Cut fruit bodies ooze a white latex that will stain mushroom tissue lilac to purple. The species has a northerly distribution, being found in temperate regions of North America and Europe. It is associated with spruce trees. The mushroom is poisonous, its consumption causing stomach aches. It has antibiotic activity against Staphylococcus aureus and contains chemicals that can modify the growth of plants. ...read more on Wikipedia.