A dark green, pock-marked milk cap of eastern North American oak woods. Darker green spots are often arranged in rings on the outer cap, and the stem is pitted. The white latex sometimes turns greenish. The species is variable and may include more than one taxon.
Eastern North America, east of the Great Plains, south at least to Costa Rica.
Characteristics
Cap: 3-15 cm, convex becoming planoconvex with a central depression; dry or sticky when wet, pock-marked and rugged; shades of green, often with darker green concentric spots over the outer half; margin inrolled. Gills: attached or slightly decurrent, close, pale pinkish, often bruising greenish to brownish; edges often green-tinted with age. Stem: 2-8 cm long, 1-2.5 cm thick, equal or tapering, slimy when fresh, with many potholes, colored like the cap, becoming hollow. Flesh: whitish to pale pinkish. Latex: fairly copious, creamy white, sometimes turning greenish. Odor: not distinctive. Taste: reported as acrid, but sometimes mild. KOH: dark purple-magenta on the cap. Spore print: cream. Spores: 6-9 x 5.5-6.5 µm, subglobose to broadly ellipsoid, with amyloid warts and ridges forming partial reticula.
