Russula rosacea

Common Name: Rosy Russula
Description: Cap 5-10 cm across, convex then flattened or depressed; blood to cherry red or rose, often streaked or spotted with pale pink or cream to white areas or entirely pale cream-pink. Stem 40-100 by 10-30 mm high and wide.
Habitat: under pine. Found widely distributed in North America.
Edible: Not edible.

Source: Mushrooms of North America by Roger Phillips.