Hygrophorus miniatus

Common Name: None.
Description: Cap 2-4 cm broad, broadly convex, dry, smooth, without hairs, brilliant scarlet, fading only in age, margin incurved at first and striate when moist. Stalk 3-5 cm long, 3-4 mm thick.
Habitat: Grows in groups, usually in moss or wood debris in hardwoods or mixed woods. Widely distributed.
Edible: Nonpoisonous.

Source: Mushrooms of North America by Orson K. Miller, Jr.