Amanita muscaria

Common Name: None
Description: cap 4.6-16 cm across, convex to flax with a slightly lined margin; pale yellow to orangy yellow, becoming lighter toward the margin; smooth, slightly sticky when moist, and dotted with flaky patches of whitish volval remnants. Stem 40-150 by 7-30 mm high and wide.
Habitat: singly, in groups, or in fairy rings on the ground in mixed coniferous or deciduous forests. Common in the Northeast. Found widely distributed in North America.
Edible: Poisonous.

Source: Mushrooms of North America by Roger Phillips.