Amanita muscaria var. alba Pk. Cap 4-21cm across, convex to plane, sometimes with a slightly depressed disc and a faintly lined margin; white to silvery white; smooth, slightly sticky when moist, and dotted with small cottony patches or pointed warts of pale brown volval material which stick quite firmly to the cap and are often arranged in concentric rings. Gills free to adnexed, close, moderately broad; white to cream. Stem 50-140 x 7-20mm, stuffed, tapering slightly toward the top; white, turning yellowish when bruised; finely hairy or cottony above the ring, roughly hairy to scaly below; the pale cream or pale yellow drooping ring near the top of the stem soon collapses; the white oval to ball-shaped basal bulb has a rim of volval material at its top, with flaky, pale brown patches and rings on the lower stem. Flesh white, but yellowish beneath the cap cuticle. Spores broadly ellipsoid, nonamyloid, 7.9-14.1 x6.3-9.4µ. Deposit white. Habitat singly or in small groups on the ground in mixed coniferous and deciduous forests. Occasional. Found scattered throughout northern North America. Season August-September. Poisonous.