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Amanita muscaria var. formosa
Large yellow cap with thick stem. Growing under oak and walnut trees on the side of a private road.
Cap 4.5-16cm across, convex to flat 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. Gills free, crowded, broad to narrow; pale cream. Stem 40-150 x 7-30mm, stuffed, tapering slightly toward the top; white to cream or pale yellow; finely hairy, cottony, or scaly; the creamy-white to yellowish ring near the top of the stem droops and collapses against the stalk, and often disappears. Flesh white, but yellowish beneath cap cuticle. Spores broadly ellipsoid, nonamyloid, 8.7-12.9 x 6.3-7.9lµ. Deposit white. 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. Season June-November (November-February in California). Poisonous.