Amanita magniverrucata Thiers & Ammirati Cap 4-13cm across, almost round becoming broadly convex then flat with a strong incurved margin that becomes flatter with age and is hung with white, cottony veil fragments; white, creamy to yellowish buff or darker when handled; dry or slightly sticky when moist, covered with large, pyramidical warts that become flattened in age. adnate, crowded; white or creamy, lightly powdered. Stem 70-115 x 10-25mm, solid, tapering slightly upward, with a rooting Gills adnexed to basal bulb; white with brownish-yellowish stains; hairy to scaly below, smooth or lined above the ring; white, membranous partial veil forms fragile, skirt-like ring on the upper stem; volva leaves concentric rows of scales and warts at top of bulb and on lower stem, which sometimes disappear in age. Flesh thick, firm; white. Odor disagreeable in age. Spores ellipsoid to subglobose, smooth, amyloid, 8.1-12.7 x 5.5-8.3µ. Deposit white. Habitat singly or in groups on the ground under oak and pine. Frequent. Found in coastal forests of California. Season October-April. Edibility not known - avoid; possibly deadly poisonous. Photographed by Greg Wright.