Nome em latin:Amanita argentea Huijsman 1959 Sinônimos:Species Fungorum 09.12.2015: Amanita argentea var. argentea Huijsman 1959 Amanita mairei var. argentea (Huijsman) Bon & Contu 1985 Amanitopsis argentea (Huijsman) Wasser 1988 Amanitopsis vaginata var. argentea (Huijsman) Iordanov Vanev & Fakirova 1979 Hábito de Crescimento:
Cup: 8-11 cm across, first ovoid, later convex to plane, if old indented, center is not umbonate, smooth, dull, from the margin inward up to ne fifth to the center grooved striate, silver gray with a gray brown component, usually with one or several whitish veil remnants, margin is obtuse, grooved crenate.
Hymenium: lamellae are white, broad, free, edges are finely floccose.
Disputa esponja: white
Esporo: broadly elliptic, 9,8-13,1(16) x 7,2-9,5 μm
Pé: 8-10 x 0,8-1,5 cm, cylindric, toward the base enlarged to little bulbous, first solid, later hollow, fragile, gray brownish mottled on a whitish background, base is enclosed by a membranous white volva.
Carne: white, thick in the center, thin toward the margin, odorless, taste is sharp and irritating, especially after being chewed for a long time.
Habitat: solitary to greagrious in hardwood forests or mixed hardwood conifer forests, on dry calcareous soils, grows from summer to fall.
Comestibilidade: edible if cooked
Notas: similar with Amanita vaginata which has a umbo and globose spores.