Scientific name:Amanita phalloides var. alba Costantin & L.M. Dufour 1895 Synonyms:Species Fungorum 11.12.2015: Amanita phalloides (Vaill. ex Fr.) Link 1833 Habit of Growth:
Mushroom is not protected Trees: Quercus (Oak)d0d0
Cap: 6-16 cm across, whole mushroom arises from a sac-like Volva, which later opens, cup is first hemispherical convex, later flattened surface is oily, shiny and silky, young and moist mushrooms are also sticky, pure white, skin can be easily peeled off, margin is sharp and smooth.
Hymenophore: lamellae are white and tight.
Spore print: white
Spore: subglobose to broadly elliptic, 8-10,5 x 7-8 μm
Stem: 8-20 x 0,8-1,2 cm, cylindrical, base is bulbous and with membranous sac-like Volva, white, and little scaly, with a membranous ring.
Flesh: whitish, thick, in age is odor like ammonia, taste is like potato or honey.
Habitat: solitary or grouped in mixed hardwood forests, under oak, grows from august to november.
Edibility: deadly poisonous
Remarks: similar with Amanita verna, which is also deadly poisonous, cup is also white, but under the ring stem is completely smooth; also similar with some Agaricus, which never have sac-like Volva.