Amanita porphyria

Morphological Features:

Pileus of good size, can exceed 10 cm in diameter, evolving in shape from globose in the initial stage to plano-convex or practically flat upon completion of development. Earthy brown to purplish-brown in color, quite uniform across the entire surface, which is radially fibrillose, and rarely bears remnants of the universal veil; it is usually found without them, though when present they are gray. The margin is not striate and is quite regular.

Lamellae rather crowded, whitish in color, free from the stipe, becoming slightly grayish with age.

Stipe central and cylindrical, generally elongated and bulbous at the base. White in color, but may bear brown scales with gray or purplish tints. Bears a friable or circumscissile volva of unremarkable dimensions, as well as a striate, membranous ring whitish-gray in color, which tends to become appressed with age.

Flesh firm, purplish or lilac in color beneath the cuticle, white elsewhere, with a distinct potato-like odor and a somewhat radish-like taste.

Habitat:

This species prefers acidic soils, although not restricted to a specific forest type. Its most common fruiting season is autumn. It is neither particularly frequent nor abundant in our region.

Observations:

The presence of a ring, the non-striate pileal margin, and its robust habit distinguish it from species of the subgenus Amanitopsis. It is morphologically related to Amanita citrina; however, it cannot be confused with it due to completely different coloration. Do not confuse with the toxic Amanita pantherina, which has a striate pileus with white veil remnants, a white stipe bearing warts, and lacks the potato odor.