BRIEF DESCRIPTION: The cap of A. boudieri is about 40 - `10 mm wide, hemispherical to convex when young, becoming plano-convex with a slightly depressed center with age, white to whitish, sometimes becoming yellowish, dry, unpolished, appendiculate, with a nonsulcate margin.  The cap probably subviscid to shiny between remnants of volva at the margin.  The cap is at first completely covered with adnate, subtomentose-subfelted to pulverulent-subtomentose, white, volval layer, sometimes decorated with small, pustular warts; later, the covering layer more or less breaks up into rather vague, large, irregular, crust-like to small, rounded, wart-like subtomentose-subfelted patches.

The gills are rather crowded, subadnate to free, moderately broad, and white to cream or yellowish.  The short gills are rounded-truncate.

The stem is about 50 - 150 x 5 - 20 mm, cylindrical or attenuate upward, solid, white, with one to three vague circles of usually indistinct, flocculose-felted warts.

The spores measure 10.5 - 14 (-16.0) x (4.5-) 5.0 - 6.5 (-7.5) µm and are amyloid and elongate or elongate-obovoid to cylindical.  Clamps are present at bases of basidia.

This species is known from the Mediterranean region.

See discussions under A. polypyramis (B. & C.) Sacc. and A. pulverulenta Beeli.  At first, Bas (1969) accepted the name A. baccata for this species; however, the type of the latter species is a plate that resembles both A. boudieri and A. gracilior Bas ex Bas & Honrubia (a taxon lacking clamps on its basidia and assignable to Bas' stirps Virgineoides).