BRIEF DESCRIPTION: The following description is base on Gilbert (1941) and the notes deposited with the type collection.

The cap of Amanita alliodora is 50 mm wide, fleshy, olivaceous-gray with a pallid margin, convex then planar, with a nonstriate margin. Volva absent from cap.

The gills are crowded, free, white.  Short gills are present.

The stem is 50 - 60 x 6 mm, glabrous, slightly striate above the ring, and white.  The volva is bulbous, white membranous, limbate, with an upper limb 30 mm from the bulb.  The bulbous base is smooth, ellipsoid and not abrupt (based on the original sketch of Raymond Decary), up to 20 mm wide, and marginate.  The ring is membranous, striate on the top, and skirt-like.

The cap smells distinctly of garlic.  Gilbert (1941) reports that indigenous people used the extremely strong odor of garlic of this mushroom to stop headaches, although they considered the mushroom itself to be toxic.

The spores measure 7 - 8 µm and are subglobose and amyloid.  Gilbert's (1941) drawings of spores sometimes do not match the information provided in his descriptions.  In this case, the lengths range from 8.7 - 9.5 µm. No spores are positioned in side view, so no reliable information on the width can be obtained.  Basidia probably lacking clamps because of its assigned section.

Originally described from Madagascar, Africa under thorn-bushes.