BRIEF DESCRIPTION: According to Murrill's (1941) original description, the cap of Amanita suballiacea is 30 - 40 mm wide, plano-convex, smooth, white, slightly viscid, with a nonstriate margin.  The flesh is thin, white, and unchanging.

The gills are "just" free and not connected to the stem by a line, crowded, white, unchanging.

The stem is up to 90 x 5 - 10 mm, slightly expanded at the top, solid, white, with a thin membranous patch of limbate volva at the top of the bulb. The ring on the stem is white, membranous, thin, weak, apical or nearly so, and "hanging like a wet skirt."  The stem's bulb is ellipsoid and may be deeply buried in the substrate.

The species is reported to have a strong odor of garlic which persists for some time in dried material.

The spores measure (7.2-) 7.5 - 9.5 (-9.8) × 6.5 - 8.0 (-8.2) µm and are subglobose to broadly ellipsoid to barely ellipsoid (infrequently globose) and weakly amyloid. Clamps are absent at base of basidia.  [Note: The spore dimensions provided by Jenkins (1986) are apparently a typographical error.  Curiously, Murrill also misdescribed the spores in his original description -- as globose and 6 µm in diameter.  The dimensions given above are from my study of the type.]

The species was originally described from Florida, USA and is reported to have been associated with liveoak and loblolly pine.  The species may occur in the states along the US coast of the Gulf of Mexico as well as in states overlapping the Mississippi River valley.

Among other amanitas of the Atlantic Coastal Plain of North America, the odor of garlic is also present in A. alliacea (Murrill) Murrill -- a white species with a small limbate volva presently assigned to Amanita sect. Lepidella.