BRIEF DESCRIPTION: This description is largely taken from that of Bas (1969).

The cap of Amanita parva is roughly 30 mm wide, convex to plano-convex, white, subviscid, with a nonsulcate margin and (at least sometimes) a projecting sterile rim. The cap is scattered with some very thin, poorly delimited, white, crust-like patches or only some subpulverulent remnants of volva at the center.

The gills are rather crowded, adnate or just reaching the stem, relatively broad, and pallid. The short gills are truncate, obliquely truncate, rounded, or subattenuate.

The stem is about 50 - 60 x 5 mm, subcylindrical, with a narrow, submembranous volval rim on the top of the bulb.

The spores measure (9.2-) 11.2 - 14.0 (-17.1) x (4.7-) 4.9 - 6.0 (-8.6) µm and are amyloid and elongate to cylindric. Clamps are present at bases of basidia.  (The clamps are rather thin-walled and can be difficult to see.  Definitely use a cell wall stain, and look for the "wedge-" or "V-"shaped lines that mark the interfaces of the clamp to the side of a basidium and to the cell from which the basidium arises.)<

The species was originally described from Florida in association with oak.  It has recently been recollected near Tallahassee. In recent years a solitary specimen of A. parva was found in the sandy pine-oak barrens of New Jersey.