BRIEF DESCRIPTION: The following description is based on Beeli (1935) and Gilbert (1940).

The cap of Amanita strophiolata is 60 mm wide, plano-convex, umbonate, dirty white, baring no volval remnants, with a slightly striated margin. The flesh is very thin (perhaps membranous from the cap's edge half-way to the center) and white.

Gills are free, white, and rounded at the margin.

Its stem is 110 - 120 × 4 - 5 mm, cylindric, totally elongating, narrow, stuffed, smooth, white (pinkish in Madame Goossens watercolor), and bears a bulb at its based that is twice the width of the stipe or more. The ring is superior, membranous, white, and at least at first pulled upward with a form of a funnel. The volva is membranous and white, with a free limb.

The spores measure 10 - 11 × 6 - 7 µm and are ellipsoid to elongate and amyloid.  Gilbert (1940) provides spores drawings from which the measurements are 8.9 - 10.6 × 5.3 - 6.5 (-6.8) µm and are ellipsoid to elongate, infrequently broadly ellipsoid or cylindric and amyloid.

The present species was originally described from the Republic of Congo in swampy forests. Amanita strophiolata var. bingensis was described from a rather large collection made in association with Gilbertiodendron.

Beeli says that A. strophiolata has a habit suggesting a species of Lepiota in the broadest sense.

Gilbert observed that Beeli's argument for separation of the two varieties was not supported by the material of the type collections. In fact, while Beeli separated the varieties based on spore size, the spores of the two taxa are essentially identical as shown by Gilbert's (1940) spore drawings. My examination of spores from one specimen in the type collection of var. bingensis yielded the following data: [59/1/1] (6.5-) 6.8 - 9.3 (-10.3) × (4.0-) 4.6 - 6.0 (-6.5) µm, (L = 7.9 µm; W = 5.3 µm; Q = (1.23-) 1.35 - 1.68 (-1.82); Q = 1.49).