Pileus about 10 cm. broad, convex to expanded, dry, white, disk avellaneous-isaelline, decorated with small, flat, volval fragments. Context white, unchanging; odor and taste not characteristic, without a trace of chloride of lime.

Lamellae rounded behind, white, changing to dark-isabelline on drying, broad, close.

Stipe 4-9 cm. long, 15-25 mm. thick, white, fibrillose, apex glabrous, equal or slightly tapering upward from an enormous bulb, not at all radicate. Annulus ample, apical, white, entire, persistent, simple or duplex at the margin. Volva firm, cup-shaped, evenly truncate at the top, white, rarely purplish below, 3 cm. or more wide and high.

Spores 10-13 (14) x 5-7 microns, ellipsoid, at first reddish-brown in Melzer's reagent, tinged blue after two hours.

Habit, habitat, and distribution. - On soil, under Japanese shining privet hedge, laurel-oak, and slash pine, Florida, August.

Observations. - The description of the microscopic characters above is based on a study of the type. The spores are peculiar in that they promptly become reddish-brown in Melzer's reagent, finally (after 2 hours) are tinged blue. Gilbert places it in Aspidella but its saccata volva relates it more closely to Amanitina.

This species is destinguished from A. abrupta by the absence of pointed warts, its filbrillose stipe, and even margin. The bulbs of the two species are similar.