The bulbous stipe base is covered with a membranous sac-like volva. The crowded free gills are white, as is the stipe and volva. The ruptured peridium remains as a loose volva at the base of the stalk. The stipe is white and has a sack-like volva at the base. "Volvariella speciosa" has pink spores and no ring or volva. Another common name is "strangulated amanita", referring to the tightly clasping volva. For example, the peridium of the sub-family Phalloideae is called a volva. This mushroom's lamellae is free and white, and the volva is bag-like and large. This fungus, like all amanitas, has a volva. They have prominent veil remnants (two rings, or a ring and a volva). The egg case remains at the base of the stalk as a volva. The remains of the "egg" forms a volva around the base of the stalk. It differs from the death cap by its fragile volva and tendency to bruise brown. The fruit body of "Rhodotus" has a cap, and stem without a ring or volva. The volva is a distinct white bag, not broken into scales.