Amanita magnivelaris, commonly known as the great felt skirt destroying angel, is a highly toxic basidiomycete fungus, one of many in the genus Amanita. Originally described from Ithaca, New York, by Charles Horton Peck, it occurs in southeastern Canada, Wisconsin, New York, and Michigan.
A. magnivelaris is completely white, with its pileus spanning 4-13 centimeters in diameter, and it's stipe ranging 7-18 centimeters long. The annulus is thick and felted, while its base is bulbous and encased in a volva.
Containing amatoxins, A. magnivelaris is highly hepatotoxic, and may be deadly if consumed.