Amanita magnivelaris, commonly known as the great felt skirt destroying angel or the great feltskirt destroying angel amanita, is a highly toxic basidiomycete fungus, one of many in the genus Amanita. Originally described from Ithaca, New York, by Charles Horton Peck, it is found in New York state and southeastern Canada.

Like most other Amanita mushrooms, the great felt skirt destroying angel is hepatotoxic and can cause serious liver damage which can be fatal.

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