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Edible mushroom Pleurotus pulmonarius

The edible mushroom Pleurotus pulmonarius (commonly known as the Indian Oyster, Italian Oyster, Phoenix Mushroom, or the Lung Oyster) can be mistaken for the poisonous Pleurocybella porrigens mushroom. (Photograph by Jörg Hempel on July 6, 2010. Creative Commons Attribution-Share Alike 3.0 Germany license.)