Amanita citrina

Amanita citrina (synonym Amanita mappa), commonly known as the false death cap or citron amanita, is a basidiomycotic mushroom. It grows in silicate soil in the summer and autumn months. It bears a pale yellow or sometimes white cap, with white stem, ring and volva. It is an inedible mushroom due to its toxicity, but is more pertinently often confused for the lethal death cap....read more on Wikipedia.