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''Amanita verna'', commonly known as the fool's mushroom, Destroying angel or the mushroom fool, is a deadly poisonous basidiomycete fungus, one of many in the genus ''Amanita''. Occurring in Europe in spring, ''A. verna'' associates with various deciduous and coniferous trees. The large fruiting bodies (''i.e.'', the mushrooms) appear in summer and autumn; the caps, stipes and gills are all white in colour. Initially described by the French botanist Jean Baptiste François Pierre Bulliard, the fool's mushroom's specific epithet ''verna'' is derived from its springtime fruiting habit.〔(【引用サイトリンク】title=''Amanita verna'' )〕 ==Description== The fool's mushroom (''Amanita verna''), also known as the spring destroying angel or death angel, is a close relative of Amanita phalloides, the death cap, and a member of the mushroom genus ''Amanita''. ''Amanita verna'', like its close relative, belongs to the subfamily Phalloideae. The fool's mushroom is pure white, all the way to the gills and the stem.〔(【引用サイトリンク】title=This month's fungus is the death angel, Amanita bisporigera, Amanita virosa, and Amanita verna )〕 This fungus, like all amanitas, has a volva. The fool's mushroom's cap is wide, and is about the same height. This mushroom's lamellae is free and white, and the volva is bag-like and large. Its annulus is white and membranous, and ''A. verna'' also does not react with potassium hydroxide solution, unlike its relative ''Amanita virosa''. The mushroom's spores are smooth and elliptical. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Amanita verna」の詳細全文を読む スポンサード リンク
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