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''Hydnum'' is a genus of fungi in the Hydnaceae family. They are notable for their unusual spore-bearing structures of teeth rather than gills. The best known are the edible species ''Hydnum repandum'' and ''H. rufescens''. The word is derived from ''(h)udnon''/ύδνον, an Ancient Greek word for truffle. The white or buff ''Hydnum repandum'' has a spore scatterer of still another shape. The smooth cap grows as wide as 8 inches across. The stem is off-center and is less than 2 inches long. ''Hydnum'' has many brittle, white teeth from which the spores drop. The mushrooms of the ''Hydnum'' group grow both on ground and on wood. Some species have teeth which hang from ascending branches, while other species have teeth which project downwards from the undersurfaces of dead wood. Most ''Hydnum'' are safe to eat. ==Selected species== According to the ''Dictionary of the Fungi'' (10th edition, 2008), the genus contains 120 species.〔 *''Hydnum ambustum'' *''Hydnum dispersum'' *''Hydnum durieui'' *''Hydnum elatum'' *''Hydnum ellipsosporum'' *''Hydnum investiens'' *''Hydnum molluscum'' *''Hydnum papyraceum'' *''Hydnum repandum'' *''Hydnum rufescens'' *''Hydnum umbilicatum'' 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「Hydnum」の詳細全文を読む スポンサード リンク
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