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''Xanthoconium'' is a genus of bolete fungi in the family Boletaceae. It was circumscribed by mycologist Rolf Singer in 1944, who included ''Boletus affinis'' and what was then known as ''Gyroporus stramineus'' as the type species. These two species were part of the "strange group of species described by Murrill and Snell as white-spored ''Gyropori'', and separated by the latter under the new generic name ''Leucogyroporus''."〔 C.B. Wolfe described three species from the United States in 1987: ''X. chattoogaense'', ''Xanthoconium montaltoense'', and ''X. montanum''.〔 , the nomenclatural database Index Fungorum list seven species in ''Xanthoconium''.〔 The concept of ''Xanthoconium'' has been not fully described using molecular phylogenetic analysis, but it is clearly a distinct genus, apart from ''Boletus''.〔 However, ''Xanthoconium separans'' was found to be more closely related to ''Boletus Sensu stricto'' than to ''Xanthoconium''.〔 ==Species== *''Xanthoconium affine'' (Peck) Singer (1944) *''Xanthoconium chattoogaense'' Wolfe (1987) :Known only from the type locality, along a tributary of the Chattooga River in North Carolina.〔 *''Xanthoconium montaltoense'' Wolfe (1987) :Found in south-central Pennsylvania.〔 *''Xanthoconium montanum'' Wolfe (1987) :Found in Macon County, North Carolina, in Nantahala National Forest.〔 *''Xanthoconium purpureum'' Snell & E.A.Dick (1962) *''Xanthoconium stramineum'' (Murrill) Singer (1944) 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「Xanthoconium」の詳細全文を読む スポンサード リンク
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