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Baorangia bicolor
''Baorangia bicolor'', also known as the two-colored bolete or red and yellow bolete after its two-tone coloring scheme of red and yellow, is an edible fungus in the genus ''Baorangia''. It inhabits most of eastern North America, primarily east of the Rocky Mountains and in season during the summer and fall months but can be found across the globe in China and Nepal. Its fruit body, the mushroom, is classed as medium or large in size, which helps distinguish it from the many similar appearing species that have a smaller stature. A deep blue/indigo bruising of the pore surface and a less dramatic bruising coloration change in the stem over a period of several minutes are identifying characteristics that distinguish it from the similar poisonous species ''Boletus sensibilis''. There are two variations of this species, variety ''borealis'' and variety ''subreticulatus'', and several other similar species of fungi are not poisonous.
== Taxonomy and naming ==
''Baorangia bicolor'' was originally named in 1807 by the Italian botanist Giuseppe Raddi. American mycologist Charles Horton Peck named a species collected in Sandlake, New York, in 1870, ''Boletus bicolor''. Although this naming is considered illegitimate due to (article 53.1 ) of the International Code of Botanical Nomenclature,〔 Peck is still given as the authority in the Bessette ''et al''. (2000) monograph of North American boletes. ''Boletus bicolor'' (Raddi) is not a synonym of "Boletus bicolor" Peck.〔〔(【引用サイトリンク】url=http://www.mycobank.org/BioloMICS.aspx?Table=Mycobank&Rec=236233&Fields=All )〕 Peck's ''Boletus bicolor'' describes the Eastern North American species that is the familiar "two-colored bolete", while Raddi's ''Boletus bicolor'' describes a separate European species that is lost to science. This taxonomic conflict has yet to be resolved. In 1909 a species found in Singapore was named ''Boletus bicolor'' by George Edward Massee; this naming is illegitimate and is synonymous with ''Boletochaete bicolor'' according to Singer.〔〔(【引用サイトリンク】url=http://www.mycobank.org/MycoTaxo.aspx?Link=T&Rec=206292 )〕 Molecular studies found that ''Boletus bicolor'' was not closely related to the type species of ''Boletus'', ''Boletus edulis'', and in 2015 Alfredo Vizzini transferred ''Boletus bicolor'' to the genus ''Baorangia''.〔〔〔 The original botanical name for this two-colored bolete was derived from the Latin words ''bōlētus'', meaning "mushroom", and ''bicolor'', meaning "having two colors."
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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