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Words near each other
・ Xerochloa
・ Xerochloa imberbis
・ Xerochlora
・ Xerochore
・ Xerochrysum
・ Xerochrysum bicolor
・ Xerochrysum bracteatum
・ Xerochrysum papillosum
・ Xerochrysum subundulatum
・ Xerochrysum viscosum
・ Xerociris
・ Xerocladia
・ Xerocladia viridiramis
・ Xerocnephasia
・ Xerocole
Xerocomellus
・ Xerocomellus chrysenteron
・ Xerocomellus pruinatus
・ Xerocomellus rubellus
・ Xerocomellus zelleri
・ Xerocomus
・ Xerocomus belizensis
・ Xerocomus illudens
・ Xerocomus olivaceus
・ Xerocomus silwoodensis
・ Xerocomus subtomentosus
・ Xerocoprinus
・ Xerocrassa
・ Xerocrassa amphiconus
・ Xerocrassa arturi


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Xerocomellus : ウィキペディア英語版
Xerocomellus

''Xerocomellus'' is a genus of fungi in the family Boletaceae. The genus, as it was described in 2008, contained 12 species.〔 However ''X. rubellus'' and ''X. engelii'' were transferred to the new genus ''Hortiboletus'' and ''X. armeniacus'' was transferred to the new genus ''Rheubarbariboletus'' in 2015.〔〔 Molecular analysis supports the distinction of ''Xerocomellus'' species from ''Boletus'' and ''Xerocomus'', within which these species were formerly contained. ''Xerocomellus'' in fact is only distantly related to ''Xerocomus'' and is most closely related to ''Tylopilus'', ''Boletus'' sensu stricto, ''Porphyrellus'', ''Strobilomyces'', and ''Xanthoconium''.〔
==Taxonomy==
Members of the genus had been classified either in the genus ''Boletus'' or ''Xerocomus'' until Czech mycologist Josef Šutara examined a number of species and concluded that there was a defined group containing ''X. chrysenteron'', ''X. armeniacus'' and relatives that are distinct morphologically from the group containing ''Xerocomus subtomentosus'' and related species. He deferred fully delimiting the genus until genetic work confirmed their distinctness.〔 Previously, Manfred Binder had coined the term ''Paraxerocomus'' for the group but this was not officially published.〔
The type species is the red-cracked bolete (''Xerocomellus chrysenteron'').〔
Genetic analysis published in 2013 showed that ''X. chrysenteron'' and ''X. zelleri'' form a ''Xerocomellus'' clade within a larger group informally called "anaxoboletus" in the Boletineae. It appears to have affinities with what was then known informally as the "rubellus clade", which containined the species ''X. rubellus'' and ''X. armeniacus'', now known as ''Hortiboletus rubellus'' and ''Rheubarbariboletus armeniacus'' respectively.〔 The same study found ''Xerocomellus'' to be more distantly to a 'badius' clade containing ''Boletus badius'', now known as ''Imleria badia'', and relatives.〔 Other clades in the group include the porcini (true ''Boletus'' species) and ''Strobilomyces'' clades, species currently designated ''Xerocomus'' (the species are not true ''Xerocomus'' species), and smaller genera whose relationships are unclear.〔

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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