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''Boletopsis nothofagi'' is a fungus in the family Bankeraceae. The fungus forms grey fruit bodies that grow in clusters. Like all species of ''Boletopsis'', it has a porous spore-bearing surface on the underside of the cap, but differs from other species of ''Boletopsis'' by having characteristics such as elongated spores and a green discoloration when stained with potassium hydroxide. '' Boletopsis nothofagi'' is endemic to New Zealand and has a mycorrhizal association with red beech (''Nothofagus fusca''). It is unknown when exactly the fungus forms its fruit body, but it has so far been found solely in May, during autumn in the Southern Hemisphere. The first description of ''B. nothofagi'' was published in 2012 by Jerry A. Cooper and Patrick Leonard. DNA studies of the fungus suggest that it is a somewhat basal member of the genus ''Boletopsis''. The fungus is most likely a native species of New Zealand and was present there before the arrival of Europeans. Although it is very rare and possibly threatened, ''B. nothofagi'' has not yet been added to the Red List of Threatened Species. ==Taxonomy== | 3 = }} }} }} }} In 2009, an unknown species of ''Boletopsis'' was discovered in the Orongorongo valley near Wellington, New Zealand. In 2010, the fungus was found again in the same place and also discovered on the South Island. Morphological comparisons and molecular analysis of other species of the genus suggested that the fungus could not be attributed to any known representative of the genus, and so it was described by mycologists Jerry A. Cooper and Patrick Leonard as a new species. The species description of ''Boletopsis nothofagi'' appeared in the journal ''MycoKeys'' in 2012. The two authors chose the epithet ''nothofagi'' based on the characteristic of the fungus as mycorrhizal symbiont of ''Nothofagus fusca''. Swollen hyphae and smooth spores show that ''B. nothofagi'' is a member of the subgenus ''Boletopsis'' in the genus ''Boletopsis''.〔 ''Boletopsis nothofagi'' is a genetically clearly differentiated representative of the genus ''Boletopsis'', which according to the investigations of Cooper and Leonard separated relatively early from the precursor of most other known species. Only a North American species, ''B. leucomelaena'', branches off from their phylogenetic tree even earlier. However, the relationships between many of the species were not fully resolved in the study, so in the future, new species may be described.〔 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「Boletopsis nothofagi」の詳細全文を読む スポンサード リンク
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