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''Volvopluteus michiganensis'' is a species of mushroom in the family Pluteaceae. It was originally described under the name ''Pluteus michiganensis'' but molecular studies have placed it in the ''Volvopluteus'', a genus described in 2011. The cap of this mushroom is about in diameter, gray, and has a cracked margin that is sticky when fresh. The gills start out as white but they soon turn pink. The stipe is white and has a volva at the base. Microscopical features and DNA sequence data are of great importance for separating this taxon from related species. ''V. michiganensis'' is a saprotrophic fungus that was originally described as growing on sawdust. It has only been reported from Michigan (USA) and the Dominican Republic. ==Taxonomy== }} }} |caption=Phylogenetic relationships between ''Volvopluteus michiganensis'' and related species as inferred from ITS data.〔 }} This species was originally described by American mycologist Alexander H. Smith in 1934 as ''Pluteus michiganensis'', based on collections made in Ann Arbor in October 1932.〔 In the original description there is no mention of a volva at the base of the stipe, one of the morphological characters separating ''Pluteus'' from ''Volvopluteus''.〔 Smith did mention that "the large spores are unusual for the genus ''Pluteus''".〔 The species then disappeared from the mycological literature of the 20th century and Smith did not include his own species when he revised the type collections of North American ''Pluteus''.〔 Morphological revision of the type and DNA sequence data (based on Internal transcribed spacer sequences) obtained from the collection confirmed that this taxon belongs in the genus ''Volvopluteus'', and that it is a separate species from all the other members of that genus.〔〔 The epithet ''michiganensis'' refers to the state of Michigan, where the fungus was originally described.〔 The original holotype specimens of this species are preserved at the University of Michigan Herbarium.〔 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「Volvopluteus michiganensis」の詳細全文を読む スポンサード リンク
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