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Pseudoomphalina : ウィキペディア英語版 | Pseudoomphalina
''Pseudoomphalina'' is a genus of fungi in the placed in the family Tricholomataceae for convenience. The genus contains six species that are widespread in northern temperate areas.〔〔 ''Pseudoomphalina'' was circumscribed by Rolf Singer in 1956.〔 ''Psuedoomphalina'' was found to be paraphyletic to ''Neohygrophorus'' in a molecular phylogenetics study and since ''Pseudoomphalina'' is an older name, ''Neohygrophyorus'' was synonymized with it.〔 The type species of ''Neohygrophorus'' was ''Neohygrophorus angelesianus'', now ''Pseudoomphalina angelesiana''.〔〔 In earlier classifications based on anatomy prior to DNA sequence-based classifications, its unusual combination of features led taxonomists to independently create two subgenera in two genera: ''Hygrophorus'' subg. ''Pseudohygrophorus''〔〔 and ''Clitocybe'' subg. ''Mutabiles'';〔〔 the latter based on ''Neohygrophorus angelesianus'' but described under a new species name which is now placed in synonymy, ''Clitocybe mutabilis''. All species of ''Pseudoomphalina'' are united by the presence of clamp-connections in their hyphae, an interwoven gill trama and amyloid spores. ''Pseudoomphalina angelesiana'' possesses grey-violaceous pigments that turn red in alkali solutions and lacks filiform, hyphal sterile elements in its hymenium and stipitipellis.〔 These were features used to distinguish it from ''Pseudoomphalina'' as a genus, but ''Pseudoomphalina umbrinopurpurascens'' possesses these same pigments and the filiform elements of ''Pseudoomphalina''.〔 Molecular phylogenetics studies have also found some former species of ''Pseudoomphalina'' to belong in other genera. ''Pseudoomphalina pachyphylla'' was moved to its own genus, ''Pseudolaccaria'', and ''Pseudoomphalina clusiliformis'' was synonymized with it.〔 ''Pseudoomphalina flavoaurantia'' and ''Pseudoomphalina lignicola'' were found to belong in ''Clitocybula''.〔 Phylogenetically, ''Pseudoomphalina'' is in a tricholomatoid clade but not in the Tricholomataceae.〔〔 ==See also==
*List of Tricholomataceae genera
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「Pseudoomphalina」の詳細全文を読む
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