A new classification of the taxa formerly ascribed to Biannulariaceae (≡ Catathelasmataceae), viz. Catathelasma (type), Callistosporium, Pleurocollybia, Macrocybe, Pseudolaccaria, Guyanagarika and Anupama is here proposed. Phylogenetic inference of the Tricholomatineae based on the analysis of a combined dataset of nuclear genes including ITS, 18S and 28S rDNA, tef1 and rpb2 data supports significantly a monophyletic origin of the aforementioned genera with the exception of Catathelasma, which is significantly related with Bonomyces and Cleistocybe. Biannulariaceae is therefore emended to include the clade formed by Catathelasma, Bonomyces and Cleistocybe. Consequently, the new family Callistosporiaceae is proposed to name the clade containing Callistosporium (= Pleurocollybia) and related genera. Species of Callistosporium with distant lamellae, long hygrophoroid basidia and large amygdaliform spores are accommodated in the new genus Xerophorus. Finally, the new species Callistosporium pseudofelleum and Macrocybe sardoa are described, Clitocybe hesleri and C. fellea are combined into Callistosporium and Pseudolaccaria, respectively, and Callistosporium olivascens var. donadinii is upgraded to species rank and combined into Xerophorus.

中文翻译：

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深入了解口蘑科（Agaricales，Agaricomycetes）：Biannulariaceae和Callistosporium的新组合，Callistosporiaceae家族。十一月，Xerophorus统计。十一月，并将萤光紫檀并入Callistosporium

一种新的分类单位分类，以前归因于Biannulariaceae（≡Catathelasmataceae），即。这里提出了Catathelasma（类型），Callistosporium，Pleurocollybia，Macrocybe，Pseudolaccaria，Guyanagarika和Anupama。基于对包括ITS，18S和28S rDNA，tef 1和rpb 2数据在内的核基因组合数据集的分析，对口蘑的系统发生学推断显着支持了上述属的单系起源，但Catathelasma除外，这与Bonomyces和Cleistocybe密切相关。因此，双环纲科被修改为包括由Catathelasma，Bonomyces和Cleistocybe形成的进化枝。因此，提出了新的Callistosporiaceae科来命名包含Callistosporium（= Pleurocollybia）和相关属的进化枝。新种Xerophorus可以容纳具有较远的薄片，长的潮菌型基底芽孢和大型的扁桃体孢子的Callistosporium种类。最后，新种Callistosporium pseudofelleum和描述了Macrocybe sardoa，将Clitocybe hesleri和C. fallea分别合并为Callistosporium和Pseudolaccaria，以及Callistosporium olivascens var。将donadinii升级到物种等级并合并为Xerophorus。