Background During taxonomic and phylogenetic studies of fungi on pteridophytes in Thailand, Monilochaetes pteridophytophila sp. nov. was collected from the frond stalks of a tree fern (Alsophila costularis, Cyatheaceae). The new species is introduced, based on evidence from morphology and phylogenetic analyses of a concatenated dataset of LSU, ITS, SSU and RPB2 sequences. New information Monilochaetes pteridophytophila differs from extant species of Monilochaetes in having darker conidiophores with fewer septae (1–4-septate). Monilochaetes pteridophytophila forms a distinct clade, basal from other species of Monilochaetes in Australiascaceae. A detailed description and illustrations of the new species are provided. We also provided a synopsis of accepted species of Monilochaetes.

中文翻译：

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Monilochaetes pteridophytophila (Australiascaceae, Glomerellales)，一种来自树蕨的新真菌

背景在泰国蕨类植物真菌的分类学和系统发育研究中，Monilochaetes pteridophytophila sp。十一月 从树蕨（Alsophila costularis，Cyatheaceae）的叶茎中收集。基于来自 LSU、ITS、SSU 和 RPB2 序列的串联数据集的形态学和系统发育分析的证据，引入了新物种。新信息 Monilochaetes pteridophytophila 与现存的 Monilochaetes 物种的不同之处在于，分生孢子梗颜色较深，隔板较少（1-4 隔板）。Monilochaetes pteridophytophila 形成了一个独特的进化枝，与澳大利亚科的其他 Monilochaetes 物种的基部不同。提供了新物种的详细描述和插图。我们还提供了公认的单毛纲动物的概要。