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<p><i>Hermatomyces</i> species are widely distributed in terrestrial and freshwater habitats worldwide. The most distinctive features of the asexual morph of <i>Hermatomyces</i> are sporodochial conidiomata, short micronematous conidiophores and dimorphic conidia (cylindrical and lenticular). During a survey of fungal diversity on <i>Fagales</i> litter in China, three species were collected from dead branches of <i>Alnus</i> sp. (<i>Betulaceae</i>), <i>Lithocarpus xylocarpus</i> (<i>Fagaceae</i>) and <i>Lithocarpus</i> sp. (<i>Fagaceae</i>). Based on morphological characterization and phylogenetic analyses of combined LSU, ITS, <i>TEF1α</i>, and <i>RPB2</i> sequences, two new species (<i>H. nujiangensis</i> and <i>H. yunnanensis</i>) and one newly collected species (<i>H. hainanensis</i>) were described. <i>Hermatomyces nujiangensis</i> and <i>H. yunnanensis</i> formed distinct clades in the phylogenetic tree. Both species only have lenticular conidia, and the characteristics of conidiophores and conidia distinguish them from other species of <i>Hermatomyces</i>. This study examines and compares them with morphologically similar species and phylogenetically related taxa, presenting detailed illustrations and detailed descriptions of the isolates along with molecular data.</p>

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Two novel species of Hermatomyces (Dothideomycetes) from Fagales in China

  • 期刊论文

  • 发表日期：

    2025年11月17日

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  • Yan-Yan Yang,
  • Tai-Shun Li,
  • Chitrabhanu S. Bhunjun,
  • Vinodhini Thiyagaraja,
  • Darbhe J. Bhat,
  • Shu-Cheng He,
  • Qi Zhao,
  • Fatimah Al-Otibi,
  • Pattana Kakumyan,
  • Kevin D. Hyde

摘要

Hermatomyces species are widely distributed in terrestrial and freshwater habitats worldwide. The most distinctive features of the asexual morph of Hermatomyces are sporodochial conidiomata, short micronematous conidiophores and dimorphic conidia (cylindrical and lenticular). During a survey of fungal diversity on Fagales litter in China, three species were collected from dead branches of Alnus sp. (Betulaceae), Lithocarpus xylocarpus (Fagaceae) and Lithocarpus sp. (Fagaceae). Based on morphological characterization and phylogenetic analyses of combined LSU, ITS, TEF1α, and RPB2 sequences, two new species (H. nujiangensis and H. yunnanensis) and one newly collected species (H. hainanensis) were described. Hermatomyces nujiangensis and H. yunnanensis formed distinct clades in the phylogenetic tree. Both species only have lenticular conidia, and the characteristics of conidiophores and conidia distinguish them from other species of Hermatomyces. This study examines and compares them with morphologically similar species and phylogenetically related taxa, presenting detailed illustrations and detailed descriptions of the isolates along with molecular data.