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Background <p><i>Trechispora</i> (Hydnodontaceae) comprises a diverse group of wood- and soil-inhabiting fungi, primarily functioning as saprotrophs, with some species forming symbiotic associations with plants and animals. Despite the recognition of over 100 species worldwide, its diversity in Taiwan remains understudied. This study presents the first comprehensive taxonomic revision of <i>Trechispora</i> in Taiwan, integrating morphological and phylogenetic analyses based on sequence data from the nuc rDNA internal transcribed spacer ITS1-5.8S-ITS2 (ITS) region and the nuc 28S rDNA (28S).</p> Results <p>We describe four new species (<i>Trechispora acerosa</i>, <i>T. floralis</i>, <i>T. formosana</i>, and <i>T. orchidophila</i>) and report seven newly recorded species for Taiwan (<i>T. crystallina</i>, <i>T. dentata</i>, <i>T. latehypha</i>, <i>T. mollusca</i>, <i>T. odontioidea</i>, <i>T. subsinensis</i>, and <i>T. wenshanensis</i>). <i>T. sinensis</i> is synonymized under <i>T. odontioidea</i>. Morphological and phylogenetic analyses support their taxonomic placements, and an identification key to accepted <i>Trechispora</i> species in Taiwan is provided.</p> Conclusion <p>This study expands the known diversity of <i>Trechispora</i> in Taiwan to 17 species, highlighting their ecological significance and potential interactions with plants in Taiwan’s forest ecosystems.</p>

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New species and new records of Trechispora (Trechisporales, Basidiomycota) from Taiwan

  • 期刊论文

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  • 发表日期：

    2025年7月21日

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  • Yi-Chung Lin,
  • Yu-Ming Huang,
  • Yi-Lun Huang,
  • Shi-Liang Liu,
  • Shuang-Hui He,
  • Li-Wei Zhou,
  • Che-Chih Chen

摘要

Background

Trechispora (Hydnodontaceae) comprises a diverse group of wood- and soil-inhabiting fungi, primarily functioning as saprotrophs, with some species forming symbiotic associations with plants and animals. Despite the recognition of over 100 species worldwide, its diversity in Taiwan remains understudied. This study presents the first comprehensive taxonomic revision of Trechispora in Taiwan, integrating morphological and phylogenetic analyses based on sequence data from the nuc rDNA internal transcribed spacer ITS1-5.8S-ITS2 (ITS) region and the nuc 28S rDNA (28S).

Results

We describe four new species (Trechispora acerosa, T. floralis, T. formosana, and T. orchidophila) and report seven newly recorded species for Taiwan (T. crystallina, T. dentata, T. latehypha, T. mollusca, T. odontioidea, T. subsinensis, and T. wenshanensis). T. sinensis is synonymized under T. odontioidea. Morphological and phylogenetic analyses support their taxonomic placements, and an identification key to accepted Trechispora species in Taiwan is provided.

Conclusion

This study expands the known diversity of Trechispora in Taiwan to 17 species, highlighting their ecological significance and potential interactions with plants in Taiwan’s forest ecosystems.