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<p>This work aims to explore the global phylogeny of <i>Hymenochaete</i> (Hymenochaetales, Basidiomycota) by generating new sequences. Using molecular data (ITS and portions of nuc 28S rDNA regions), morphological comparisons, and ecological data, three new species of <i>Hymenochaete</i> are recognized and described here based on specimens found in Cloud Forests from Southern Brazil, representing a vegetational potential for new discoveries. For the first time, DNA sequences of ITS and nuc 28S rDNA for <i>H. leonina</i> and <i>H. iodina</i> were produced and analyzed. Moreover, sequences from <i>H. damicornis</i> specimens collected near to the type locality are provided also from Southern Brazil specimens, making possible the designation of a topotype, in order to bring taxonomic stability for the taxon. Finally, based on our global phylogeny allows the visualization of morphological patterns and discussion of taxa that present polyphyly and wide distribution, that is, potential cryptic species in taxonomic complexes.</p>

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Unveiling the global phylogeny of Hymenochaete Lév. (Hymenochaetales, Basidiomycota) with additional new species and sequences from Southern Brazil

  • 期刊论文

  • 发表日期：

    2025年12月29日

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  • Marcela Monteiro,
  • Genivaldo Alves-Silva,
  • Juliano M. Baltazar,
  • Felipe Bittencourt,
  • Elisandro Ricardo Drechsler-Santos

摘要

This work aims to explore the global phylogeny of Hymenochaete (Hymenochaetales, Basidiomycota) by generating new sequences. Using molecular data (ITS and portions of nuc 28S rDNA regions), morphological comparisons, and ecological data, three new species of Hymenochaete are recognized and described here based on specimens found in Cloud Forests from Southern Brazil, representing a vegetational potential for new discoveries. For the first time, DNA sequences of ITS and nuc 28S rDNA for H. leonina and H. iodina were produced and analyzed. Moreover, sequences from H. damicornis specimens collected near to the type locality are provided also from Southern Brazil specimens, making possible the designation of a topotype, in order to bring taxonomic stability for the taxon. Finally, based on our global phylogeny allows the visualization of morphological patterns and discussion of taxa that present polyphyly and wide distribution, that is, potential cryptic species in taxonomic complexes.