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ORIGINAL RESEARCH article

Front. Microbiol.
Sec. Microbial Physiology and Metabolism
Volume 15 - 2024 | doi: 10.3389/fmicb.2024.1411488

Three new species of Laccaria (Agaricales, Basidiomycota) from Southwest China (Yunnan) based on morphological and multigene sequence data

Provisionally accepted
Li Jing Li Jing 1Che Nian-Jie Che Nian-Jie 2*Cui Yang-Yang Cui Yang-Yang 2*
  • 1 Faculty of Geography, Yunnan Normal University, Kunming, China
  • 2 CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, Yunnan, China

The final, formatted version of the article will be published soon.

    The genus Laccaria has been reported from temperate and tropical areas and is an important constituent in forest ecosystems. However, the species diversity of Laccaria in Southwest China (Yunnan) has been underestimated. In this paper, descriptions based on morphological and multi-gene sequence data from internal transcribed spacer (ITS) region, large subunit ribosomal RNA gene (nrLSU), translation elongation factor 1-α (TEF1α) and the polymerase Ⅱ second largest subunit (RPB2) of three new Laccaria species from Southwest China (Yunnan) are reported. Two of these were characterized by orange pileus and globose to subglobose basidiospores: L. cinnabarina and L. spinulosa. While The first species L. cinnabarina has orange red colored basidiocarps with conspicuously pellucid-striate pattern, is characterized by its dark brown pileus often obviously depressed at center, globose to subglobose basidiospores, and a fibrillose stipe with longitudinally striations,. L. spinulosa has a brownish orange to brown fruiting body with light white pruinae and 2-spored basidia. Laccaria longistriata is characterized by brown to flesh-colored basidioma, prominently striate to sulcate pileus and echinate, globose to subglobose basidiospores. Laccaria spinulosa has a brownish orange to brown fruiting body with light white pruinae and 2-spored basidia. The three new species wereis described, illustrated and compared with closely related and similar species in morphology and phylogeny.

    Keywords: Morphological characters, multi-gene sequence, Novel species, Laccaria, Taxonomy

    Received: 04 Apr 2024; Accepted: 08 Jul 2024.

    Copyright: © 2024 Jing, Nian-Jie and Yang-Yang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Che Nian-Jie, CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, Yunnan, China
    Cui Yang-Yang, CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, 650201, Yunnan, China

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