AUTHOR=Li Jing , Che Nian-Jie , Cui Yang-Yang 

TITLE=Three new species of Laccaria (Agaricales, Basidiomycota) from Southwest China (Yunnan) based on morphological and multi-gene sequence data

JOURNAL=Frontiers in Microbiology

VOLUME=15

YEAR=2024

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2024.1411488

DOI=10.3389/fmicb.2024.1411488

ISSN=1664-302X

ABSTRACT=<sec><title>Introduction</title><p>The genus <italic>Laccaria</italic> has been reported from temperate and tropical areas and is an important constituent in forest ecosystems. However, the species diversity of <italic>Laccaria</italic> in Southwest China (Yunnan) has been underestimated.</p></sec><sec><title>Methods</title><p>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 (<italic>TEF</italic>1α) and the polymerase II second largest subunit (<italic>RPB</italic>2) of three new <italic>Laccaria</italic> species from Southwest China (Yunnan) are reported.</p></sec><sec><title>Results</title><p>Two of these were characterized by orange pileus and globose to subglobose basidiospores: <italic>L. cinnabarina</italic> and <italic>L. spinulosa</italic>. While <italic>L. cinnabarina</italic> has orange red colored basidiocarps with conspicuously pellucid-striate pattern, and a fibrillose stipe with longitudinally striations, <italic>L. spinulosa</italic> has a brownish orange to brown fruiting body with light white pruinae and 2-spored basidia. <italic>Laccaria longistriata</italic> is characterized by brown to flesh-colored basidioma, prominently striate to sulcate pileus and globose to subglobose basidiospores.</p></sec><sec><title>Discussion</title><p>The three new species were described, illustrated and compared with closely related species in morphology and phylogeny.</p></sec>