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Issue: Vol. 670 No. 1: 24 Oct. 2024
Type: Article
Published: 2024-10-24
DOI: 10.11646/phytotaxa.670.1.5
Page range: 55-62
Abstract views: 56
PDF downloaded: 0

A new agaricoid species of Porotheleum (Porotheleaceae, Agaricales) from Shandong Province, China

Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an, 271018, China
Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an, 271018, China
Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an, 271018, China
Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an, 271018, China
Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an, 271018, China
Shandong Academy of Environmental Science Co, Ltd, Ji’nan, 250109, China
Shandong Academy of Environmental Science Co, Ltd, Ji’nan, 250109, China
Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai’an, 271018, China
agaricoid fungi fungal taxonomy new species phylogeny Fungi

Abstract

Porotheleum microsporum, a new agaricoid species of the genus Porotheleum (Porotheleaceae, Agaricales), was found growing on the live bark of Salix babylonica in Quancheng Park (Ji’nan City, Shangdong Province, China). This discovery, a testament to our rigorous research, is described and illustrated based on morphological, molecular, and ecological evidence. Our phylogenetic analyses based on DNA sequences of the internal transcribed spacers 1 and 2 with the 5.8S rDNA (ITS) and the large subunit of nuclear ribosomal DNA (LSU) support the inclusion of this new species in the genus Porotheleum as it forms an independent clade in the phylogenetic tree. Morphologically, P. microsporum differs from any known species by combining a pale-yellow pileus with an ochre-yellow center and relatively small basidiospores.

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