Abstract
Based on morphological characteristics and molecular phylogenetic analysis using nuc rDNA ITS1-5.8S-ITS2 and 28S rDNA sequences, two new species of Physisporinus, Physisporinus castanopsidis sp. nov. and Physisporinus roseus sp. nov. are described from Yunnan Province, Southwest China. Physisporinus castanopsidis is characterised by resupinate, snow white and waxy basidiocarps which become pale brown when bruised, abundant hymenial cystidia and cystidia-like hyphae at dissepiment edge, generative hyphae with swollen tips, distinctly ovoid basidiospores measuring 4.8–5.6 × 3.6–4.2 μm and growing on rotten wood or roots of Castanopsis. Physisporinus roseus is characterised by perennial, resupinate and thick basidiomata with rose fresh pores which becoming vinaceous grey up on drying, a distinct context layer present among tube layers, abundant clavate, smooth cystidia and subglobose basidiospores measuring 3.5–4.1 × 3.1–3.8 μm.
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We express our gratitude to Miss Meng Zhou (China) for the drawings.
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The National Natural Science Foundation of China (Project No. 31870007) and the Jiangsu Vocational College of Agriculture and Forestry Research Project (2020kj003).
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Jia-Jia Chen performed the experiment and the data analyses and wrote the manuscript. Yu-Cheng Dai designed the experiments and helped perform the analysis with constructive discussions.
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Chen, JJ., Dai, YC. Two new species of Physisporinus (Polyporales, Basidiomycota) from Yunnan, Southwest China. Mycol Progress 20, 1–10 (2021). https://doi.org/10.1007/s11557-020-01647-8
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DOI: https://doi.org/10.1007/s11557-020-01647-8