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Polyporus hapalopus sp. nov. (Polyporales, Basidiomycota) from China based on morphological and molecular data

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Abstract

Polyporus sensu lato is understood to be a polyphyletic genus, including two narrowly defined genera (Favolus and Neofavolus), two subclades (Melanopus and Polyporellus), and some scattered species. In this study, Polyporus hapalopus is described and illustrated as a new species on the basis of morphological and molecular evidence. This species is characterized by laterally stipitate, imbricate and large basidiocarps (up to 40 cm diam.), grapefruit odor when fresh, angular pores with lacerate dissepiments, soft (when fresh) to tough (when dry) context, a dimitic hyphal system in context and stipe with variable wide skeleto-binding hyphae, a monomitic hyphal system in trama, and cylindrical basidiospores bearing one or two guttules. Phylogenetically, on the basis of the combined internal transcribed spacer and nuclear large subunit rDNA sequences, P. hapalopus is nested within the Polyporus sensu lato clade, but is separated from four previously established subclades and from other known species.

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Acknowledgments

We express our gratitude to Prof. Yu-Cheng Dai (IFP, China) for his guidance in the taxonomic study and also for his recommendations for improving the manuscript. L.W.Z. thanks Drs. Hai-Sheng Yuan (IFP, China), Shuang-Hui He (BJFC, China) and Wei Li (HMAS, China) for their company in the field trip. Dr. Hai-Sheng Yuan is also thanked for providing the in situ photo of Polyporus hapalopus and preparing the line drawing. The research was financed by National Natural Science Foundation of China (Project Nos. 31200015 & 30910103907) and the Youth Fund for Creative Research Groups, Institute of Applied Ecology, Chinese Academy of Sciences.

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  1. State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China

    Hui-Jun Xue & Li-Wei Zhou

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  1. Hui-Jun Xue
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  2. Li-Wei Zhou
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Correspondence to Li-Wei Zhou.

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Xue, HJ., Zhou, LW. Polyporus hapalopus sp. nov. (Polyporales, Basidiomycota) from China based on morphological and molecular data. Mycol Progress 13, 811–817 (2014). https://doi.org/10.1007/s11557-014-0964-4

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  • DOI: https://doi.org/10.1007/s11557-014-0964-4

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