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Three new species of Cylindrobasidium (Physalacriaceae, Agaricales) from East Asia

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Abstract

Species of the corticioid genus Cylindrobasidium are saprophytes or parasites in forest ecosystems. This study presents three new species of Cylindrobasidium from East Asia, according to study of morphological characteristics, and phylogenetic analyses based on sequence data inferred from nuc rDNA internal transcribed spacer ITS1-5.8S-ITS2 (ITS) region and nuc 28S rDNA (28S). Cylindrobasidium bifidum has smooth hymenophore, subicular cystidia with bifurcate apex, fusiform hymenial cystidia, and pyriform basidiospores. Cylindrobasidium macrosporum is characterized by having smooth to tuberculate hymenophore, presence of guttulate, subicular cystidia with bifurcate apex, presence of guttulate, cylindrical hymenial cystidia with narrow apices, and large, guttulate, fusiform basidiospores. Cylindrobasidium sublaeve has effused to effused-reflexed basidiomata with smooth hymenophore, subfusiform or cylindrical hymenial cystidia, and pyriform basidiospores. A key to species of Cylindrobasidium is provided.

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Acknowledgements

Professor Thomas C. Harrington (Iowa State University, IA, USA) and Prof. Roland Kirschner (National Taiwan University, Taiwan) kindly provided material of Cylindrobasidium ipidophilum used in this study. We are grateful to Miss Siou-Zhen Chen (TNM) for curating studied specimens.

Funding

This study was financed by the Ministry of Science and Technology of ROC (Grant No. MOST 107–2621-B-178–002-MY3). Yi-Chung Lin was funded by the College Student Research Project, Ministry of Science and Technology of ROC (Taiwan) (Grant No. MOST 109–2813-C-178–001-B).

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All authors contributed to the study conception and design. Funding was acquired by Sheng-Hua Wu and Yi-Chung Lin. Material preparation, data collection, and analysis were performed by Yi-Chung Lin, Chia-Ling Wei, Che-Chih Chen, and Sheng-Hua Wu. The first draft of the manuscript was written by Yi-Chung Lin and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Che-Chih Chen or Sheng-Hua Wu.

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The authors declare that they have no conflict of interest.

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Section editor: Yu-Cheng Dai

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Lin, YC., Wei, CL., Chen, CY. et al. Three new species of Cylindrobasidium (Physalacriaceae, Agaricales) from East Asia. Mycol Progress 20, 1297–1308 (2021). https://doi.org/10.1007/s11557-021-01730-8

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  • DOI: https://doi.org/10.1007/s11557-021-01730-8

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