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    Irpex subulatus Z. B. Liu & Y. C. Dai, comb. nov.

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    Irpex subulatus (Ryvarden) Z.B. Liu & Y.C. Dai, comb. nov. (Fig. 4) MycoBank no.— MB 841368 Basionym: Oxyporus subulatus Ryvarden, Nordic Journal of Botany 2(3): 280 (1982). ≡ Flavodon subulatus (Ryvarden) F. Wu, Jia J. Chen & Y.C. Dai, Mycologia 109(5): 761 (2017). = Flavodon ambrosius D.R. Simmons, You Li, C.C. Bateman & J. Hulcr, Mycotaxon 131(2): 279 (2016). Holotype:— Thailand. Cangwat Lamphum, Doi Inthanond, 20 February 1979, Ryvarden 17843 Description: See Hjortstam & Ryvarden (1982, as Oxyporus subulatus). Specimens examined: CHINA. Henan Province, Xiuwu County, Yuntaishan, on fallen angiosperm trunk, 4 September 2009, B. K. Cui, Cui 7275 (BJFC 005762); Hubei Province, Shennongjia, Muyu, on fallen trunk of Celtis, 25 September 2004, Y. C. Dai, Dai 5929 (BJFC 010379, IFP 003711); Shanxi Province, Zhouzhi County, Taibaishan Nature Reserve, on fallen angiosperm trunk, 25 October 2006, H. S. Yuan, Yuan 2733 (BJFC 001406, IFP 003703); THAILAND. Chiang Mai, on fallen angiosperm trunk, 24 July 2016, Y. C. Dai, Dai 16719 (BJFC 022826). Notes: Simmons et al. (2016) described Flavodon ambrosius as a new species. In fact, we found that its description fits Oxyporus subulatus well, and its holotype (Hulcr 6853) sequences of ITS and LSU (ITS: KR 119072; LSU: KR 119075) are almost the same as those from Oxyporus subulatus. Wu et al. (2017) transferred Oxyporus subulatus to Flavodon based on the results of the phylogenetic analyses. Herein, we place this species in Irpex based on morphological and phylogenetic evidence (Fig. 1).Published as part of Tian, Xue-Mei, Man, Xiao-Wu & Liu, Zhan-Bo, 2022, Irpex jinshaensis sp. nov. and I. subulatus comb. nov. (Irpicaceae, Polyporales), evidenced by morphological characters and phylogenetic analysis, pp. 73-82 in Phytotaxa 533 (1) on pages 79-80, DOI: 10.11646/phytotaxa.533.1.4, http://zenodo.org/record/597413
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