Hyphoderma laceratum W. Li and C. L. Zhao 2026, sp. nov.
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| author | Li, Wen Wang, Haijiao Wang, Xiyan Liao, Xiuhe Wang, Kaisheng Subodini Nuwanthika, Wijesinghe Arachchige Zhao, Changlin |
| author_facet | Li, Wen Wang, Haijiao Wang, Xiyan Liao, Xiuhe Wang, Kaisheng Subodini Nuwanthika, Wijesinghe Arachchige Zhao, Changlin |
| contents | <p><i>Hyphoderma laceratum</i> W. Li and C. L. Zhao sp. nov.</p><p>Figs 16, 17</p><p><b>Typification.</b></p><p>China • Yunnan Province: Diqing, Weixi County, Weideng Town, Fuchuan Village, GPS coordinates 27°17'N, 99°16'E, altitude 1700 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 12 October 2023, CLZhao 34242 (SWFC 00034242), GenBank: ITS = PV 829552, nLSU = PV 810101.</p><p><b>Etymology.</b></p><p><i>laceratum</i> (Lat.): refers to the lacerate hymenial surface of the type specimens.</p><p><b>Description.</b></p><p><i>Basidiomata</i>. Annual, resupinate, adnate, membranaceous, without odor or taste when fresh, up to 10.5 cm long, 2.5 cm wide, and 150 μm thick. Hymenial surface smooth, white to cream when fresh, becoming cream when dry. Sterile margin narrow, white, up to 1 mm.</p><p><i>Hyphal system</i>. Monomitic; generative hyphae with clamp connections, colorless, thin-walled, branched, interwoven, 2.5–3.3 µm in diameter, IKI –, CB –, tissues unchanged in KOH.</p><p><i>Hymenium</i>. Cystidia, two types: (1) Clavate, colorless, thin-walled, smooth, 27–29 × 6.5–8 µm; (2) Capitate, colorless, thin-walled, smooth, 26–30 × 7.5–8.5 µm. Basidia subcylindrical, thin-walled, smooth, slightly flexuous, with four sterigmata and a simple septum at the base, 18–20.5 × 5–7 µm; basidioles similar to basidia in shape but slightly smaller.</p><p><i>Spores</i>. Basidiospores sub-ellipsoid, colorless, thin-walled, smooth, with guttulate, IKI –, CB –, (6 –) 6.5–9 × (2.5 –) 3–4 (– 4.5) µm, L = 7.72 µm, W = 3.49 µm, Q = 2.18–2.35 (n = 330 / 11).</p><p><b>Additional specimens examined (paratypes).</b></p><p>China • Yunnan Province: Diqing, Weixi County, Weideng Town, Fuchuan Village, GPS coordinates 27°17'N, 99°16'E, altitude 1700 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 12 October 2023, CLZhao 34163 (SWFC 00034163), CLZhao 34138 (SWFC 00034138); • Zhonglu Town, GPS coordinates 27°17'N, 99°16'E, altitude 1811 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 15 October 2023, CLZhao 34961 (SWFC 00034961), CLZhao 35040 (SWFC 00035040), CLZhao 34718 (SWFC 00034718), CLZhao 34672 (SWFC 00034672), CLZhao 34958 (SWFC 00034958); • Qujing, Zhanyi District, Lingjiao Town, Xiajia Village, GPS coordinates 25°8'N, 103°6'E, altitude 2040 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 6 March 2023, CLZhao 27226 (SWFC 00027226); • Dehong, Yingjiang County, Tongbiguan Provincial Nature Reserve, GPS coordinates 24°30'N, 97°30'E, altitude 1006 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 19 July 2023, CLZhao 30414 (SWFC 00030414), CLZhao 30552 (SWFC 00030552).</p><p><b>Notes.</b></p><p>In the phylogenetic analysis, <i>Hyphoderma laceratum</i> (CLZhao 34958, CLZhao 34672, CLZhao 34961, CLZhao 34242) formed a closely related sister relationship with <i>H. marginatum</i> (CLZhao 3404), with 99 % ML bootstrap support and a 0.99 BYPP value. However, morphologically, <i>H. marginatum</i> differs from <i>H. laceratum</i> by having a cream hymenial surface and longer basidia (21–31.5 × 5–7 µm vs. 18–20.5 × 5–7 µm; Duan et al. 2023). Morphologically, <i>H. laceratum</i> is similar to <i>H. niveomarginatum</i> by having a cream hymenial surface (Yang et al. 2023). Further, <i>H. niveomarginatum</i> is distinguished from <i>H. laceratum</i> by its moniliform cystidia (Yang et al. 2023). Based on these morphological differences and phylogenetic analysis, we propose it as a new species, <i>Hyphoderma laceratum</i>.</p> |
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| publishDate | 2026 |
| publisher | Zenodo |
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| spellingShingle | Hyphoderma laceratum W. Li and C. L. Zhao 2026, sp. nov. Li, Wen Wang, Haijiao Wang, Xiyan Liao, Xiuhe Wang, Kaisheng Subodini Nuwanthika, Wijesinghe Arachchige Zhao, Changlin Biodiversity Taxonomy Fungi Basidiomycota Agaricomycetes Polyporales Hyphodermataceae Hyphoderma Hyphoderma laceratum <p><i>Hyphoderma laceratum</i> W. Li and C. L. Zhao sp. nov.</p><p>Figs 16, 17</p><p><b>Typification.</b></p><p>China • Yunnan Province: Diqing, Weixi County, Weideng Town, Fuchuan Village, GPS coordinates 27°17'N, 99°16'E, altitude 1700 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 12 October 2023, CLZhao 34242 (SWFC 00034242), GenBank: ITS = PV 829552, nLSU = PV 810101.</p><p><b>Etymology.</b></p><p><i>laceratum</i> (Lat.): refers to the lacerate hymenial surface of the type specimens.</p><p><b>Description.</b></p><p><i>Basidiomata</i>. Annual, resupinate, adnate, membranaceous, without odor or taste when fresh, up to 10.5 cm long, 2.5 cm wide, and 150 μm thick. Hymenial surface smooth, white to cream when fresh, becoming cream when dry. Sterile margin narrow, white, up to 1 mm.</p><p><i>Hyphal system</i>. Monomitic; generative hyphae with clamp connections, colorless, thin-walled, branched, interwoven, 2.5–3.3 µm in diameter, IKI –, CB –, tissues unchanged in KOH.</p><p><i>Hymenium</i>. Cystidia, two types: (1) Clavate, colorless, thin-walled, smooth, 27–29 × 6.5–8 µm; (2) Capitate, colorless, thin-walled, smooth, 26–30 × 7.5–8.5 µm. Basidia subcylindrical, thin-walled, smooth, slightly flexuous, with four sterigmata and a simple septum at the base, 18–20.5 × 5–7 µm; basidioles similar to basidia in shape but slightly smaller.</p><p><i>Spores</i>. Basidiospores sub-ellipsoid, colorless, thin-walled, smooth, with guttulate, IKI –, CB –, (6 –) 6.5–9 × (2.5 –) 3–4 (– 4.5) µm, L = 7.72 µm, W = 3.49 µm, Q = 2.18–2.35 (n = 330 / 11).</p><p><b>Additional specimens examined (paratypes).</b></p><p>China • Yunnan Province: Diqing, Weixi County, Weideng Town, Fuchuan Village, GPS coordinates 27°17'N, 99°16'E, altitude 1700 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 12 October 2023, CLZhao 34163 (SWFC 00034163), CLZhao 34138 (SWFC 00034138); • Zhonglu Town, GPS coordinates 27°17'N, 99°16'E, altitude 1811 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 15 October 2023, CLZhao 34961 (SWFC 00034961), CLZhao 35040 (SWFC 00035040), CLZhao 34718 (SWFC 00034718), CLZhao 34672 (SWFC 00034672), CLZhao 34958 (SWFC 00034958); • Qujing, Zhanyi District, Lingjiao Town, Xiajia Village, GPS coordinates 25°8'N, 103°6'E, altitude 2040 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 6 March 2023, CLZhao 27226 (SWFC 00027226); • Dehong, Yingjiang County, Tongbiguan Provincial Nature Reserve, GPS coordinates 24°30'N, 97°30'E, altitude 1006 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 19 July 2023, CLZhao 30414 (SWFC 00030414), CLZhao 30552 (SWFC 00030552).</p><p><b>Notes.</b></p><p>In the phylogenetic analysis, <i>Hyphoderma laceratum</i> (CLZhao 34958, CLZhao 34672, CLZhao 34961, CLZhao 34242) formed a closely related sister relationship with <i>H. marginatum</i> (CLZhao 3404), with 99 % ML bootstrap support and a 0.99 BYPP value. However, morphologically, <i>H. marginatum</i> differs from <i>H. laceratum</i> by having a cream hymenial surface and longer basidia (21–31.5 × 5–7 µm vs. 18–20.5 × 5–7 µm; Duan et al. 2023). Morphologically, <i>H. laceratum</i> is similar to <i>H. niveomarginatum</i> by having a cream hymenial surface (Yang et al. 2023). Further, <i>H. niveomarginatum</i> is distinguished from <i>H. laceratum</i> by its moniliform cystidia (Yang et al. 2023). Based on these morphological differences and phylogenetic analysis, we propose it as a new species, <i>Hyphoderma laceratum</i>.</p> |
| title | Hyphoderma laceratum W. Li and C. L. Zhao 2026, sp. nov. |
| topic | Biodiversity Taxonomy Fungi Basidiomycota Agaricomycetes Polyporales Hyphodermataceae Hyphoderma Hyphoderma laceratum |
| url | https://doi.org/10.5281/zenodo.18698599 |