Morphology and multigene phylogeny reveals five new species of Hydnaceae (Cantharellales, Basidiomycota) from China Zhou, Qian Qian, Chengbin Zhang, Chuyun Su, Qidong Li, Yiliang Zhang, Shihui Mu, Nian Xu, Taimin Zhou, Hongmin Zhao, Changlin MycoKeys 2025 2025-06-26 119 67 94 Q. Zhou & C. L. Zhao Q. Zhou & C. L. Zhao 2025 Agaricomycetes Hydnaceae Burgella Fungi Cantharellales Basidiomycota species albofarinacea sp. nov.   Figs 3, 4, 5    Holotype.   China• Yunnan Province, Zhaotong, Yiliang County, Longhai Town, Jianfeng mountain, GPS coordinates: 27°76′N, 104°37′E, altitude:  1777 masl., on the fallen branch of angiosperm, leg. C. L. Zhao,  26 August 2023, CL Zhao 31820 ( SWFC).   Etymology.  albofarinacea(Lat.): refers to the albicans and farinaceous hymenophore of the type specimens.   Description. Basidiomata annual, resupinate, adnate, pellicular, coriaceous, without odor or taste when fresh, up to 11.5 cmlong, 2 cmwide, 50–100 µm thick. Hymenial surface smooth, farinaceous, white when fresh and drying, cracked. Sterile margin thin, white, thinning out, up to 1 mmwide.   Figure 3. Basidiomata of  Burgella albofarinacea(holotype). Scale bars: 1 cm ( A); 1 mm ( B). Hyphal system monomitic, generative hyphae with clamp connections, sometimes with oily contents, colorless, slightly thick-walled, frequently branched, interwoven, 3.5–5.5 μm in diameter; IKI –, CB –, tissues unchanged in KOH.   Figure 4. Microscopic structures of  Burgella albofarinacea(holotype): basidiospores ( A), basidia and basidioles ( B), a section of hymenium ( C). Scale bars: 5 µm ( A); 10 µm ( B, C). Cystidia and cystidioles absent. Basidia suburniform to urniform, slightly thick-walled, with 8 sterigmata and a basal clamp connection, 10.5–22 × 3.5–7 μm; basidioles abundant, in shape similar to basidia, but slightly smaller.   Figure 5. Microscopic structures of  Burgella albofarinacea(holotype): basidiospores ( A), basidia ( B), basidioles ( C), a section of hymenium ( D), generative hyphae ( E, F). Scale bars: 10 µm ( A – F). Basidiospores ellipsoid to allantoid, colorless, thin-walled, smooth, with oil drop, IKI –, CB –, (4 –) 4.5–6.5 (– 7) × 2–4 μm, L = 5.34 µm, W = 2.83 µm, Q = 1.79–1.97 μm (n = 120 / 4).   Additional specimens examined ( paratypes).   China• Yunnan Province, Zhaotong, Yiliang County, Longan Town, GPS coordinates: 27°73′N, 104°16′E, altitude:  1550 masl., on the fallen branch of angiosperm, leg. C. L. Zhao,  27 August 2023, CLZhao 32026, CLZhao 31855 ( SWFC)•  Zhaotong, Yiliang County, Xiaocaoba Town, GPS coordinates:  27°26′N, 104°26′E, altitude:  2225 masl., on the fallen branch of angiosperm, leg. C. L. Zhao,  28 August 2023, CLZhao 32468 ( SWFC). 5200536305 on the fallen branch of angiosperm 2023-08-26 SWFC C. L. Zhao China Yiliang County 1777 Jianfeng mountain 104.61667 Zhaotong 1 Yunnan Province holotype 5200536302 on the fallen branch of angiosperm 2023-08-27 SWFC C. L. Zhao China Yiliang County 1550 Longan Town 104.26667 Zhaotong 1 Yunnan Province 5200536304 on the fallen branch of angiosperm 2023-08-28 SWFC C. L. Zhao China Yiliang County 2225 27.433332 Xiaocaoba Town 1237 104.433334 Zhaotong 1 Yunnan