Efibula punctata Z. R Gu & C. L. Zhao 2025, sp. nov.

Efibula punctata Z. R Gu & C. L. Zhao sp. nov. Figs 11, 12, 13 Diagnosis. Differs from other Efibula species by its membranaceous, slightly gray to pale brown basidiomata, a monomitic hyphal system with simple-septate generative hyphae, and ellipsoid basidiospores measuring 4.3–6.2 × 2.2–3.3 µm. Holotype. China • Yunnan Province, Dehong, Yingjiang County, Tongbiguan Provincial Nature Reserve, GPS coordinates: 27°77'N, 104°25'E, altitude 1900 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 18 July 2023, CLZhao 30011, GenBank: ITS = PV 470544, nLSU = PV 474189 (SWFC). Etymology. Punctata (Latin or Greek origin): refers to the species having cushion-shaped hymenial surface of the type specimens. Description. Basidiomata. Annual, resupinate, closely adnate, thin membranaceous, without odor or taste when fresh, up to 10 cm long, 2 cm wide, and 200 μm thick at center. Hymenophore smooth, cream to slightly brown when fresh, slightly gray to pale brown upon drying. Sterile margin narrow, cream to slightly brown, up to 1 mm. Hyphal system. Monomitic; generative hyphae with simple septa, colorless, thin-walled, smooth, branched, interwoven, 1.5–3.5 µm in diameter; IKI –, CB –; tissues unchanged in KOH. Hymenium. Cystidia absent, cystidoles mostly subfusiform, colorless, thin-walled, smooth, 9.8–22 × 2.8–5.7 µm. Basidia subcylindrical to subclavate, slightly flexuous, with a basal simple septum and four sterigmata, 11.8–19.4 × 3.7–5.9 µm; basidioles numerous, in shape similar to basidia but smaller. Basidiospores. Basidiospores ellipsoid, colorless, thin-walled, IKI –, CB –, (3.6 –) 4.3–6.2 (– 6.7) × (1.8 –) 2.2–3.3 (– 3.9) µm, L = 5.17 µm, W = 2.74 µm, Q = 1.81–1.92 (n = 240 / 8). Additional specimens examined (paratypes). China • Yunnan Province, Dali, Weishan County, Leqiu Town, Zhongyao Village, GPS coordinates: 25°01'N, 100°4'E, altitude 1900 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 19 July 2022, CLZhao 22764, GenBank: ITS = PV 470541, nLSU = PV 474186 (SWFC). • Dehong, Yingjiang County, Tongbiguan Provincial Nature Reserve, GPS coordinates: 24°42'N, 97°56'E, altitude 850 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 17 July 2023, CLZhao 29674, GenBank: ITS = PV 470542; nLSU = PV 474187; CLZhao 29678, GenBank: ITS = PV 470543; nLSU = PV 474188; on the fallen angiosperm branch, leg. C. L. Zhao, 18 July 2023, CLZhao 30054, GenBank: ITS = PV 470545; nLSU = PV 474190; on the fallen angiosperm branch, leg. C. L. Zhao, 20 July 2023, CLZhao 30615, GenBank: ITS = PV 470546; nLSU = PV 474191, CLZhao 30637, GenBank: ITS = PV 470547; nLSU = PV 474192, CLZhao 30648, GenBank: ITS = PV 470548; nLSU = PV 474193, CLZhao 30659, GenBank: ITS = PV 470549; nLSU = PV 474194, CLZhao 30664, GenBank: ITS = PV 470550; nLSU = PV 474195, CLZhao 30691, GenBank: ITS = PV 470551; nLSU = PV 474196, CLZhao 30718, GenBank: ITS = PV 470552; nLSU = PV 474197 (SWFC).