Conferticium albocremeum L. Wang & C. L. Zhao 2025, sp. nov.

Conferticium albocremeum L. Wang & C. L. Zhao sp. nov. Figs 6, 7, 8 Typification. China. Yunnan Province • Xishuangbanna, Wild Elephant Valley, GPS coordinates: 22°10′N, 100°51′E, altitude: 900 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 25 January 2024 CLZhao 35693 (SWFC!). Etymology. Albocremeum (Lat.) refers to the new species having white to cream hymenophore. Basidiomata. Annual, resupinate, closely adnate, membranaceous, without odor or taste when fresh, up to 10 cm long, 2 cm wide, and 700 μm thick. Hymenophore smooth, white (60) to cream (4 A 2 / 3) when fresh, cream (4 A 2 / 3) upon drying. Sterile margin narrow, cream (4 A 2 / 3), up to 1 mm. Hyphal system. Monomitic; generative hyphae with simple-septa, colorless, thin-walled, smooth, rarely branched, interwoven, IKI +, CB –, 2–3 µm in diameter; tissues unchanged in KOH. Hymenium. Gloeocystidia subclavate, flexuous, colorless, mostly constricted in the middle, thin-walled, smooth, 33–47.5 × 5–8 µm. Basidia subcylindrical to subclavate, slightly flexuous, with a basal simple septum and four sterigmata, 22–36 × 4.5–7 µm; basidioles numerous, in shape similar to basidia. Spores. Basidiospores ellipsoid with a distinct apiculus, colorless, thin-walled, finely verrucose but appearing smooth by light microscope, IKI +, CB –, 9–11 × 5–7 µm, L = 9.82 µm, W = 5.84 µm, Q = 1.36–1.68 (n = 90 / 3). Additional specimens examined (paratypes). China. Yunnan Province • Dehong, Mang City, Mengga Town, Tongbiguan Provincial Nature Reserve, GPS coordinates: 24°46′N, 97°34′E, altitude: 1300 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 29 June 2024, CLZhao 36343 • Dehong, Yingjiang County, Tongbiguan Provincial Nature Reserve, GPS coordinates: 25°50′N, 97°36′E, altitude: 1000 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 2 July 2024, CLZhao 37176 • Tengchong, Tuantian Town, Gaoligongshan National Nature Reserve, GPS coordinates: 25°27′N, 98°46′E, altitude: 2500 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 7 July 2024, CLZhao 39283 (SWFC!).