Favolaschia microcarpa Yu H. Wang, Z. W. Zheng & F. Wu

Favolaschia microcarpa Yu H. Wang, Z. W. Zheng & F. Wu Figs 5, 6, 7 Diagnosis. It is distinguished by its very small (1–3 × 1–2 mm) and white basidiomata, broadly ellipsoid to subglobose basidiospores measuring 6.3–11 × 5.1–9 μm and inhabiting Miscanthus sp. and Trachycarpus fortunei. Holotype. China • Zhejiang Province, Hangzhou, Lin’an District, Dongtianmu Mountain Scenic Area, 30.3405°N, 119.5177°E; 460 m a. s. l.; 24 June 2025, on Miscanthus, F. Wu leg., Wu 3254 (holotype, BJFC 063370). Etymology. Microcarpa (Lat.): referring to the very small basidiomata of the species. Macrostructures. Basidiomata annual, gregarious, gelatinous when fresh, hard when dry. Pilei 1–3 × 1–2 mm, conchoid or subcircular; pileal surface white (A 1) when fresh, slightly shrunken and darkened upon drying, transparent with a reticulate pattern matching the pores below, glabrous; margin straight, crenulate, context thin, transparent. Hymenophore small, gelatinous, poroid, with 4–16 pores per basidiocarp; mature pores 0.2–0.5 mm in diam., round to polygonal, larger near the base and smaller near the edge, the marginal pores often incomplete; tubes up to 0.1 mm long. Stipe absent. Microstructures. Basidiospores (6 –) 6.3–11 × (5 –) 5.1–9 μm, L = 8.82 μm, W = 7.12 μm, Q = 1.18–1.30 (n = 90 / 3), broadly ellipsoid to subglobose, hyaline, thin-walled, smooth, with guttules, faintly IKI +, CB –. Basidia 12–23 × 5–9 μm, clavate, with guttules, 4 - spored, sterigmata 5–9 μm long; basidioles similar in shape to basidia, slightly smaller. Gloeocystidia and acanthocysts absent. Cheilocystidia occur along dissepiment edges, 17–25 × 11–17 μm, broom-shaped or irregular with small diverticulate projections on the sides and at the apex, thin-walled. Pileipellis hyphae interwoven, smooth to diverticulate, thin-walled, 2–5 μm in diam.; terminal cells irregular with small diverticulate projections on the sides and at the apex, perpendicularly arranged to pileal surface. Tramal hyphae interwoven, smooth, loosely embedded in gelatinous matrix, 2–4 μm diam. Clamp connections present. Additional specimen examined (paratype). China • Zhejiang Province, Hangzhou, Linan District, East Tianmu Mountain Scenic Area, 30.3405°N, 119.5177°E; 461 m a. s. l.; 24 June 2025, on Miscanthus, F. Wu leg., Wu 3255 (BJFC 063371). • West Tianmu Mountain National Nature Reserve, 30.3287°N, 119.4392°E; 487 m a. s. l.; 14 September 2025, on Trachycarpus fortunei, F. Wu leg., Wu 4193 (BJFC 064309).