Xenasmatella bambusicola Q. Yuan & C.L. Zhao, sp. nov. Figs. 7, 8

MycoBank no.: MB 846984

Holotype:— CHINA, Yunnan Province, Wenshan, Xiaoqiaogou National Nature Reserve, E 104°41′, N 23°21′, elev. 1900 m, on dead bamboo, 15 Janurary 2019, CLZhao 10985 (SWFC).

Etymology:— Bambusicola (Lat.) —refers to the host from which the holotype occurrence on dead bamboo.

Fruiting body:— Basidiomata resupinate, adnate, thin, very hard to separate from substrate, membranous, without odor or taste when fresh, up to 11 cm long, 1 cm wide, 30–80 µm thick. Hymenial surface arachnoid, white when fresh, white to greyish when dry. Sterile margin thin, white.

Hyphal structure:— Hyphal system monomitic, generative hyphae with clamp connections, colorless, thin-walled, 1.5–2 µm in diameter, IKI–, CB–; tissues unchanged in KOH.

Hymenium:— Cystidia and cystidioles absent; basidia pleural, clavate, with 2 sterigmata and a basal clamp connection, 9–12.5 × 3.5–5 µm.

Spores:— Basidiospores ellipsoid, colorless, thin-walled, warted, with one oil drop, IKI–, CB–, 3–7 × 2–4.5µm, L = 5.45 µm, W = 3.65 µm, Q = 1.5 (n = 30/1).