Xenasmatella bambusicola Q. Yuan & C.L. Zhao, 2023

Yuan, Qi, Luo, Kai-Yue, Zhang, Ying & Zhao, Chang-Lin, 2023, Morphological characteristics and phylogenetic analyses revealed three new wood-inhabiting fungi (Agaricomycetes, Basidiomycota) in Southern China, Phytotaxa 592 (3), pp. 179-195 : 189-191

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).

Figures

FIGURE 7. Basidiomata of Xenasmatella bambusicola (holotype). Bars: A = 1 cm, B = 1 mm.

FIGURE 8. Microscopic structures of Xenasmatella bambusicola (holotype). A Basidiospores. B Basidia and basidioles. C A section of hymenium. Bars: A–C = 10 µm.