Botryobasidium daweishanense J. L. Zhang, H. M. Zhou & C. L. Zhao, 2025

Zhang, Jianling, Gu, Zirui, Zhou, Chunqin & Zhou, Hongmin, 2025, Molecular phylogeny and morphology reveal four new species in Hymenochaetales and one new species in Cantharellales from Southwestern China, MycoKeys 115, pp. 87-135 : 87-135

publication ID	https://doi.org/10.3897/mycokeys.115.142433
DOI	https://doi.org/10.5281/zenodo.15013488
persistent identifier	https://treatment.plazi.org/id/9104FC33-258B-540E-90AD-59E720D52954
treatment provided by	MycoKeys by Pensoft
scientific name	Botryobasidium daweishanense J. L. Zhang, H. M. Zhou & C. L. Zhao
status	sp. nov.

Treatment

Botryobasidium daweishanense J. L. Zhang, H. M. Zhou & C. L. Zhao sp. nov.

Figs 7 View Figure 7 , 8 View Figure 8

Diagnosis.

Botryobasidium daweishanense differs from B. subcoronatum by its araneose hymenial surface, smaller basidia, fusiform, cyanophilous, and wider basidiospores.

Holotype.

China • Yunnan Province, Honghe, Pingbian County, Daweishan National Nature Reserve , 28°42'N, 114°11'E, evel. 1356 m asl., on fallen angiosperm branch, 1 August 2019, CLZhao 40062 ( SWFC). GoogleMaps

Etymology.

Daweishanense (Lat.) refers to the type location “ Daweishan National Nature Reserve, ” China.

Description.

Basidiomata. Annual, resupinate, coriaceous, without odor or taste when fresh, up to 1.6 cm long, 1.5 cm wide, and 100 μm thick. Hymenial surface araneose, cream when fresh, straw-yellow to yellowish when dry. Sterile margin thin, indistinct, slightly yellowish, up to 0.5 mm.

Hyphal system. Monomitic; generative hyphae with clamp connections, hyaline, thin to slightly thick-walled, frequently branched, interwoven, 5.0–8.0 μm in diam, IKI –, CB +; tissues unchanged in KOH.

Hymenium. Cystidia and cystidoles absent. Basidia barred, slightly sinuous, with six short sterigmata and a basal clamp connection, 11.5–18.0 × 5.0–8.0 μm; basidioles dominant, in shape similar to basidia, but slightly smaller. Basidiospores. Fusiform, hyaline, thin-walled, smooth, IKI –, CB +, (6.0 –) 6.1–7.3 × (3.1 –) 3.3–3.9 (– 4.1) μm, L = 6.65 μm, W = 3.64 μm, Q = 1.81–1.85 (n = 60 / 2).

Additional specimens examined.