Trechispora wenshanensis K. Y. Luo & C. L. Zhao, 2024

Luo, Kai-Yue, Su, Jiang-Qing & Zhao, Chang-Lin, 2024, Morphological and molecular identification for four new wood-inhabiting species of Trechispora (Basidiomycota) from China, MycoKeys 105, pp. 155-178 : 155-178

Trechispora wenshanensis K. Y. Luo & C. L. Zhao sp. nov.

Figs 8 , 9

Holotype.

China. Yunnan Province, Wenshan, Babao Town, Balao battle site , 23 ° 22 ′ N, 104 ° 15 ′ E, altitude 1300 m a. s. l., on the fallen angiosperm branch, leg. C. L. Zhao, 19 January 2019, CLZhao 11649 ( SWFC).

Etymology.

Wenshanensis (Lat.): referring to the locality (Wenshan) of the type specimen.

Description.

Basidiomata annual, resupinate, adnate, cottony, easily to separate from substrate, without odor or taste when fresh, up to 5.5 cm long, 4 cm wide, and 200–400 µm thick. Hymenial surface smooth, slightly cream when fresh, cream to buff on drying. Sterile margin indistinct, cream, and 1–2 mm wide.

Hyphal system monomitic, generative hyphae with clamp connections, colorless, thin- to thick-walled, branched, interwoven, 1–2 µm in diameter; IKI –, CB –, tissues unchanged in KOH.

Cystidia and cystidioles are absent; basidia barrelled, with four sterigmata and a basal clamp connection, 7–10 × 3–5 μm.

Basidiospores ellipsoid, colorless, thin-walled, warted, IKI –, CB –, (2 –) 2.5–3.7 (– 4) × (1.5 –) 2–3 µm, L = 3.02 µm, W = 2.37 µm, Q = 1.25–1.30 (n = 90 / 3).

Additional specimens examined

(paratypes). China. Yunnan Province, Wenshan, Funing county, Guying village, 23 ° 42 ′ N, 105 ° 53 ′ E, altitude 1000 m a. s. l., on the fallen angiosperm branch, leg. C. L. Zhao, 20 January 2019, CLZhao 11715; Yunnan Province, Lincang, Lancangjiang Forestry Region, 25 ° 37 ′ N, 97 ° 30 ′ E, altitude 1750 m a. s. l., on the fallen angiosperm branch, leg. C. L. Zhao, 21 July 2022, CLZhao 22940 ( SWFC).

Figures

Figure 8. Basidiomata of Trechispora wenshanensis (holotype) A the front of the basidiomata B characteristic hymenophore. Scale bars: 1 cm (A); 1 mm (B).

Figure 9. Microscopic structures of Trechispora wenshanensis (holotype) A basidiospores B basidia and basidioles C a cross section of basidiomata. Scale bars: 5 μm (A); 10 µm (B, C).