Phanerochaete punctata Y. Xu & C. L. Zhao, 2025

Xu, Ying, Yang, Yang, Yang, Xin, Chen, Daxiang, Zheng, Wen, Shen, Kaize, Zhang, Sicheng & Zhao, Changlin, 2025, Molecular phylogeny and taxonomy reveal two new genera and five new species in Phanerochaetaceae (Polyporales) from Yunnan, Southwest China, MycoKeys 113, pp. 263-294 : 263-294

publication ID	https://doi.org/10.3897/mycokeys.113.140624
DOI	https://doi.org/10.5281/zenodo.14862350
persistent identifier	https://treatment.plazi.org/id/406033B2-4231-552F-AA80-91D5BC8E3298
treatment provided by	MycoKeys by Pensoft
scientific name	Phanerochaete punctata Y. Xu & C. L. Zhao
status	sp. nov.

Treatment

Phanerochaete punctata Y. Xu & C. L. Zhao sp. nov.

Figs 11 View Figure 11 , 12 View Figure 12

Diagnosis.

Differs from other species in thin basidiomata and white to pale buff hymenial surface, a monomitic hyphal system, cylindrical to subfusiform leptocystidia, clavate basidia, and ellipsoid basidiospores.

Holotype.

China • Yunnan Province, Dehong, Yingjiang County, Tongbiguan Provincial Nature Reserve , 23°48'N, 97°38'E, altitude 1500 m, on the fallen angiosperm branch, leg. C. L. Zhao, 19 July 2023, CLZhao 30512 ( SWFC). GoogleMaps

Etymology.

punctata (Lat.) refers to the holotype having punctate basidiomata.

Fruiting body.

Basidiomata annual, resupinate, adnate, without odor or taste when fresh, membranaceous upon drying, up to 6.3 cm long, 1.7 cm wide, 40–100 μm thick. Hymenial surface thin, white when fresh, white to pale buff when dry, unchanged in KOH. Sterile margin narrow, fibrous, white, up to 0.5 mm wide.

Hyphal system.

Monomitic; generative hyphae mostly simple septate, rarely with single or double clamp connections, IKI –, CB –; tissues unchanged in KOH. Subicular hyphae colorless, thick-walled, straight, interwoven, 5.5–8.5 μm in diameter, presence of double clamp connections. Crystals abundant, crowded. Subhymenium indistinct, hyphae in this layer similar to subicular hyphae.

Hymenial layer.

Generative hyphae vertical, short-celled, colorless, 3–4.5 μm in diameter, thin- to slightly thick-walled. Crystals abundant, crowded. Leptocystidia cylindrical to subfusiform, colorless, thin-walled, smooth, sometimes slightly flexuous, numerous, 30–37.5 × 4.5–7 μm. Basidia clavate, slightly flexuous, thin-walled, with four sterigmata and a simple septum, 18–22 × 5–7 μm. Basidioles similar to basidia in shape, but slightly smaller.

Basidiospores.

Ellipsoid, colorless, thin-walled, smooth; IKI –, CB –; 3.5–5 (– 5.5) × 2–3.5 μm, L = 4.29 μm, W = 2.79 μm, Q = 1.53 (n = 30 / 1).

Additional specimen examined

(paratype). China • Yunnan Province, Dehong, Yingjiang County, Tongbiguan Provincial Nature Reserve , 23°48'N, 97°38'E, altitude 1500 m, on the fallen angiosperm branch, leg. C. L. Zhao, 19 July 2023, CLZhao 30365 ( SWFC) GoogleMaps .