Phanerochaete albocremea 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.14862358
persistent identifier	https://treatment.plazi.org/id/A185A80F-712D-56A7-BEBB-912396513A10
treatment provided by	MycoKeys by Pensoft
scientific name	Phanerochaete albocremea Y. Xu & C. L. Zhao
status	sp. nov.

Treatment

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

Figs 7 View Figure 7 , 8 View Figure 8

Diagnosis.

Differs from other species in the soft coriaceous basidiomata and white to pale cream hymenial surface, a monomitic hyphal system, clavate basidia, and narrowly ellipsoid basidiospores.

Holotype.

China • Yunnan Province, Zhaotong, Wumengshan National Nature Reserve , 28°03'N, 104°20'E, altitude 1500 m, on the fallen angiosperm branch, leg. C. L. Zhao, 28 August 2023, CLZhao 32235 ( SWFC). GoogleMaps

Etymology.

albocremea (Lat.): refers to the holotype having a white to pale cream hymenial surface.

Fruiting body.

Basidiomata annual, resupinate, adnate, without odor or taste when fresh, soft coriaceous upon drying, up to 5.2 cm long, 1.1 cm wide, 100–150 μm thick. Hymenial surface smooth, white when fresh, white to pale cream when dry, unchanged in KOH. Sterile margin white, fibrous, up to 2 mm wide.

Hyphal system.

Monomitic; generative hyphae simple septa, IKI –, CB –; tissues unchanged in KOH. Subicular hyphae colorless, thin- to thick-walled, straight, interwoven, usually encrusted with crystals, 6.5–9.5 μm in diameter. Crystals abundant, crowded. Subhymenium indistinct, hyphae in this layer similar to subicular hyphae.

Hymenial layer.

Generative hyphae vertical, short-celled, colorless, 3–5 μm in diameter, thin- to slightly thick-walled. Crystals abundant, crowded. Cystidia and cystidioles absent. Basidia clavate, slightly flexuous, thin-walled, with four sterigmata and a simple septum, 16–21 × 4–5.5 μm. Basidioles similar to basidia in shape, but slightly smaller.

Basidiospores.

Narrowly ellipsoid, colorless, thin-walled, smooth, occasionally with small oil drops, IKI –, CB –, 3.5–5 × 2–3 (– 3.5) μm, L = 4.30 μm, W = 2.69 μm, Q = 1.59 (n = 120 / 4).

Additional specimens examined

(paratypes). • Yunnan Province, Zhaotong, Wumengshan National Nature Reserve , 28°03'N, 104°20'E, altitude 1500 m, on the dead bamboo, leg. C. L. Zhao, 27 August 2023, CLZhao 31998 GoogleMaps ; on the angiosperm stump, leg. C. L. Zhao, 27 August 2023, CLZhao 32032, CLZhao 32035 ( SWFC) GoogleMaps .