Phanerochaete citrinoalba K. Y. Luo, Yuan Yuan, Y. C. Dai & Xin Zhang, 2024

Luo, Kai-Yue, Zhang, Xin, Dai, Yu-Cheng & Yuan, Yuan, 2024, Four new species of Phanerochaete (Polyporales, Basidiomycota) from China, MycoKeys 111, pp. 41-64 : 41-64

publication ID	https://doi.org/10.3897/mycokeys.111.133093
DOI	https://doi.org/10.5281/zenodo.14269284
persistent identifier	https://treatment.plazi.org/id/8FC94ED8-1F57-5518-88C1-9D2D7CEB83CE
treatment provided by	MycoKeys by Pensoft (2024-12-03 14:27:08, last updated 2024-12-03 17:39:22)
scientific name	Phanerochaete citrinoalba K. Y. Luo, Yuan Yuan, Y. C. Dai & Xin Zhang
status	sp. nov.

Treatment

Phanerochaete citrinoalba K. Y. Luo, Yuan Yuan, Y. C. Dai & Xin Zhang sp. nov.

Figs 4 View Figure 4 , 5 View Figure 5

Holotype.

China • Xizang Autonomous Region, Nyingchi, Sejila Mountain ; on dead bamboo; 23. X. 2023; Dai 26584 ( BJFC 044134 About BJFC ).

Etymology.

Citrinoalba (Lat.) refers to the species having yellowish to whitish rhizomorphs.

Description.

Basidiomata annual, resupinate, adnate, coriaceous, without odour and taste when fresh, up to 9 cm long, 1.5 cm wide, 70–130 µm thick. Hymenial surfaces smooth, cracking, white to cream when fresh, cream to slightly buff upon drying. Becoming greyish brown in KOH. Sterile margins distinct, concolorous with hymenial surface, usually with yellowish to whitish rhizomorphas, and up to 5 mm.

Hyphal system monomitic, generative hyphae mostly with simple septa, occasionally with clamp connections in subiculum, IKI –, CB –; tissue unchanged in KOH.

Subicular hyphae hyaline, thin- to thick-walled, frequently simple septate, occasionally bearing clamp connections, branched at acute angles, subparallel to interwoven, 3–6 µm in diameter. Subhymenial hyphae hyaline, thin- to thick-walled, clampless, 2–3.5 µm in diameter, encrusted with crystal granules.

Cystidia and cystidioles absent. Subhymenium frequently with crystal granules. Basidia clavate, with four sterigmata and a basal simple septum, 17–25 × 4–7 µm; basidioles of similar shape to basidia, but smaller.

Basidiospores ellipsoid to oblong ellipsoid, hyaline, thin-walled, smooth, some with a medium guttule, IKI –, CB –, (4.7 –) 4.9–6.3 (– 6.4) × (2.2 –) 2.4–3 (– 3.1) µm, L = 5.49 μm, W = 2.66 μm, Q = 2.06 (n = 30 / 1).

Type of rot.

White rot.

Figures

Figure 4. Basidiomata of Phanerochaete citrinoalba (Holotype, Dai 26584). Scale bar: 1 cm.

Figure 5. Microscopic structures of Phanerochaete citrinoalba (Holotype, Dai 26584) a basidiospores b basidia and basidioles c vertical section of the subiculum d vertical section of the hymenium and subhymenium.