Conferticium tuberculatum L. Wang & C. L. Zhao, 2025

Wang, Lu, Zhu, Yonggao, He, Siyuan, Jabeen, Sana & Zhao, Changlin, 2025, Additions to the coriaceous families Peniophoraceae and Stereaceae (Russulales): Six novel wood-inhabiting taxa in the genera Conferticium, Gloeocystidiellum, and Peniophora from southwest China, MycoKeys 115, pp. 273-308 : 273-308

publication ID	https://doi.org/10.3897/mycokeys.115.147044
persistent identifier	https://treatment.plazi.org/id/10861E23-D144-587A-B039-D249409D0FB9
treatment provided by	MycoKeys by Pensoft
scientific name	Conferticium tuberculatum L. Wang & C. L. Zhao
status	sp. nov.

Treatment

Conferticium tuberculatum L. Wang & C. L. Zhao sp. nov.

Figs 5 View Figure 5 , 6 View Figure 6

Typification.

China. • Yunnan Province: Zhaotong, Daguan County, Huanglianhe Scenic Spot , GPS coordinates: 27°72'N, 103°92'E, altitude: 1480 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 3 Jul 2023, CLZhao 29376, GenBank: ITS = PQ 166602, nLSU = PQ 295861 ( SWFC!) .

Diagnosis.

It is characterized by coriaceous basidiomata with tuberculate hymenophore surface, a monomitic hyphal system with simple-septa generative hyphae, and ellipsoid to broadly ellipsoid basidiospores.

Etymology.

Tuberculatum (Lat.): refers to the species having the tuberculate basidiomata.

Description.

Basidiomata. Annual, resupinate, closely adnate, coriaceous, without odor or taste when fresh, up to 10 cm long, 3 cm wide, and 400 μm thick. Hymenophore tuberculate, white when fresh, white to cream upon drying. Sterile margin narrow, white to cream, up to 1 mm.

Hyphal system. Monomitic; generative hyphae simple-septate, colorless, thin-walled, smooth, rarely branched, interwoven, 3–3.5 µm in diameter, IKI +, CB –; tissues unchanged in KOH.

Hymenium. Gloeocystidia of two types: (1) fusiform, often with an apical appendix, flexuous, colorless, thin-walled, smooth, 34–46 × 7–9 µm; (2) clavate, colorless, thin-walled, smooth, 36–39 × 7–8 µm. Basidia subcylindrical to subclavate, slightly flexuous, with a basal simple septum and four sterigmata, 33.5–43 × 8–10 µm; basidioles numerous, in shape similar to basidia but smaller.

Spores. Basidiospores ellipsoid to broadly ellipsoid, colorless, thin-walled, smooth, IKI +, CB –, (8 –) 8.5–11 × (5.5 –) 6–7.5 µm, L = 9.69 µm, W = 6.66 µm, Q = 1.46–1.58 (n = 60 / 2).

Additional specimen examined (paratype).

China. • Yunnan Province: Zhaotong, Daguan County, Huanglianhe Scenic Spot , GPS coordinates: 27°72'N, 103°92'E, altitude: 1480 m asl., on the fallen angiosperm branch, leg. C. L. Zhao, 3 Jul 2023, CLZhao 29390, GenBank: ITS = PQ 166603, nLSU = PQ 295862 ( SWFC!) .