Inocybe carpinicola Y. G. Fan, W. J. Yu & P. M. He 2022, sp. nov.

Inocybe carpinicola Y.G. Fan, W.J. Yu & P.M. He sp. nov. Figs. 2–3 MycoBank: MB 845393 Holotype: — CHINA. Hainan Province: Wuzhishan City, Nansheng Town, Wuzhishan substation of Hainan Tropical Rain Forest National Park, on clay soil under Carpinus L. (1753: 998) forests, at 109°40′43′′E, 18°51′53′′N, 688 m asl., 30 July 2021, leg. W. J. Yu, P. M. He & Y. G. Fan, FYG6307 (FCAS3513); GenBank accession numbers: OP 207874 - ITS, OP 207868 - LSU, OP 227086 - rpb2. Diagnosis: — This new species can be distinguished from other taxa in the genus Inocybe by brown, smooth- to striped-fibrillose, acutely umbonate, and small-sized pileus; subdistant lamellae with 10–13 attached to the stipe; slender stipes; nodulose to sub-stellate, 7.0–10.0 × 5.5–7.5 μm size basidiospores; sub-fusiform, utriform to clavate pleurocystidia mostly