Uvarisporella aquatica J. Yang, Jian K. Liu & K.D. Hyde, sp. nov.

MycoBank number: MB 559710; Index Fungorum number: IF 559710; Facesoffungi number: FoF 12824;

Etymology: referring to the aquatica habitat of the fungus.

Holotype: HKAS 112622

Saprobic on decaying wood. Asexual morph: Colonies on natural woody substrates effuse, scattered, brown, glistening, with masses of conidia at the apex of conidiophores. Mycelium mostly immersed, composed of septate, smooth, pale brown to hyaline hyphae. Conidiophores macronematous, mononematous, erect, straight, or slightly curved, solitary, cylindrical, smooth, septate, unbranched, mid brown to dark brown, often paler at the apex, 60–300 µm long, 4.9–9.3 µm wide near the base ( = 155 × 7.3 µm, n = 20). Conidiogenous cells polyblastic, integrated, terminal, determinate, brown to pale brown, cylindrical or swollen ellipsoidal after regenerating, when percurrently proliferating, the apex becoming swollen, new conidiogenous cells formed enteroblastically then breaking through the outer wall which often remains the lower flared fragments that not attached to the new conidiogenous cell, with up to three proliferations observed. Conidia acrogenous, clustered in masses, mostly globose to subglobose, rarely obovoid, 1-distoseptate, verruculose, pale brown or grayish green when young, olivaceous brown to mid brown when mature, 19.8–25 × 18.8–23.5 µm ( = 22.6 × 21.3 µm, n = 30), guttulate, thick-walled, truncate or concave at the base with a minute marginal frill. Sexual morph: Undetermined.