Xylolentia aseptata J. Yang, Jian K. Liu & K.D. Hyde, sp. nov.

MycoBank number: MB 559827; Index Fungorum number: IF 559827; Facesoffungi number: FoF 12838;

Etymology: referring to the aseptate conidia.

Holotype: HKAS 112647

Saprobic on decaying twig in a freshwater stream. Asexual morph: Colonies on wood effuse, hairy, scattered or aggregated, brown, with glistening masses of conidia at the apex. Mycelium partly superficial, partly immersed, composed of septate, smooth, brown to hyaline hyphae. Conidiophores macronematous, mononematous, erect, straight, or slightly flexuous, solitary or aggregated in small groups, cylindrical, smooth, septate, unbranched, mid to dark brown, becoming pale brown or subhyaline at the apex, 95–215 × 3.6–7.3 µm ( = 137 × 5 µm, n = 20). Conidiogenous cells polyblastic, integrated, elongating percurrently, terminal, determinate, cylindrical to cylindrical-lageniform, pale brown near the base, subhyaline to hyaline towards the apex, 18.5–26 × 2.8–4.8 µm, apex thin-walled, sympodially extending. Conidia acrogenous, aggregated in slimy masses, ellipsoidal to reniform, aseptate, smooth, hyaline, 2.8–5.3 × 1.8–3 µm ( = 4 × 2.3 µm, n = 50), guttulate, thin-walled. Sexual morph: Undetermined.