Neomyrmecridium naviculare J. Yang, Jian K. Liu & K.D. Hyde, sp. nov.

MycoBank number: MB 559768; Index Fungorum number: IF 559768; Facesoffungi number: FoF 12830;

Etymology: referring to the navicular conidia

Holotype: HKAS 124639

Saprobic on decaying twig in a freshwater stream. Asexual morph: Colonies on wood effuse, hairy, scattered or aggregated, dark brown, glistening. Mycelium mostly immersed, composed of septate, smooth, brown to hyaline hyphae. Conidiophores macronematous, mononematous, erect, lower part straight, upper part flexuous, cylindrical, smooth-walled, septate, unbranched, brown, pale brown to subhyaline at the upper part, 100–200 × 4–5.6 µm ( = 158 × 4.8 µm, n = 15). Conidiogenous cells polyblastic, integrated, terminal, becoming intercalary, determinate, sympodial, denticulate, flexuous, brown to subhyaline. Conidia acropleurogenous, navicular to fusiform, tapering to a hilum towards the base, obtuse at the apex, (1–)3–septate, verrucose, hyaline when young, pale brown when mature, paler at both ends, 16.5–24 × 5.6–7.5 µm ( = 19.6 × 6.5 µm, n = 45), guttulate, thin-walled, with a thin mucilaginous sheath at the middle part. Sexual morph: Undetermined.