Kirschsteiniothelia dushanensis L.L. Liu, J. Yang & Z.Y. Liu, sp. nov.

MycoBank number: MB 559444; Index Fungorum number: IF 559444; Facesoffungi number: FoF 12777;

Etymology: referring to the collecting location at Dushan District in China.

Holotype: GZAAS 20-0310

Saprobic on submerged decaying wood. Asexual morph: Colonies on wood effuse, dark brown, hairy, glistening. Mycelium mostly immersed, composed of septate, smooth-walled, brown to hyaline hyphae. Conidiophores macronematous, mononematous, erect, straight or slightly curved, cylindrical, slightly narrower towards the apex, rounded and darkened at the apex, verrucose, septate, unbranched, dark brown, (120–)160.5–307 µm long, 6.5–13 μm wide near the base. Conidiogenous cells monoblastic, integrated, terminal, determinate, sometimes elongating percurrently, cylindrical or doliiform, brown, darkened at the apex and proliferating portion, 9–26(–45) × 3–7 μm. Conidia acrogenous, solitary, rostrate, 5–11-septate, with distoseptate, fusiform lower part and euseptate, narrower cylindrical upper part, olivaceous brown to soot brown, pale brown or subhyaline at the apex, 62–81 ×12.5–18 μm ( = 77 × 16 μm, n=20), smooth-walled, truncate and darkened at the base, rarely proliferating, sometimes with a mucilaginous sheath surrounding the tail-like upper part or the apex. Sexual morph: Undetermined.