Ellisembia aquirostrata J. Yang, Jian K. Liu & K.D. Hyde, sp. nov.

MycoBank number: MB 559651; Index Fungorum number: IF 559651; Facesoffungi number: FoF 12809;

Etymology: referring to the aquatic habitat of the fungus and rostrate conidia.

Holotype: HKAS 112610

Saprobic on submerged decaying wood. Asexual morph: Colonies on wood effuse, hairy, dark brown, scattered or in small groups, glistening. Mycelium mostly immersed. Conidiophores macronematous, mononematous, erect, solitary or caespitose, straight or slightly flexuous, cylindrical, becoming slightly narrower towards the apex, smooth-walled, 1–3-septate, unbranched, dark brown, 35–65.5 × 3.7–5.8 µm ( = 50 × 4.7 µm, n = 25. Conidiogenous cells monoblastic, integrated, terminal, determinate, cylindrical, lageniform or ampulliform, pale brown to brown, 9–28.5 × 3.7–5.5 µm, truncate at the apex, rarely with percurrent proliferations. Conidia acrogenous, fusiform to obclavate, rostrate, subhyaline to pale olivaceous green when young, pale brown to brown when mature, apical cells extending into pale brown to hyaline, filiform appendages, basal cell conical-truncate, darker than other cells, 6–8-septate, 41–93 × 10–14.5 µm ( = 60 × 12.5 µm, n = 25), smooth-walled, with a central darkened pore at the septa when mature, sometimes with conidial percurrently proliferations. Sexual morph: Undetermined.