Phialoturbella aquilunata J. Yang, Jian K. Liu & K.D. Hyde, in Yang, Liu, Jones, Hyde, Liu, Bao, Liu, Li, Shen, Yu & Liu, Fungal Diversity 119: 134 (2023)

Index Fungorum number: IF 559654; MycoBank number: MB 559654; Facesoffungi number: FoF 12816;

Etymology – referring to the aquatic habitat of the fungus and the lunate conidia.

Holotype – HKAS 112572

Saprobic on decaying twig in a freshwater stream. Asexual morph: Colonies effuse, hairy, scattered, or aggregated, brown, with glistening conidial masses. Mycelium composed of mostly immersed, hyaline to pale brown, septate hyphae. Conidiophores macronematous, mononematous, erect, straight, or slightly flexuous, cylindrical, narrower at the apex, smooth, septate, sometimes constricted at the septa, unbranched, brown, pale brown at the upper part, 38–83 × 2.7–4.2 µm (x̅ = 57 × 3.4 µm, n = 25). Conidiogenous cells monophialidic, integrated, sometimes percurrently proliferating, terminal, determinate, subcylindrical, pale brown to subhyaline, 23–38 × 3–4.5 µm (x̅ = 30 × 3.7 µm, n = 20), with a funnel-shaped collarette 2.3–4.3 µm wide, 1.4–2.2 µm high. Conidia acrogenous, aggregated in slimy masses, lunate, gently curved, aseptate, smooth, guttulate, hyaline, 15–24 × 3.8–5.3 µm (x̅ = 20.3 × 4.5 µm, n = 40), thin-walled, with a short and small tip at both ends. Sexual morph: Undetermined.