Gamsomyces longisporus (M.B. Ellis) Hern.-Restr. & Réblová, Stud. Mycol. 95: 449 (2020)

MycoBank number: MB 834448; Index Fungorum number: IF 834448; Facesoffungi number: FoF 12802;

Basionym: Bactrodesmium longisporum M.B. Ellis, More Dematiaceous Hyphomycetes: 68. 1976.

Synonym: Stigmina longispora (M.B. Ellis) S. Hughes, New Zealand Journal of Botany 16: 353. 1978.

Pseudobactrodesmium chiangmaiensis X.D. Yu, W. Dong & K.D. Hyde, Frontiers in Microbiology 11(no. 565): 5 (2020)

Saprobic on decaying submerged wood in freshwater habitats. Asexual morph: Conidiomata on natural substrate sporodochial, superficial, scattered, dark brown, with glistening conidial masses at apex. Mycelium mostly immersed, composed of septate, smooth, pale brown hyphae. Conidiophores semi-macronematous to macronematous, fasciculate, erect, straight or slightly flexuous, cylindrical, smooth, septate, unbranched or branched, mid brown, often paler towards the apex, tightly compact forming short synnemata, thick-walled, (10–)30.5–65 × 2–3 µm ( = 40 × 2.5 µm, n = 20). Conidiogenous cells monoblastic, integrated, terminal or intercalary, cylindrical or slightly swollen, pale brown to subhyaline. Conidia acrogenous, narrowly fusiform, elongated, straight or slightly flexuous, truncate at the base, rounded to subulate at the apex, 14–21-septate, smooth, guttulate, pale greenish brown to pale brown, becoming hyaline in the apical 1-2 cells, 70–112 × 5–7.5 µm ( = 87 × 6.5 µm, n = 30), often with a globose mucilaginous cap apically (12–16 µm diam.) at the apex. Sexual morph: Undetermined.