Distoseptispora lancangjiangensis H.W. Shen, H.Y. Su, K.D. Hyde & Z.L. Luo, sp. nov.
Index Fungorum number: IF558555
Facesoffungi number: FoF 09994
Etymology. Referring to the collecting location, Lancangjiang River in China.
Description. Saprobic on submerged decaying wood in freshwater habitats. Sexual morph: Undetermined. Asexual morph: Colonies effuse, brown to dark, hairy, glistening. Mycelium partly superficial, partly immersed in the substratum, composed of hyaline to pale brown, septate, branched hyphae. Conidiophores 144–204 × 5–6 μm ( = 175 × 6 μm, n = 20) macronematous, mononematous, solitary or aggregated at the base, cylindrical, straight or slightly flexuous, 6–11-septate, dark brown, paler and rounded at apex. Conidiogenous cells 12–24 × 4–5 μm ( = 18 × 5 μm, n = 20) integrated, terminal, monoblastic, cylindrical, brown. Conidia 64–84 × 9–10 μm ( = 74 × 10 μm, n = 20), acrogenous, solitary, narrowly obclavate or obspathulate, tracted at base, tapering towards apex, 3–10-euseptate, brown to dark brown, becoming paler or hyaline towards apex, guttulate, with a darkened scar at base, smooth-walled.
Figure 2. Distoseptispora lancangjiangensis (KUN-HKAS:112712, holotype) A Colonies on the substratum B Conidiophores with conidia C-E Conidiophores F, G Conidiogenous cells H Conidiogenous cells with conidia I-Q Conidia R Germinating conidium S, T Culture on PDA. Scale bars:50 μm (B-E), 20 μm (F-R).