Distoseptispora saprophytica
Distoseptispora saprophytica
W. Dong, H. Zhang & K.D. Hyde, Mycosphere 12 (1): 38 (2021)
Classification: Ascomycota-Pezizomycotina-Sordariomycetes-Distoseptisporales- Distoseptispora - Distoseptispora
Host species: Corypha umbraculifera (Xiong et al. 2025)
Known distribution: China (Xiong et al. 2025), Thailand (Dong et al. 2021).
IF Number: IF558029 Mycobank Number: 558029 FOF Number: FoF 09550
Description
Saprobic on dead primary rachis of Corypha umbraculifera. Asexual morph: Hyphomycetous. Colonies on natural substrate superficial, effuse, hairy, gregarious, brown. Mycelium partly immersed, partly superficial on host substrate, composed of septate, branched, pale brown, thin-walled hyphae. Conidiophores 25–48 × 9–10 μm (x̅ = 36.6 × 9.3 μm, n = 15), macronematous, mononematous, erect, cylindrical, straight or slightly flexuous, or occasionally sharply curving near the base, septate, unbranched, brown, thin-walled, smooth. Conidiogenous cells 9–10.5 × 6–8 μm (x̅ = 9.6 × 6.9 μm, n = 15), polytretic, integrated, terminal and intercalary, determinate, subcylindrical, brown, smooth. Conidia 60–120 × 17–23 μm (x̅ = 93.9 × 19.6 μm, n = 25), acrogenous, solitary, dry, thick-walled, smooth, subcylindrical to obclavate, straight or curved, 3–6-distoseptate, slightly constricted at septa, olivaceous to brown, rounded at apex, with an inconspicuous truncate base and faintly pigmented scar. Sexual morph: Not observed.
Culture conditions: Colonies on PDA, after 2 weeks reaching 8–9 cm diam., at 25°C, white-brown from above, black from below, surface rough, dry, with dense mycelium, raised, entire at edge; reverse dark brown to black.
Distoseptispora saprophytica (MHZU 24-0470, new host record). a, b Colonies on the substrate surface. c–e Conidiophores with conidiogenous cells bearing conidia. f–i Conidia. j Germinating conidium. k The front of culture on PDA at 25℃ and the reverse of culture on PDA at 25℃. Scale bars: c–e = 20 µm, f–j = 10 µm.
Reference
Dong W, Hyde KD, Jeewon R, Doilom M, Yu XD, Wang GN, Liu NG, Hu DM, Nalumpang S, Zhang H (2021) Towards a natural classification of annulatascaceae-like taxa II: introducing five new genera and eighteen new species from freshwater. Mycosphere 12(1):1–88. https://doi.org/10.5943/mycosphere/12/1/1
Xiong, Y. R., Lu, L., Mapook, A., Maharachchikumbura, S. S. N., McKenzie, E. H. C., Kevin, D. H., Manawasinghe, I. S. (2025) Fungal Safari on Palm Trees: New Discoveries from East Asia and 1990-2025 Years of Global Records [Manuscript preparation]. Fungal Diversity.
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