Vaginatispora armatispora (K.D. Hyde, Vrijmoed, Chinnaraj & E.B.G. Jones) Wanas., E.B.G. Jones & K.D. Hyde
Index Fungorum number: IF 819870; Facesoffungi number: FoF 05060
Saprobic on submerged decaying wood in freshwater and marine habitats. Sexual morph: Ascomata 240–340 μm diam. 270–335 μm high, ( = 300 × 288 μm, n = 5), scattered, immersed or semi-immersed, globose to subglobose, black, base flatted, coriaceous to carbonaceous. Ostiole black, elongated, crest-like, central, with hyaline periphyses. Peridium 25–40 μm wide, composed of several pale brown to brown cells of textura angularis, cells towards the inside hyaline to pale brown, at the outside, darker, somewhat flattened, fusing and with the host tissues. Hamathecium comprising 1.5–2 μm wide, septate, hyaline pseudoparaphyses composing situated between and above the asci, embedded in a gelatinous matrix. Asci 82–115 × 13.5–15.7 μm ( = 108 × 14.3 μm, n = 20), 8- spored, bitunicate, fissitunicate, cylindrical-clavate, short pedicellate, apically rounded with an ocular chamber, hyaline. Ascospores 22–30 × 5.5–8 μm ( = 25.8 × 6.7 μm, n = 30), fusiform, with obtuse ends, hyaline when young, pale brown at mature, smooth-walled, 1-septate, strongly constricted at the septum, distinct large guttules, mostly 6-guttules, rarely 4-guttules, 2–3-guttules in each cells, surrounded by a narrow mucilaginous sheath, with distinct hyaline appendages at both ends. Asexual morph: Undetermined. (Descriptions from Bao et al. 2019)
Material examined: THAILAND, Sai Khu waterfall, Prachuap Khiri Khan, on submerged decaying wood, August 2017, V. Kumar, B29, (DLU B29), living culture, MFLUCC 18–0213.
Notes: Vaginatispora armatispora was previously introduced as Massarina armatispora by Hyde et al. (1992), that was collected from Mangroves in India and China. The placement of this species was updated by Wanasinghe et al. (2016) and, transferred to Vaginatispora based on both phylogeny and morphology.