Thailandiomyces bisetulosus Pinruan et al.
Index Fungorum number: IF511589
Asexual morph: Ascomata 275–325 µm diameter, partially immersed to superficial, globose, black, coriaceous, ostiolate, scattered to gregarious. Neck up to 1 mm long, 100 µm diam., periphyses with short hyaline cells, central, cylindrical, black. Peridium up to 45 µm thick, composed of one stratum of compressed cells, of textura angularis, black to the outside, brown inwardly. Paraphyses present but deliquescent, irregular in width, up to 5–6.5 µm wide, rarely septate, tapering towards apices, embedded in a mucilaginous matrix. Asci 65–75 × 6–7.5 µm (x̄ = 67.5 × 6.8 µm, n = 20), 8-spored, cylindrical to clavate, unitunicate, apedicellate, free-floating, apically truncate, with a Jsubapical ring, 2 × 2 µm. Ascospores 20–25 × 3.5–5 µm (x̄ = 22.9 × 4 µm, n = 30), overlapping 2-seriate, fusoid, straight or curved, hyaline, 1-septate, smoothwalled, with 4-5 large guttules, with bipolar spine-like appendages, usually bent laterally, 5–7.5 µm long, 1–1.5 µm diam. Asexual morph: Craspedodidymum licualae. Colonies on natural substratum effuse, black. Mycelium superficial. Conidiophores macronematous, mononemataus, erect, brown, paler toward the apex, straight or flexuous, smooth, but rough at the apex. Conidiogenous cells integrated, terminal, 20–27.5 × 6.2–7.5 µm, enteroblastic and monophialidic. Conidia 13.7–17.5 × 7.5–10 µm, obovoid or ellipsoid, broadly rounded at both ends, brown, papillate at the basal end, O-septate.
Specimen examined: THAILAND, on submerged trunk of Licuala longicalycata