Aquasubmersa mircensis Huang Zhang & K.D. Hyde, Cryptog. Mycol. 33(3): 340 (2012). Fig. 50

MycoBank number: MB 800876; Index Fungorum number: IF 800876; Facesoffungi number: FoF 07119;

Saprobic on submerged wood in a freshwater stream. Sexual morph: undetermined. Asexual morph: Conidiomata 150–250 µm diam., 100–200 µm high, dark brown to black, pycnidial, subperidermal, solitary, semi-immersed, subglobose to ellipsoidal, thick-walled, unilocular, glabrous, ostiolate. Conidiomatal wall up to 20 µm thick, consisting of textura angularis with cells brown to hyaline, thick-walled. Conidiophores arising from inner layer cells of conidiomata, absent or occasionally present, subcylindrical to doliiform, unbranched, septate. Conidiogenous cells 10–15×4–7 µm, hyaline, holoblastic, subcylindrical to lageniform, determinate, discrete or integrated, thick-walled, smooth. Conidia 16–21×8–11 µm (x̄ =18×9 µm; n=20), hyaline, ellipsoidal, rounded at both ends or sometimes with papillate base, smooth, thick-walled, guttulate.

Material examined – Thailand, Chiang Mai, Mushroom Research Centre, on  submerged wood, 21 April 2011, Huang Zhang m3 (MFLU 11-1001, holotype).

Figure 50 Aquasubmersa mircensis (MFLU 11-1001, holotype). a Pycnidium on wood surface. b Section of pycnidium. c Peridium. d Peridium with conidiogenous cell. e, f Conidiogenous cells. g Conidiogenous cells with conidia. h−j Conidia. Scale bars: b = 100 µm, c, d, f, g = 15 µm, e, h−j = 10 µm.