Clohesyomyces aquaticus K.D. Hyde, Aust. Syst. Bot. 6(2): 170 (1993)
Saprobic on submerged wood in a freshwater stream. Sexual morph: undetermined. Asexual morph: Conidiomata 150–250 µm diam., 200–250 µm high, dark brown to black, pycnidial, subperidermal, solitary to gregarious, semi-immersed, globose to subglobose, unilocular, thick-walled, glabrous, ostiolate. Ostiole single, papillate, circular, centrally located. Conidiomatal wall 20–40 µm wide, consisting of brown to pale brown, thick-walled cells of textura angularis gradually merging with textura porrecta. Conidiophores reduced to conidiogenous cells. Conidiogenous cells 6–15 × 2–10 µm, hyaline, phialidic, cylindrical to subcylindrical or lageniform, determinate, thick- and smooth-walled, with marked periclinal thickening at collarette zone. Conidia 10–23 × 7–10 µm (x = 17 × 8 µm; n = 30), hyaline, ellipsoidal, rounded at both ends, or occasionally truncate at base, 1-septate, slightly constricted at septum, straight or slightly curved, thick-walled, smooth, guttulate, surrounded by an irregular mucilaginous sheath.
Material examined: Thailand, Chiang Mai, Doi Inthanon, on submerged wood, 16 November 2010, Huang Zhang, d66 (MFLU 11–1112), d66 (MFLU 11–1114).
Clohesyomyces aquaticus (MFLU 11–1112) a Herbarium specimen. b, c Appearance of black conidiomata on the host. d Vertical section of conidioma. e, f Section of peridium. g–j Conidiogenous cells and developing conidia. k–n Conidia. Scale bars d = 100 µm, e = 50 µm, f = 20 µm, g–n =10 µm.
Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.