Clohesyomyces

Clohesyomyces K.D. Hyde, Aust. Syst. Bot. 6(2): 170 (1993)

Citation when using this entry, Chen C. et al. in prep. – An updated monograph of Coelomycetes, Mycosphere

Index Fungorum, Facesoffungi number, MycoBank, GenBank           

Classification: Lindgomycetaceae, Pleosporales, Dothideomycetes, Ascomycota, Fungi

Saprobic on submerged wood in a freshwater stream or endophytic on plants in freshwater habit. The sexual morph is undetermined. The asexual morph is characterised by the semi-immersed pycnidial conidiomata, which are dark brown to black, subperidermal, separate to aggregated, unilocular, glabrous, and globose to subglobose. The ostiole is papillate, single, circular and located in the center. The conidiomatal wall is comprised of textura angularis to textura porrecta, thick-walled and brown to pale brown cells. Conidiophores are reduced to conidiogenous cells. Conidiogenous cells are phialidic, thick- and smooth-walled, determinate, cylindrical to subcylindrical or lageniform, hyaline, and with a collarette. Conidia are hyaline, thick- and smooth-walled, guttulate, 1-septate, slightly constricted at septum, ellipsoidal, straight or slightly curved, rounded at both ends, sometimes base truncate, and enclosed by an irregular mucilaginous sheath (Li et al. 2020, Hyde 1993).

Type species: Clohesyomyces aquaticus K.D. Hyde, Aust. Syst. Bot. 6(2): 170 (1993)

Notes: Clohesyomyces was introduced by Hyde (1993) based on C. aquaticus as the type species, which was isolated from submerged wood in a freshwater stream. Zhang et al. (2012) confirmed that C. aquaticus belongs to Lindgomycetaceae (Pleosporales) based on LSU and SSU sequence data. The second species, C. symbioticus was isolated from in roots of Persicaria amphibia (Polygonaceae) growing in standing water (Arnold & Sandberg, 2021). Currently, there are two Clohesyomyces species listed in Species Fungorum (September 2024). There are more than 500 sequence data available for Clohesyomyces in GenBank (September 2024). The updated taxonomic treatment of this genus is Lindgomycetaceae, in Pleosporales (Dothideomycetes) (Wijayawardene et al. 2022).

For all accepted species: see Species Fungorum, search Clohesyomyces.