Freshwater fungi are an integral part of freshwater ecosystems.They promote the carbon cycle of the ecosystem by decomposing wood substrates.Menisporopsis is a fungal genus of Chaetosphaeriales in Sordariomycetes, which has been commonly collected from aquatic and marine environments.Most species of this genus are saprophytes.
Here, a new freshwater hyphomycetous fungus, Menisporopsis aquatica, reported from submerged rotten wood here samples collected in a stream in Zhejiang Province, south-eastern China.The new species is characterised by hyaline conidia appendiculate with 1-2 setulae at each end and synnematous conidiophores growing closely around a black central seta.Molecular phylogeny of Menisporopsis was studied using a combined two-loci socialstudiesscholar.com dataset, including the internal transcribed spacer sequences (ITS) and the nuclear ribosomal large subunit gene sequences (nrLSU).The new species is illustrated and a synopsis of the Menisporopsis species is presented in this paper.