Jennwenomyces, a new hyphomycete genus segregated from Belemnospora, producing versicolored phragmospores from percurrently extending conidiophores

Jennwenomyces, a new hyphomycete genus segregated fromBelemnospora, is proposed to accommodateBelemnospora navicularis, based on morphological and molecular data.Jennwenomyces navicularisis described and illustrated based on two specimens collected on decaying culms ofMiscanthus floridulussubmerged in freshwater streams of Alishan area, Chiayi County, Taiwan.Jennwenomycesproduces dematiaceous, versicolored, straight, navicular to cylindrical euseptate phragmospores borne on multiple percurrently extending, annellate conidiophores. Conidial secession is schizolytic, leaving a protuberant hilum at the base of the conidium. The genus is compared withBelemnosporaand other morphologically similar hyphomycete genera with percurrent conidiophores such asEndophragmiella,Junewangia,Repetophragma, andSporidesmiella. Phylogenetic analysis inferred from nuclear ribosomal DNA sequence data placedJennwenomyceswithin the Sordariomycetes, clustered with species ofDictyosporella,Junewangia, andSporidesmiellain the family Junewangiaceae.