Junewangiaceae J.W. Xia & X.G. Zhang, Scientific Reports 7 (no. 7888): 12 (2017)
MycoBank number: MB 818897; Index Fungorum number: IF 818897; Facesoffungi number: FoF 06602; 9 species.
Saprobic on terrestrial or freshwater habitats. Sexual morph: Ascomata scattered or solitary, immersed with neck superficial, uniloculate, globose, subglobose or ellipsoidal, glabrous, brown, coriaceous. Ostiole long, cylindrical, periphysate. Peridium comprising several layers of brown, thick-walled, compressed cells of textura porrecta. Paraphyses numerous, cylindrical, hyaline, septate, unbranched, persistent. Asci 8-spored, unitunicate, long cylindrical, with a tapering pedicel, apically rounded, with an indistinct, J-, apical ring. Ascospores fusiform, hyaline, 3-septate, with filamentous bipolar appendages. Asexual morph: Hyphomycetous. Colonies on natural substrate effuse, brown. Mycelia partly superficial, partly immersed, composed of hyaline to brown, branched, septate hyphae. Conidiophores micronematous or macronematous, when macronematous, erect, cylindrical, unbranched, straight or slightly flexuous, thick-walled, septate, brown, paler towards the apex. Conidiogenous cells blastic, integrated, terminal, cylindrical, subhyaline to brown, smooth or verrucose. Conidia acrogenous, solitary, dry, smooth, ellipsoidal, oval, clavate or obovoid, brown to dark brown (adapted from Xia et al. (2017).
Type genus – Junewangia W.A. Baker & Morgan-Jones
Notes – Junewangiaceae was established by Xia et al. (2017) to accommodate a single genus, Junewangia, based on combined of LSU, SSU, ITS and tub2 sequence data. Although Dictyosporella and Junewangia formed a monophyletic clade with strong support, Song et al. (2018) did not transfer Dictyosporella to Junewangiaceae. Luo et al. (2019) accepted three genera, i.e. Dictyosporella, Junewangia and Sporidesmiella in Junewangiaceae in their comprehensive study of freshwater Sordariomycetes. However, in our phylogenetic analyses, Acrodictyaceae and Junewangiaceae and Sporidesmiella formed a monophyletic clade, while Acrodictyaceae and Junewangiaceae are sister groups. Therefore, we suggest Junewangiaceae contains Dictyosporella and Junewangia, while Sporidesmiella is treated as Diaporthomycetidae genus incertae sedis.