Diaporthomycetidae families incertae sedis

Junewangiaceae

Junewangiaceae J.W. Xia & X.G. Zhang, Scientific Reports 7 (no. 7888): 12 (2017)

Index Fungorum number: IF818897; Facesoffungi number: FoF06602

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

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.

References:

Hyde KD, Norphanphoun C, Maharachchikumbura SSN, Bhat DJ et al. (2020) Refined families of Sordariomycetes. Mycosphere 11, 305–1059

Zhang H, Dong W, Hyde KD, Maharachchikumbura SSN et al. (2017) Towards a natural classification of Annulatascaceae-like taxa: introducing Atractosporales ord. nov. and six new families. Fungal Diversity 85, 75–110.

Luo ZL, Hyde KD, Liu JK, Maharachchikumbura SSN et al. (2019) Freshwater Sordariomycetes. Fungal Diversity. 99, 451–660.

Song HY, Zhong PA, Liao JL, Wang ZH et al. (2018) Junewangia aquatica (Junewangiaceae), a new species from freshwater habitats in China. Phytotaxa 336, 272–278.

Xia JW, Ma YR, Li Z, Zhang XG. (2017) Acrodictys-like wood decay fungi from southern China, with two new families Acrodictyaceae and Junewangiaceae. Scientific Reports 7, 7888.

 

Recent Genus

1
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