Diaporthomycetidae families incertae sedis » Conlariaceae


Riomyces Ferrer et al.

Index Fungorum number: IF561099


Sexual morph: Ascomata on submerged wood, immersed to erumpent in the substrate, globose to subglobose, membranous, black, ostiolate. Neck short, dark brown. Hamathecium composed of globose, hyaline, deliquescent cells. Asci unitunicate, broadly cylindrical, thin-walled, short-pedicellate, lacking an apical pore and other apical structures, eight-spored, uniseriate. Ascospores ellipsoidal-fusiform, hyaline, septate, not constricted at septa, thick-walled, surrounded by a gelatinous sheath. Asexual morph: Undetermined


Notes: Riomyces was introduced by Ferrer et al. (2012) to accommodate a single species R. rotundus, based on morphology and phylogenetic analyses of LSU sequence data. It was found on submerged decaying wood in freshwater in Costa Rica


Type species: Riomyces rotundus A. Ferrer, A.N. Mill., Sarmiento & Shearer



Zhang H, Dong W, Hyde KD, Maharachchikumbura SSN, Hongsanan S, Bhat DJ, Al-Sadi AM, Zhang D (2017a) Towards a natural classification of Annulatascaceae-like taxa: introducing Atractosporales ord. nov. and six new families. Fungal Divers 85:75–110

Ferrer A, Miller AN, Sarmiento C, Shearer CA. (2012) Three new genera representing novel lineages of Sordariomycetidae (Sordariomycetes, Ascomycota) from tropical freshwater habitats in Costa Rica. Mycologia 104, 865–879.


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