title: Hidden diversity inThyridariaand a new circumscription of theThyridariaceae.
abstract: A multigene analysis of a combined ITS-LSU-SSU-rpb2-tef1sequence data matrix was applied to infer the phylogenetic position of the genusThyridariain thePleosporales. The generic type ofThyridaria,T. broussonetiae(syn.T. incrustans), is situated in a clade currently namedRoussoellaceae, which becomes a synonym ofThyridariaceae. However,Thyridaria rubronotatadoes not belong to this clade, but is here recognised asCyclothyriella rubronotatain its own familyCyclothyriellaceae. TheThyridariaceaecontain the generaThyridaria,Roussoella,Roussoellopsis,Neoroussoellaand the new genusParathyridaria.Roussoella acaciaeis combined inThyridariaandRoussoella percutaeneainParathyridaria.Ohleria modestaand an additional new thyridaria-like genus,Hobus, are found to represent isolated lineages with unresolved phylogenetic affinites within the Pleosporales. ForOhleriathe new familyOhleriaceaeis established.Melanomma fuscidulumbelongs toNigrograna, and three new species are described in this genus. A strain namedBiatriospora marinaclusters withNigrograna. Based on the newly recognised species inNigrograna, morphology and ecology do in no way correlate among these genera, therefore we erect the new familyNigrogranaceaeforNigrogranaand recommend to discontinue the use of the family nameBiatriosporaceaeuntil fresh material ofB. marinabecomes available for sequencing.
authors.affiliation: Institute of Forest Entomology Forest Pathology and Forest Protection, Dept. of Forest and Soil Sciences, BOKU-University of Natural Resources and Life Sciences, Hasenauerstraße 38, 1190 Vienna, Austria; Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030 Wien, Austria.
authors.forename: W M
authors.initials: WM
authors.lastname: Jaklitsch
authors.affiliation: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030 Wien, Austria.
authors.forename: H
authors.initials: H
authors.lastname: Voglmayr
keywords: Ascomycota; Cucurbitaria broussonetiae Sacc.; Cyclothyriella Jaklitsch & Voglmayr; Cyclothyriella rubronotata (Berk. & Broome) Jaklitsch & Voglmayr; Cyclothyriellaceae Jaklitsch & Voglmayr; Cyclothyrium; Dothideomycetes; Hobus Jaklitsch & Voglmayr; Hobus wogradensis Jaklitsch & Voglmayr; Melanomma; Melogramma rubronotatum Berk.; N. norvegica Jaklitsch & Voglmayr; N. obliqua Jaklitsch & Voglmayr; Nigrograna fuscidula (Sacc.) Jaklitsch & Voglmayr; Nigrograna mycophila Jaklitsch, Friebes & Voglmayr; Nigrogranaceae Jaklitsch & Voglmayr; Ohleriaceae Jaklitsch & Voglmayr; Parathyridaria Jaklitsch & Voglmayr; Parathyridaria percutanea (S.A. Ahmed, D.A. Stevens, W.W.J. van de Sande & G.S. de Hoog) Jaklitsch & Voglmayr; Parathyridaria ramulicola Jaklitsch, Fourn. & Voglmayr; Phylogenetic analysis; Pleosporales; Sphaeria fuscidula Sacc.; Thyridaria acaciae (Crous & M.J. Wingf.) Jaklitsch & Voglmayr