Valsaria and the Valsariales

Abstract

More than 100 recent collections of Valsaria sensu lato mostly from Europe were used to elucidate the species composition within the genus. Multigene phylogeny based on SSU, LSU, ITS, rpb2 and tef1 sequences revealed a monophyletic group of ten species within the Dothideomycetes, belonging to three morphologically similar genera. This group could not be accommodated in any known family and are thus classified in the new family Valsariaceae and the new order Valsariales. The genus Valsaria sensu stricto comprises V. insitiva, V. robiniae, V. rudis, V. spartii, V. lopadostomoides sp. nov. and V. neotropica sp. nov., which are phylogenetically well-defined, but morphologically nearly indistinguishable species. The new monotypic genus Bambusaria is introduced to accommodate Valsaria bambusae. Munkovalsaria rubra and Valsaria fulvopruinata are combined in Myrmaecium, a genus traditionally treated as a synonym of Valsaria, which comprises three species, with M. rubricosum as its generic type. This work is presented as a basis for additional species to be detected in future.

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Acknowledgments

We sincerely thank F. Candoussau, G. Friebes, A. Gardiennet, J.-R. Guu, H.-M. Hsieh, P. Karasch, C. Lechat, M. Pélissier, F. Rappaz and J.D. Rogers for providing specimens, Y.-M. Ju for specimens, cultures and helpful comments on the manuscript, W. Gams for excursion support in Italy, F. Balao, J. Herrera and S. Tello for support and help with determination of fabaceous hosts in Spain; the fungarium curators S. Dominick and E. Roark (BPI), P. Salo (H), B. Aguirre-Hudson (K), N. Sol and G. Thijsse (L), E. Bloch (NY), B. Buyck (PC), A. Freire-Fierro and N. Phillips (PH) for loans and information of specimens, W. Till at WU for sending and managing collections; T. Merkx (CBS) for managing our cultures, G. Verkley (CBS) for providing cultures and information about strains of M. rubrum; and W. Dämon and I. Greilhuber for insertion of specimens into WU. The financial support by the Austrian Science Fund (FWF; project P25870-B16) is gratefully acknowledged. K.D. Hyde and D.Q. Dai thank the Mae Fah Luang University for the grant “Taxonomy and Phylogeny of selected families of Dothideomycetes (Grant number: 56101020032). D.Q. Dai is grateful to the Mushroom Research Foundation, Bandoo, Chiang Rai Province, Thailand, for providing postgraduate scholarship support and thanks the Mae Fah Luang University for the GMS grant.

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Jaklitsch, W.M., Fournier, J., Dai, D.Q. et al. Valsaria and the Valsariales . Fungal Diversity 73, 159–202 (2015). https://doi.org/10.1007/s13225-015-0330-0

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Keywords

  • Ascomycota
  • Dothideomycetes
  • Multigene phylogenetic analysis
  • Pyrenomycetes