Hermann Voglmayr, Jacques Fournier, Walter M Jaklitsch
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Stigmatodiscus pruni, a new dothideomycete with hysteriform ascomata.
Stigmatodiscus pruni (Stigmatodiscaceae, Stigmatodiscales) is described and illustrated from corticated dead twigs of Prunus spinosa collected in Austria and France. It is characterised by hysteriform ascomata with two lateral black lips, which are erumpent through the periderm of the host, and a black disc in combination with two-celled, asymmetric brown verruculose ascospores with a distinct sheath. Phylogenetic analyses of a multigene matrix containing a representative selection of Dothideomycetes from four genes (nuc 18S rDNA, nuc 28S rDNA, rpb2 and tef1) revealed a highly supported placement within Stigmatodiscales as sister species to Stigmatodiscus enigmaticus. Micromorphology of the sexual and asexual morph matches the genus Stigmatodiscus, except for the hysteriform shape of the ascomata and the two-celled ascospores.
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Sydowia publishes reports of original research relevant to fungal taxonomy, systematics, evolution, structure, development, ecology, pathology (plants, animals, humans), and biotechnological applications. Reviews are published in areas of particular interest and current importance, but authors should consult the Editor before submitting a review manuscript. One volume of the journal, comprising two issues, is published each year. The official journal language is English. Submission of a manuscript to the Executive Editor implies that the results have not been previously published or simultaneously submitted to any other scientific journal, except as an abstract. When the authors are in doubt as to the suitability of their papers for Sydowia, the Editor of the journal should be consulted before submission of the manuscript.
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