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Revision of “Septonema ochraceum” revealed three new species of Venturiaceae and Herpotrichiellaceae

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Abstract

Survey of seven strains determined as Septonema ochraceum (Dothideomycetes, inc. sed.) isolated from pine litter or obtained from public collections revealed three new species, Fusicladium cordae, F. sicilianum (Venturiaceae), Cladophialophora matsushimae (Herpotrichiellaceae) and a cryptic species morphologically identical to Devriesia americana (Teratosphaeriaceae), but phylogenetically distinct. Morphological survey and phylogenetic analysis using nucleotide sequence data from the nuclear ribosomal subunit genes indicate a close relationship within three species colonising pine litter needles, F. cordae, F. pini and F. ramoconidii. F. sicilianum is most related to F. rhodense. C. matsushimae represents a species belonging to one of the lineages of the polyphyletic genus Cladophialophora. None of the strains observed can be classified morphologically as S. ochraceum, of which the type material does not exist.

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Acknowledgements

I am indebted to Dr. Keisuke Matsushima for sending me the MFC-1P384 culture, Dr. Miroslav Kolařík for valuable comments on this manuscript and Dr. Zdeňek Pouzar for checking the Latin diagnoses. This study was supported by the Grant Agency of the Academy of Sciences of the Czech Republic, project Nr. KJB601110718 and the Grant Agency of the Czech Republic, project Nr. 206/09/P295.

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  1. Department of Botany, Charles University in Prague, Faculty of Science, Benátská 2, 128 44, Prague, Czech Republic

    Ondřej Koukol

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Correspondence to Ondřej Koukol.

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Koukol, O. Revision of “Septonema ochraceum” revealed three new species of Venturiaceae and Herpotrichiellaceae . Mycol Progress 9, 369–378 (2010). https://doi.org/10.1007/s11557-009-0645-x

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  • DOI: https://doi.org/10.1007/s11557-009-0645-x

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