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Two new species in Cortinarius subgenus Telamonia, Cortinarius brunneifolius and C. leiocastaneus, from Fennoscandia (Basidiomycota, Agaricales)

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Abstract

Two new Cortinarius species, C. brunneifolius and C. leiocastaneus, are described based on molecular and morphological data. Cortinarius brunneifolius looks like a trivial brown Telamonia. It is characterised by the fairly dark brown cap and gills contrasting with the white stem. The major distinctive features are the refracting, colourless granules in the epicutis hyphae, broadly ellipsoid, equally verrucose spores, and fruitbody without bluish tints. Cortinarius leiocastaneus can be fairly easily recognised by the appearance of miniature brown Telamonia species, narrowly amygdaloid spores, and a habitat with Betula. Detailed descriptions of the species are provided as well as comparisons with macro- and microscopically similar existing telamonioid taxa. Phylogenetic relationships within the genus were studied by use of ITS rDNA sequence data. Ten new ITS sequences are published. Cortinarius brunneifolius and C. leiocastaneus are fairly closely related and belong to the subgenus Telamonia sensu stricto. The infrasubgeneric relationships were not well resolved, but the new species seem to be unrelated to the macroscopically similar species and do not clearly belong to any of the existing sections.

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Acknowledgements

We thank Heino Vänskä for revision of the Latin descriptions and referees for valuable comments. This work was supported by the Ministry of Environment, Finland (YM195/5512/2002-5 & YM196/5512/2002-5).

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Authors and Affiliations

  1. Department of Biological and Environmental Sciences, Plant Biology, University of Helsinki, P.O. Box 65, 00014, Helsinki, Finland

    Tuula Niskanen & Kare Liimatainen

  2. Botanical Museum, University of Helsinki, P.O. Box 7, 00014, Helsinki, Finland

    Ilkka Kytövuori

Authors
  1. Tuula Niskanen
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  2. Kare Liimatainen
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  3. Ilkka Kytövuori
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Corresponding author

Correspondence to Tuula Niskanen.

Additional information

Taxonomical novelties: Cortinarius brunneifolius Kytöv., Niskanen & Liimat., Cortinarius leiocastaneus Niskanen, Liimat. & Soop.

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Niskanen, T., Liimatainen, K. & Kytövuori, I. Two new species in Cortinarius subgenus Telamonia, Cortinarius brunneifolius and C. leiocastaneus, from Fennoscandia (Basidiomycota, Agaricales). Mycol Progress 7, 239–247 (2008). https://doi.org/10.1007/s11557-008-0565-1

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  • DOI: https://doi.org/10.1007/s11557-008-0565-1

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