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Issue: Vol. 497 No. 2: 20 April 2021
Type: Article
Published: 2021-04-20
DOI: 10.11646/phytotaxa.497.2.1
Page range: 61–78
Abstract views: 25
PDF downloaded: 1

Pseudotomentella badjelanndana, Pseudotomentella sorjusensis and Tomentella viridibasidia—three new corticioid Thelephorales species from the Scandes Mountains

Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, 405 30 Göteborg, Sweden Gothenburg Global Biodiversity Centre, Box 461, 405 30 Göteborg, Sweden Royal Botanic Gardens Victoria, Birdwood Ave, Melbourne, Victoria 3004, Australia
Gothenburg Global Biodiversity Centre, Box 461, 405 30 Göteborg, Sweden The Mycological Herbarium, Natural History Museum, University of Oslo, P.O. Box 1172, Blindern, 0318 Oslo, Norway
Department of Biological and Environmental Sciences, University of Gothenburg, Box 463, 405 30 Göteborg, Sweden Gothenburg Global Biodiversity Centre, Box 461, 405 30 Göteborg, Sweden
Fungi Alpine arctic Basidiomycota biodiversity boreal ectomycorrhiza environmental sequence key molecular systematics taxonomy tundra UNITE database

Abstract

One Tomentella and two Pseudotomentella species are described from alpine areas of Sweden and Norway. Tomentella viridibasidia sp. nov. is genetically closely related to T. bryophila, but is morphologically most similar to T. olivascens and T. stuposa. Pseudotomentella badjelanndana sp. nov. and P. sorjusensis sp. nov. belong to the P. tristis group. At least P. sorjusensis must currently be regarded as morphologically cryptic with P. rotundispora. Basidiomata of the new species have only been encountered in the Scandes Mountains, but root-tip and soil sequences indicate that all three are geographically widespread. An updated key to the Pseutomentella tristis group is provided.