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Type: Article
Published: 2014-05-19
Page range: 013–023
Abstract views: 13
PDF downloaded: 1

Melanoleuca juliannae (Basidiomycota, Tricholomataceae), a new species from subgen. Urticocystis

Moravian Museum, Dept. of Botany
Department of Botany and Soroksár Botanical Garden, Corvinus University of Budapest
Department of Botany and Soroksár Botanical Garden, Corvinus University of Budapest
Department of Botany and Soroksár Botanical Garden, Corvinus University of Budapest
Department of Microbiology, Faculty of Science and Informatics, University of Szeged
Department of Microbiology, Faculty of Science and Informatics, University of Szeged
Department of Microbiology, Faculty of Science and Informatics, University of Szeged
Department of Microbiology, Faculty of Science and Informatics, University of Szeged
Department of Botany, Faculty of Natural Sciences, Comenius University in Bratislava
Faculty of Forestry and Wood Technology, Mendel University in Brno
taxonomy phylogeny ITS tef1 Czech Republic Hungary Italy

Abstract

A new species, Melanoleuca juliannae is described from Hungary. Its most outstanding character is the presence of a violaceous-blue colour in the stipe base. Sequence comparisons with other Melanoleuca species revealed highly similar but decolourate members of the species, lacking the remarkable colour of the stipe. These specimens are described as Melanoleuca juliannae var. decolorans based on three collections from the Czech Republic and Italy. Detailed macro- and microscopic descriptions of the new species are given. The position of M. juliannae within subgen. Urticocystis was confirmed by DNA sequence data of the ITS region of the nuclear ribosomal RNA gene cluster and translation elongation factor 1-alpha (tef1). Although intra-individual heterogeneity in ITS region was revealed in some specimens of the type variety, the tef1 sequences lack a similar heterogeneity.