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Type: Article
Published: 2020-06-23
Page range: 253–264
Abstract views: 29
PDF downloaded: 2

How variable is Crepidotus variabilis?

Comenius University in Bratislava, Faculty of Natural Sciences, Department of Botany, Révová 39, SK-811 02 Bratislava, Slovakia.
Institute of Forest Ecology, Slovak Academy of Sciences, Department of Plant Pathology and Mycology, Akademická 2, SK-949 01 Nitra, Slovakia.
Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Department of Cryptogams, Dúbravská cesta 9, SK-845 23 Bratislava, Slovakia.
Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Department of Cryptogams, Dúbravská cesta 9, SK-845 23 Bratislava, Slovakia.
Agaricomycetes Crepidotus variabilis var. trichocystis Crepidotus neotrichocystis morphology ITS sequences Fungi

Abstract

This study evaluates the morphological concept of Crepidotus variabilis and similar taxa based on basidiospore and cheilocystidia characters. A phylogenetic analysis of the ITS region clearly distinguished C. variabilis var. variabilis from the two other distinct taxa of the same lineage, C. variabilis var. trichocystis and C. neotrichocystis. We also recognised one additional morphologically similar and undescribed species that belongs to the C. variabilis lineage. All four taxa can also be recognised morphologically using basidiospore and cheilocystidia characters. Our detailed statistical comparison of these characters improves the knowledge of their variability and specifies more precisely the morphological circumscription of the taxa within this group.