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Lyophyllum turcicum (Agaricomycetes: Lyophyllaceae), a new species from Turkey

A new species, Lyophyllum turcicum, from the Kümbet plateau of the Dereli district in Giresun Province, Turkey, is described, taxonomically delimited, and illustrated based on morphological and molecular data. The new species belongs to a small group of species in the Lyophyllum sect. | Turkish Journal of Botany Turk J Bot (2015) 39: 512-519 © TÜBİTAK doi:10.3906/bot-1407-16 http://journals.tubitak.gov.tr/botany/ Research Article Lyophyllum turcicum (Agaricomycetes: Lyophyllaceae), a new species from Turkey 1, 1 2 3 Ertuğrul SESLİ *, Alfredo VIZZINI , Marco CONTU Department of Biology Education, Karadeniz Technical University, Trabzon, Turkey 2 Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy 3 Via Marmilla, Olbia, Italy Received: 03.07.2014 Accepted: 21.11.2014 Published Online: 04.05.2015 Printed: 29.05.2015 Abstract: A new species, Lyophyllum turcicum, from the Kümbet plateau of the Dereli district in Giresun Province, Turkey, is described, taxonomically delimited, and illustrated based on morphological and molecular data. The new species belongs to a small group of species in the Lyophyllum sect. Difformia as traditionally circumscribed. Lyophyllum turcicum is easily distinguished mainly by the light tinges of the basidiomes, filiform-fusiform to cylindro-flexuose marginal cells, and elongate, ellipsoid spores. Key words: Lyophyllaceae, Lyophyllum turcicum, new species, Turkey 1. Introduction In recent years some new taxa have been described in the complex of the not blackening, caespitose-growing Lyophyllum P. Karst. species belonging to section Difformia (Bon, 1999). Lyophyllum sect. Difformia is presently known to include 14 caespitose and/or not blackening Lyophyllum species worldwide. Most of them are from Europe, with a few exceptions: L. multiforme from North America, L. tucumanense from Argentina, and L. shimeji from Japan. Two subsections have been distinguished: the first subsection, Difformia, encompasses the caespitosegrowing species, which are the majority; the second subsection, Lanzoniana Consiglio & Contu, encompasses the not caespitose-growing species. No species belonging to the second subsection seem to be known outside Europe (Consiglio and Contu, 2002). Although new species .