tailieunhanh - A new species of Hygrophorus, H. yadigarii sp. nov. (Hygrophoraceae), with an isolated systematic position within the genus from the Colchic part of Turkey

Hygrophorus yadigarii (Hygrophoraceae/Basidiomycota) is described as a new species for science based on basidiomata collected from Maçka, Trabzon, Turkey. The new taxon is quite different even from the closest relatives, easily distinguished by the other species because of its grayish to ash-colored, gregarious to subcaespitose, sticky basidioma. | Turkish Journal of Botany Turk J Bot (2018) 42: 224-232 © TÜBİTAK doi: Research Article A new species of Hygrophorus, H. yadigarii sp. nov. (Hygrophoraceae), with an isolated systematic position within the genus from the Colchic part of Turkey 1, 1 2 3 Ertuğrul SESLİ *, Vladimír ANTONÍN , Marco CONTU Department of Biology Education, Faculty of Education, Karadeniz Technical University, Trabzon, Turkey 2 Moravian Museum, Department of Botany, Brno, Czech Republic 3 Via Marmilla, 12 (I-Gioielli 2), I-07026 Olbia (OT), Italy Received: Accepted/Published Online: Final Version: Abstract: Hygrophorus yadigarii (Hygrophoraceae/Basidiomycota) is described as a new species for science based on basidiomata collected from Maçka, Trabzon, Turkey. The new taxon is quite different even from the closest relatives, easily distinguished by the other species because of its grayish to ash-colored, gregarious to subcaespitose, sticky basidioma; a slightly umbonate to depressed pileus; a cylindrical to clavate, grayish stipe; ellipsoid and smooth basidiospores; quite long basidia; clavate, cylindrical or narrowly utriform, apically pyriform or strangulated cheilocystidia; and gelatinous pileipellis. A description with field and micromorphological illustrations, a phylogenetic tree, a simple key, a comparison chart including similar species, and a short discussion are provided. Key words: Colchic, Hygrophorus, Maçka, new species, Trabzon 1. Introduction The genus Hygrophorus belongs to the family Hygrophoraceae, proposed by Roze (1876). Singer (1986) recognized seven genera in that family: Hygrophorus, Neohygrophorus Singer (= Pseudoomphalina), Hygrotrama Singer (= Camarophyllopsis), Camarophyllus (Fr.) ., Hygrocybe (Fr.) ., Hygroaster Singer (= Hygrocybe, see below), and Omphaliaster . Recent molecular studies have shown that many known entities can be classified in

• Nông nghiệp
• Genus Hygrophorus
• Sticky basidioma
• Hygrophorus yadigarii
• Phylogenetic tree
• Micromorphological illustrations