Psephellus vanensis (Asteraceae), a new species from east Turkey

Abstract

A new species, Psephellus vanensis A.Duran, Behcet \& B.Dogan (Asteraceae) from Anatolia, Turkey, is described and illustrated. The species grows on the serpentine stony field of the village of caldiran in the district of Baskale (Van province) in eastern Anatolia. It is morphologically similar to Psephellus pyrrhoblepharus (Boiss.) Wagenitz. Diagnostic characters are discussed, and a key to the most similar species is provided. Ecology, conservation status and notes on biogeography of the species are also presented. In addition, the geographical distribution of the new species and other related species in Turkey is mapped.