Abstract
A new species, Psephellus vanensis A.Duran, Behçet & B.Dogan (Asteraceae) from Anatolia, Turkey, is described and illustrated. The species grows on the serpentine stony field of the village of Çaldıran in the district of Başkale (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.
Highlights
The genus Psephellus Cass. embraces 75–80 species
Psephellus vanensis differs from P. pyrrhoblepharus in its stem 13–20 cm tall and tomentose (vs. (20–)30–50 cm, floccose-tomentose), basal leaves usually undivided and elliptic to lanceolate, rarely lyrate with 2–3 pairs of lateral segments, involucre 11–17 × 11–14 mm, bowl-shaped, achenes 4–5 mm long, pappus 5–6 mm long, inner row of scales 1–2 mm long
Psephellus vanensis is endemic to east Anatolia, where it seems to be very local
Summary
Sennikov | Received 31 October 2014 | Accepted 24 March 2015 | Published 2 April 2015 Citation: Dogan B, Behçet L, Duran A, Avlamaz D (2015) Psephellus vanensis (Asteraceae), a new species from east Turkey.
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