Psephellus turcicus sp. nov. (Asteraceae), a new chasmophyte species from central Anatolia, Turkey

• Published in: Botanical journal of the Linnean Society Vol. 148; no. 4; pp. 495 - 500
• Main Authors: Duran, A, Hamzaoglu, E
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Science Ltd 01.08.2005
• Subjects: Asteraceae; Cardueae; Compositae; new species; plant morphology; plant taxonomy; Psephellus turcicus; taxonomic keys; taxonomy; Turkey (country)
• ISSN: 0024-4074; 1095-8339
• DOI: 10.1111/j.1095-8339.2005.00425.x

A new species, Psephellus turcicus A.Duran & Hamzaoğlu (Asteraceae) in sect. Psephelloidei (Boiss.) Wagenitz & Hellwig is described and illustrated from Anatolia, Turkey. The species grows on limestone crevices in Kazankaya Canyon (A5 Yozgat) in central Anatolia. A neo‐endemic confined to Kazankaya Canyon, it is closely related to Psephellus psephelloides (Freny & Sint.) Wagenitz. Diagnostic morphological characters from closely similar taxa are discussed, and arranged in a key of Turkish similar Psephellus Cass. The ecology, biogeography and conservation status of the species are also presented. Achene surface morphology of P. turcicus and P. psephelloides are examined by SEM. The geographical distribution of the new species and other related species is mapped. © 2005 The Linnean Society of London, Botanical Journal of the Linnean Society, 2005, 148, 495–500.