Alopecurus goekyigitiana, a new species from the Taurus Mountains of Turkey, is described and illustrated. Phylogenetic analyses of DNA sequence data support its relationship within Alopecurus sect. Colobachne with A. gerardi (plastid), or with the complex of A. davisii, A. lanatus, and A. vaginatus (nuclear ribosomal spacers). | Turkish Journal of Botany Turk J Bot (2017) 41: 189-199 © TÜBİTAK doi: Research Article Alopecurus goekyigitiana (Poaceae, subtribe Alopecurinae sensu stricto), a new species from Turkey based on morphological and molecular investigation 1, 2 3,4 5 Evren CABİ *, Robert John SORENG , Lynn Judith GILLESPIE , Ekaterina BOUDKO Department of Biology, Faculty of Arts and Sciences, Namık Kemal University, Tekirdağ, Turkey 2 Department of Botany, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA 3 Research Division, Canadian Museum of Nature, Ottawa, Ontario, Canada 4 Department of Biology, Faculty of Science, University of Ottawa, Ottawa, Ontario, Canada 5 Tweed Inc., Smiths Falls, Ontario, Canada 1 Received: Accepted/Published Online: Final Version: Abstract: Alopecurus goekyigitiana, a new species from the Taurus Mountains of Turkey, is described and illustrated. Phylogenetic analyses of DNA sequence data support its relationship within Alopecurus sect. Colobachne with A. gerardi (plastid), or with the complex of A. davisii, A. lanatus, and A. vaginatus (nuclear ribosomal spacers). The new species differs from the above taxa by various combinations of characters, in having slender rhizomes and a mat-forming habit, indumentum of lower sheaths sparsely sericeous, glabrescent, culm leaf blades absent or vestigial, basal blades filiform, a dorsal awn on the lemma that is vestigial or up to 2 mm long, erect (not geniculate), and the palea absent. Notes on its ecology and conservation status are presented. A distribution map for the new species and its closest allies in Turkey is provided. Key words: Southwest Asia, DNA, endemic, foxtail, threat category 1. Introduction The grass family (Poaceae Barnhart), with about 12,000 species and 763 genera, ranks as the second largest monocot family and the fifth largest plant family (Clayton and .
