Cyperus noeanus Boiss. is known only from the type specimen that was collected in Central Anatolia by Wilhelm Noë. It is considered an endemic species in Turkey. A detailed morphological study of the type specimen and comparison with similar related species in section Compressi Kunth demonstrated that the morphological characters of C. noeanus entirely fall within the range of characters of C. glaber L., which is a widely scattered species in Turkey. | Turkish Journal of Botany Turk J Bot (2018) 42: 233-238 © TÜBİTAK doi: Research Note On the identity of the Turkish endemic Cyperus noeanus (Cyperaceae) 1, 2 Attila MESTERHÁZY *, Filip VERLOOVE Directorate of Hortobágy National Park H-4024, Debrecen, Hungary 2 Botanic Garden of Meise, Meise, Belgium 1 Received: Accepted/Published Online: Final Version: Abstract: Cyperus noeanus Boiss. is known only from the type specimen that was collected in Central Anatolia by Wilhelm Noë. It is considered an endemic species in Turkey. A detailed morphological study of the type specimen and comparison with similar related species in section Compressi Kunth demonstrated that the morphological characters of C. noeanus entirely fall within the range of characters of C. glaber L., which is a widely scattered species in Turkey, and widespread in S Europe and SW Asia as well. Based on our comparative study, we suggest that C. noeanus should be treated as a synonym of C. glaber. Key words: Cyperaceae, flora, taxonomy, Turkey 1. Introduction With 31 species, Cyperus L. is the second largest genus of Cyperaceae in Asia Minor (Govaerts and Simpson, 2007). The genus mainly occupies wet habitats at lower altitudes. Life forms exhibited include therophytes (annuals) and hemicryptophytes (perennials) (Govaerts and Simpson, 2007). According to the latest literature sources (JiménezMejías and Luceño, 2011; Güner et al., 2012) 18 species can be found in Turkey. Most of them are widely distributed throughout the country, as far as in the Mediterranean region. Only one endemic species is reported from Turkey, Cyperus noeanus Boiss. It was described by Pierre Edmond Boissier (Boissier, 1884) based on a single herbarium specimen (see Figure 1). The specimen was collected at salt lakes in Anatolia in 1847 by Noë (Baytop, 2012). The information on the locality is very poor: “in lacibus .
