Seseli L. is represented by 12 taxa (species and subspecies) in the Flora of Turkey. On the basis of morphological examination and field investigation, we have revised the genus Seseli in Turkey. | Turkish Journal of Botany Turk J Bot (2013) 37: 1018-1037 © TÜBİTAK doi: Research Article The revision of genus Seseli (Umbelliferae) in Turkey 1, 2 Ebru DOĞAN GÜNER *, Hayri DUMAN Vocational School of Health Sciences, Gazi University, Gölbaşı, Ankara, Turkey 2 Department of Biology, Faculty of Sciences, Gazi University, Teknikokullar, Ankara, Turkey 1 Received: Accepted: Published Online: Printed: Abstract: Seseli L. is represented by 12 taxa (species and subspecies) in the Flora of Turkey. On the basis of morphological examination and field investigation, we have revised the genus Seseli in Turkey. The following are provided for each taxon: a description, along with the complete synonymy and notes on nomenclature, geographical distribution, habitat, IUCN conservation status assessment, and selected materials examined. Two new species from Turkey, Seseli marashica & and S. serpentina ex & , are also described. One taxon is reduced to synonymy: S. paphlagonicum Pimenov & Kljuykov is a synonym of S. gummiferum Pallas ex Smith. Moreover, one species is reduced to the rank of subspecies: S. corymbosum Boiss. & Heldr. ex Boiss. subsp. phrygium (Pimenov & Kljuykov) & . According to the present revision, the genus contains 13 taxa (species and subspecies). Key words: Turkey, revision, Seseli, Apiaceae 1. Introduction Seseli L., with about 135 species, 80 of which are distributed within Asia, is placed at number 6 regarding the number of species in Umbelliferae (Pimenov and Leonov, 2004; Akalın Uruşak and Kızılaslan, 2013; Aytaç and Duman, 2013). According to the Flora of Turkey, this genus is represented by 11 species and 1 subspecies, 4 of which are endemic (Hedge and Lamond, 1972; Davis et al., 1988; Duman, 2000). Seseli is represented by 9 species (Seseli pimpinelloides L., S. montanum L., S. glaucum
