Two new records and one confirmation of the genus Poa L. (Poaceae) for the Flora of Turkey (original) (raw)

2016, TURKISH JOURNAL OF BOTANY

is the type genus of the grass family Poaceae Barnhart. It comprises over 550 species distributed in temperate regions of the world. Extensive polyploidy, hybridization, apomixis, and only a few useful morphological characters make the genus taxonomically difficult (Gillespie and Soreng, 2005). In the Flora of Turkey, Edmondson (1985) reported 24 species. He noted one imperfectly known species as P. hackelii Post, and two doubtful species as P. iberica Fisch & C. A. Mey and P. palustris L. In his treatment, he placed P. eigii Feinbrun under P. bulbosa L. s.l. In subsequent years, three more Poa species, P. akmanii Soreng, P.Hein & H.Scholz, P. asiae-minoris H.Scholz & Byfield, and P. bussmannii H. Scholz, were described from Turkey. In the checklist of the Poaceae of Turkey, Cabi and Doğan (2012) reported 30 taxa, including P. densa Troitsky, and the three questionably present taxa P. palustris, P. iberica, and P. hackelii. The objective of the current study is to report the presence of three unreported or uncertain taxa of Poa from Turkey. 2. Materials and methods The authors carried out extensive fieldwork between 2011 and 2014 and collected a large number of specimens of the genus Poa for the purpose of revising the genus in Turkey. Upon closer examination of these materials and going through the Flora of Turkey (Edmondson, 1985) and other relevant floras (such