A revised infrageneric classification for Gagea Salisb. (Tulipeae; Liliaceae): insights from DNA sequence and morphological data Author Zarrei, Mehdi Royal Botanic Gardens, Kew, Richmond TW 9 3 DS, UK. & Current address: Green Plant Herbarium (TRT), Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario, M 5 S 2 C 6, Canada (* e-mail for correspondence: m. zarrei @ utoronto. ca). Author Wilkin, Paul Royal Botanic Gardens, Kew, Richmond TW 9 3 DS, UK. Author Ingrouille, Martin J. School of Biological and Chemical Science, Birkbeck College, University of London, Mallet Street, WC 1 E 7 HX, UK. Author Chase, And Mark W. Royal Botanic Gardens, Kew, Richmond TW 9 3 DS, UK. text Phytotaxa 2011 2011-12-31 15 44 56 journal article 6274 10.11646/phytotaxa.15.1.6 fd097095-4d41-463a-b537-9c85d7f5e085 1179-3163 4894104 Gagea sect. Plecostigma (Turcz.) Pascher Both Pascher (1904 , 1907 ) and Levichev (2006) accepted Gagea sect. Plecostigma . However, the species they included in this section were different. For example, G. afghanica Terracciano (1904: 3) and G. olgae Regel (1875: 292) were placed under G. sect. Platyspermum by Pascher (1907) and subsequently by Uphof (1958 – 1960), whereas Levichev (2006) believed these three species should be classified under G. sect. Plecostigma . Molecular analysis of Zarrei et al. (2009) and Peterson et al. (2008) confirmed Levichev's treatment of the section. Moreover, based on molecular data ( Zarrei et al. 2009 ) G. wendelboi Rechinger (1986: 291) , G. exilis Vvedensky (1946: 236) and G. chlorantha (M.Bieb.) Schultes & Schultes (1829: 551) should be transferred to G. sect. Plecostigma . Palynomorphological data also support Levichev's treatment of the section because all members of the section have a foveolate or perforate pollen type and similar basal leaf transverse sections ( Zarrei & Zarre 2005 ). The possession of a cymose inflorescence and fibrous-papery tunic are synapomorphies for this section.