Phytotaxa 152 (1): 59–60 (2013) www.mapress.com / phytotaxa / Copyright © 2013 Magnolia Press ISSN 1179-3155 (print edition) Correspondence PHYTOTAXA ISSN 1179-3163 (online edition) http://dx.doi.org/10.11646/phytotaxa.152.1.8 Senecio imbaburensis, proposed name for Lasiocephalus sodiroi in the genus Senecio (Asteraceae) KAROL MARHOLD1,2 & PETR SKLENÁŘ1 1 Charles University in Prague, Faculty of Science, Department of Botany, Benátská 2, CZ-128 01 Praha, Czech Republic; email Karol.Marhold@savba.sk 2 Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 23 Bratislava, Slovak Republic Lasiocephalus Willd. ex Schlechtendal (1818: 308), as traditionally circumscribed (e.g., by Cuatrecasas 1978, Dušková et al. 2010), is a neotropical genus of ca 25 species confined to the Andes and distributed from Venezuela to Bolivia. Nevertheless, recent studies by Pelser et al. (2007, 2010) have shown that based on phylogenetic analyses of nrITS and plastid DNA sequence data, species of the genus Lasiocephalus are deeply embedded in Senecio Linnaeus (1753: 866), and, consequently, should be transferred into this latter genus. In fact, a number of species of Lasiocephalus were originally described as Senecio or had been, at some point, transferred into Senecio so only few transfers are necessary. Lasiocephalus sodiroi (Hieronymus 1900: 63) Cuatrecasas (1990: 313) is based on the name Culcitium sodiroi Hieron., described by Hieronymus (1900: 63−64) from “[Ecuador,] summis pascuis montium Imbabura et Chimborazo”, based on unnumbered specimens collected by Sodiro. The type specimen was originally deposited in B, where it was destroyed in 1943 [see photo no. 18150 at F (F0BN018150); Field Museum 2012] and a lectotype was subsequently selected by Cuatrecasas (1990), see below. Apart from the two localities mentioned in protologue, the species is known from a few additional localities in Ecuador (Cuatrecasas 1990, Sklenář (2001) and Sklenář, unpublished data); however, in contrast to Sklenář 2001, the population in Carchi is now considered to belong to Senecio (Lasiocephalus) gargantanus (Cuatrecasas 1942: 29) Cuatrecasas (1950: 44). Following some authors (Sklenář 2001, The Plant List 2010, Flann 2009+, urn:lsid:compositae.org:names:9D3C0615-0F67-4F11-8223-1EE0FFC39CC8) it seems that the corresponding name in the genus Senecio is Senecio sodiroi (Hieron.) Cuatrecasas (1950: 45), which is indeed based on Culcitium sodiroi Hieronymus (1900: 63). However, the name Senecio sodiroi (Hieron.) Cuatrec. is a later homonym of the name Senecio sodiroi Hieronymus (1900: 73). The latter species was described by Hieronymus based on a specimen collected in “[Ecuador,] regione subtropica alt. s. m. 900−2000 m prope Canzacoto, etc.” (Hieronymus 1900: 73−74; Sodiro 60/2). Currently this species is treated within the genus Pseudogynoxys as Pseudogynoxys sodiroi (Hieronymus 1900: 73) Cuatrecasas (1964: 150) (Pruski 1996). According to the recent studies (Pelser et al. 2002, 2007, 2010) the genus Pseudogynoxys is well separated from both Senecio and Lasiocephalus. Consequently, following Art. 6.11 and Art. 53 of the Code (McNeill et al. 2012), a replacement name should be published, which is done here as follows: Senecio imbaburensis Sklenář & Marhold, nom. nov. ≡ Culcitium sodiroi Hieronymus (1900: 63). ≡ Senecio sodiroi (Hieron.) Cuatrecasas (1950: 45), nom. illeg., non Hieronymus (1900: 73). ≡ Lasiocephalus sodiroi (Hieron.) Cuatrecasas (1990: 313). Lectotype (designated by Cuatrecasas 1990: 313):—ECUADOR. Riobamba [below Chimborazo], s.a., Sodiro s.n. (P). Accepted by Alexander Sennikov: 18 Nov. 2013; published: 11 Dec. 2013 Licensed under a Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0 59 Acknowledgements This research was supported by the Czech Science Foundation (project no. 206/07/0273), as well as by the institutional funds of the Charles University in Prague, Faculty of Science. The authors thank Vicki Funk for comments and for revision of the English. References Cuatrecasas, J. (1942) Notas a la flora de Colombia, V. Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales 5 (17): 16−39. Cuatrecasas, J. (1950) Studies on Andean Compositae 1. Fieldiana, Botany 27: 1−53. Cuatrecasas, J. (1964) Micelanea sobre flora Neotropica, I. Ciencia (Mexico) 23: 137−151. Cuatrecasas, J. (1978) Studies in Neotropical Senecioneae, Compositae I. Reinstatement of genus Lasiocephalus. Phytologia 40: 307–312. Cuatrecasas, J. (1990) Miscellaneous notes on Neotropical flora, XIX. 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Published on the Internet; http://www.theplantlist.org/, accessed: 19 October 2013. 60 • Phytotaxa 152 (1) © 2013 Magnolia Press MARHOLD & SKLENÁŘ