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Redalyc.FOUR NEW COMBINATIONS in ARGENTINIAN Darwiniana ISSN: 0011-6793 [email protected] Instituto de Botánica Darwinion Argentina Luebert, Federico; Frohlich, Michael W. FOUR NEW COMBINATIONS IN ARGENTINIAN HELIOTROPIACEAE Darwiniana, vol. 4, núm. 2, diciembre, 2016, pp. 192-194 Instituto de Botánica Darwinion Buenos Aires, Argentina Available in: http://www.redalyc.org/articulo.oa?id=66949983008 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative DARWINIANA, nueva serie 4(2): 192-194. 2016 Versión final, efectivamente publicada el 31 de diciembre de 2016 DOI: 10.14522/darwiniana.2016.42.717 ISSN 0011-6793 impresa - ISSN 1850-1699 en línea FOUR NEW COMBINATIONS IN ARGENTINIAN HELIOTROPIACEAE Federico Luebert1,2 & Michael W. Frohlich3 1Nees-Institut für Biodiversität der Pflanzen, Universität Bonn, Meckenheimer Allee 170, 53115 Bonn, Germany; [email protected] (author for correspondence). 2Departamento de Silvicultura y Conservación de la Naturaleza, Universidad de Chile, 8320000 Santiago, Chile. 3Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, United Kingdom. Abstract. Luebert, F. & M.W. Frohlich. 2016. Four new combinations in Argentinian Heliotropiaceae. Darwiniana, nueva serie 4(2): 192-194. Four new combinations in the genera Euploca and Myriopus (Heliotropiaceae) are established: Eu- ploca aurata, E. catamarcense, Myriopus breviflorus and M. paniculatus var. austrinus. Keywords. Argentina; Boraginaceae; Euploca; Heliotropium; Myriopus; South America; Tournefortia. Resumen. Luebert, F. & M.W. Frohlich. 2016. Cuatro combinaciones nuevas en Heliotropiaceae argentinas. Darwiniana, nueva serie 4(2): 192-194. Se efectúan cuatro nuevas combinaciones en los géneros Euploca y Myriopus (Heliotropiaceae): Euploca aurata, E. catamarcense, Myriopus breviflorus y M. paniculatus var. austrinus. Palabras clave. Argentina; Boraginaceae; Euploca; Heliotropium; Myriopus; Sudamérica; Tournefortia. INTRODUCTION rred to Euploca (Hilger & Diane, 2003). These Heliotropiaceae is a monophyletic group (Wei- phylogenetic studies also showed that the tradi- gend et al., 2014) and is considered as a family tional Tournefortia is polyphyletic, with T. sect. (instead of as a subfamily of Boraginaceae s.l.) for Cyphocyema I.M.Johnst. forming a clade sister to reasons of nomenclatural stability and easiness of Euploca and recognized under the generic name morphological recognition, which cannot be ful- Myriopus. Euploca and Myriopus are morpholo- filled when Boraginaceae is regarded in its broad gically well defined groups, and their generic cir- sense (Luebert et al., 2016). Four genera are ac- cumscriptions are increasingly being accepted in cepted within Heliotropiaceae (Diane et al., 2016): the taxonomic literature (e.g., Degen Naumann & Euploca Nutt., Heliotropium L., Ixorhea Fenzl, Melo, 2012; Feuillet, 2008, 2012, 2016; Feuillet & and Myriopus Small, all of which are present in Halse, 2016; Hilger & Diane, 2003; Luebert et al., Argentina. Euploca, Ixorhea and Myriopus form 2011; Melo & Semir, 2006, 2009, 2010). a clade sister to a broadly defined Heliotropium During the revision of Argentinian Heliotro- (Hilger & Diane, 2003; Luebert et al., 2011, Diane piaceae, we came across some species in Helio- et al., 2016). The latter includes Tournefortia L. tropium and Tournefortia still in need of trans- sect. Tournefortia and the remaining sections tradi- fer to Euploca and Myriopus, respectively. The tionally ascribed to Heliotropium, except H. sect. purpose of this contribution is to provide the Orthostachys (R.Br.) G.Don, which was transfe- necessary new combinations that can be used in Original recibido el 22 de junio de 2016, aceptado el 25 de agosto de 2016 Editora: Nataly O’Leary 192 F. LUEBERT & M. W. FROHLICH. New combinations in Heliotropiaceae future treatments of the family in regional floras, Cabrera, 1983; Förther, 1998; Correa, 1999, sub as well as the yet incomplete treatment of Helio- Heliotropium chrysanthum Phil.). Di Fulvio & Ari- tropiaceae (sub Boraginaceae s.l.) of Flora Fane- za-Espinar (2000) consider it to be a good species, rogámica Argentina (Ariza-Espinar, 2006), now a criterion followed in subsequent publications continued as Flora Argentina [Anton & Zuloa- (Zuloaga et al., 2008). ga]. Type specimens were examined at G, GH, MSB, P, SGO and US (Thiers, 2015). Euploca catamarcense (I.M.Johnst.) Frohlich, comb. nov. Heliotropium catamarcense I.M. Johnst., Contr. Gray. Herb. 81: 59. 1928. TYPE: RESULTS Argentina, Catamarca, Pilciao, 700 m, 20- IV-1917, P. Jörgensen 1868 (holotype GH bc Euploca Nutt., Trans. Amer. Phil. Soc. n.s. 5: 189. GH00097604!; isotypes GH bc GH00097605!, 1837. TYPE SPECIES: Euploca convolvulacea LIL bc LIL001430 photo!, LIL bc LIL001431 Nutt. photo!, SI bc SI001133 photo!, SI bc SI001134 photo!, SI bc 001135 photo!, US bc US00110847!). Heliotropium sect. Orthostachys (R.Br.) G.Don, Gen. Hist. 4: 361. 1838. TYPE SPECIES: Heliotropium Observations. This species is endemic to western foliatum R.Br. (lectotype designated by Johnston, Argentina (Johnston, 1928; Zuloaga et al., 2008). Contr. Gray Herb. 81: 46. 1928). Observations. Generic description found in Myriopus Small, Man. S.E. Fl. 1131. 1933. TYPE Diane et al. (2016). Euploca consists of ca. 100 SPECIES: Myriopus poliochros (Spreng.) Small species of pantropical distribution, especially in (lectotype designated by Förther, Sendtnera 5: semiarid zones, with centers of diversity in the 128. 1998). Americas and Australia. Ten species have been reported to occur in Argentina [Euploca aurata Tournefortia sect. Cyphocyema I.M.Johnst., Contr. Gray (Phil.) Frohlich, E. campestris (Griseb.) Diane & Herb. 92: 72. 1930. TYPE SPECIES: Tournefortia Hilger, E. catamarcense (I.M.Johnst.) Frohlich, membranacea (Gardner) DC. E. chrysantha (Phil.) Diane & Hilger, E. filiformis (Lehm.) J.I.M.Melo & Semir, E. hassleriana Observations. Generic description found in Dia- (Chodat) J.I.M.Melo & Semir, E. mendocina (Phil.) ne et al. (2016). Myriopus comprises around 25 Diane & Hilger, E. ocellata (Cham.) J.I.M.Melo species of largely Neotropical distribution from & Semir, E. pallescens (I.M.Johnst.) J.I.M.Melo southern United States to northern Argentina with & Semir, E. procumbens (Mill.) Diane & Hilger, centers of diversity in Brazil and the Caribbean. and E. salicoides (Cham.) J.I.M.Melo & Semir; Four species have been reported to occur in Argen- Zuloaga et al., 2008, sub Heliotropium]. tina [M. breviflorus (DC.) Luebert, M. paniculatus (Cham.) Feuillet, M. rubicundus (Salzm. ex DC.) Euploca aurata (Phil.) Frohlich, comb. nov. Luebert, and M. salzmannii (DC.) Diane & Hilger; Heliotropium auratum Phil., Anales Mus. Nac., Zuloaga et al., 2008, sub Tournefortia]. Santiago de Chile 8: 56. 1891. TYPE: Argentina, Catamarca, Antofagasta de la Sierra, I-1885, F. Myriopus breviflorus (DC.) Luebert, comb. Philippi s.n. (lectotype SGO 54425! designated nov. Tournefortia breviflora DC., Prodr. 9: 520. by Förther, Sendtnera 5: 180. 1998; isolectotypes 1845. TYPE: Brazil, Rio [de Janeiro], 1834, N. SGO 42267!, GH bc GH00097639!). Lund s.n. (holotype G00147013! [photo F neg 7760!, photo MSB!]; isotype P bc P03525470!). Observations. This species is endemic to nor- thwestern Argentina and was long considered as Observations. This species occurs in Argentina, a synonym of Euploca chrysantha (Phil.) Diane Brazil, Paraguay and Uruguay (Johnston, 1930; & Hilger (e.g., Johnston, 1928; Pérez-Moreau & Zuloaga et al., 2008). 193 DARWINIANA, nueva serie 4(2): 192-194. 2016 Feuillet, C. & R. R. Halse. 2016. New combinations from He- Myriopus paniculatus austrinus var. (I.M. liotropium to Euploca (Boraginales: Heliotropiaceae) for Johnst.) Luebert, comb. nov. Tournefortia pa- North American species. Phytoneuron 2016(5): 1-3. niculata var. austrina I.M.Johnst., Contr. Gray. Förther, H. 1998. Die infragenerische Gliederung der Gattung He- Herb. 92: 82. 1930. TYPE: Argentina, Tucumán, liotropium L. und ihre Stellung innerhalb der subfam. Heliotro- La Ramada, XII-1914, M. Lillo 3032M (holo- pioideae (Schrad.) Arn. (Boraginaceae). Sendtnera 5: 35-241. type GH bc GH00096176 photo!). Hilger, H. H. & N. Diane. 2003. A systematic analysis of Heliotropiaceae (Boraginales) based on trnL and ITS1 se- Observations. This variety is distributed in northwes- quence data. Botanische Jahrbücher für Systematik, Pflan- tern Argentina and southern Bolivia (Johnston, 1930). zengeschichte und Pflanzengeographie 125(1): 19-51. DOI: 10.1127/0006-8152/2003/0125-0019 Johnston, I. M. 1928. Studies in the Boraginaceae VII.1. The ACKNOWLEDGEMENTS South American species of Heliotropium. Contributions from the Gray Herbarium of Harvard University 81: 3-73. We thank Wilhelm Barthlott, Roberto Kiesling, Maximi- Johnston, I. M. 1930. Studies in the Boraginaceae VIII.I. Ob- lian Weigend and Jun Wen for support, and the curators of the servations on the species of Cordia and Tournefortia known consulted herbaria for permitting access to their collections. from Brazil, Paraguay, Uruguay and Argentina. Contributions This research received support from the SYNTHESYS pro- from the Gray Herbarium of Harvard University 92: 3-89. Luebert, F.; G. Brokamp; J. Wen; M. Weigend & H. H. Hilger. 2011. ject http://www.synthesys.info/ which is financed by the Phylogenetic relationships and morphological diversity in Neo- European
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