Notes on Ipomoea (Convolvulaceae) from Ecuador
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2024
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Wiley
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Wood, J. R. I., Muñoz-Rodríguez, P., Wells, T., Espinel-Ortiz, D. A., Romoleroux, K., Cerón Martínez, C. E., Cornejo, X., & Scotland, R. W. (2024). Notes on ipomoea (Convolvulaceae) from ecuador. Kew Bulletin, 79(4), 915-939. https://doi.org/10.1007/s12225-024-10186-4
Abstract
Fieldwork, examination of herbarium specimens and photographic images, supported by molecular sequencing have resulted in the re-interpretation of a number of species of Ipomoea L. found in Ecuador and the recognition of four new species. Ipomoea ophiodes Standl. & Steyerm. is shown to be a distinct species from I. regnellii Meisn. and their contrasting distribution is mapped. An unusual variation in I. setosa Ker Gawl. is discussed and illustrated. It is shown that, whereas I. velardei O’Donell is present in the south of Ecuador, records of I. jujuyensis O’Donell are probably all errors for I. quitensis J.R.I.Wood & Cerón, which is described as a new species endemic to Ecuador. Three other endemic species all known from single locations, I. ceronii J.R.I.Wood & P.Muñoz, I. condorensis J.R.I.Wood & Scotland and I. papyrifera J.R.I.Wood & Scotland are described as new. The full distribution of I. aequatoriensis T.Wells & P.Muñoz is mapped as a result of recent fieldwork and I. amazonica (D.F.Austin & Staples) J.R.I.Wood & Scotland is recorded from Ecuador for the first time. Taxonomic notes, information on habitat and distribution, maps, line drawings and photographs illustrate the species discussed. A key to all 57 species of Ipomoea recorded from Ecuador is provided to facilitate identification.
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Funding for our research in Ecuador was provided by a BBSRC research grant to Robert Scotland (T001445/1). We are grateful to the Ministerio del Ambiente, Agua y Transición Ecológica of the government of Ecuador for approval of our Project under the title “Genética de las poblaciones silvestres del género Ipomoea (Convolvulaceae) de las costas ecuatorianas, con énfasis en los parientes silvestres de Ipomoea batatas” (contrato marco MAAE-DBI-CM-2021-0168) with extension approved under the new contrato marco MAATE-DBI-CM-2023-0292. The support of Dra Priscila Muriel is gratefully acknowledged. We also acknowledge the help of all those who facilitated our access to the herbaria in QCA, to Dra Carmita Reyes of QAP and of Dra Consuelo Montalvo of Q, Dra Marcia Peñafiel Cevallos of QCNE, Dra Carmen Bonifaz of GUAY and Dr Zhofre Aguirre Mendoza, director of LOJA. We thank the Comunidad Agua Blanca (Machala) for granting us access to explore the area, and especially to Leopoldo Ventura for his help during our visit. We also thank the staff at Bosque Protector Cerro Blanco (Guayas) for their help and guidance during our visit. A helpful review by Dr Lars Chatrou served to correct various errors we had missed. At Oxford we would like to thank Rosemary Wise for preparing line drawings and John Baker for help in preparing the maps.