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Issue: Vol. 666 No. 3: 3 Oct. 2024
Type: Article
Published: 2024-10-03
DOI: 10.11646/phytotaxa.666.3.5
Page range: 216-222
Abstract views: 35
PDF downloaded: 2

A new endemic Begonia species (sect. Knesebeckia, Begoniaceae) from the south-western montane forest remnants of Ecuador

Herbario QCA, Pontificia Universidad Católica del Ecuador
Fundación de Conservación Jocotoco, Valladolid N24-414 y Luis Cordero, Quito, 170525 Ecuador
Fundación de Conservación Jocotoco, Valladolid N24-414 y Luis Cordero, Quito, 170525 Ecuador
Fundación de Conservación Jocotoco, Valladolid N24-414 y Luis Cordero, Quito, 170525 Ecuador
Department of Biology, Earth, and Environmental Sciences, Pennsylvania Western University, California Campus, California, PA 15419-1394, U.S.A.
Andes Cloud forest Conservation El Oro Jocotoco Foundation Neotropics Taxonomy Eudicots

Abstract

Begonia jocotocoi is a new species described from the Buenaventura Reserve in El Oro Province, south-west Ecuador. The new species morphologically resembles Begonia serotina, but differs by its minutely bullate leaf lamina (vs. smooth), the dense red long trichomes that cover the petioles and the lower surface of the leaf lamina, the latter of which distinctly become purple at maturity (vs. usually glabrous or occasionally with an indument of minute glandular white hairs and pale green below), presence of a pair of bracteoles directly beneath the pistillate flowers (vs. bracteoles absent), and the pedicels and also sometimes the abaxial surfaces of most floral whorls having a sparse cover of glandular hairs (vs. glabrous to puberulous). Photos of the new species and a distribution map are provided. Relationships with other species are discussed and the species’ preliminary conservation status is assigned as critically endangered (CR).

References

  1. Cerón, C.E., Palacios, W., Valencia, R. & Sierra, R. (1999) Las Formaciones Naturales de la Costa del Ecuador. In: Sierra, R. (Ed.) Propuesta Preliminar de un Sistema de Clasificación de Vegetación para el Ecuador Continental. Proyecto INEFAN/GEF-BIRF y EcoCiencia, Quito, pp. 55–78.
  2. de Candolle, A. (1859) Mémoire sur la famille des Bégoniaceas. Annales des Sciences Naturelles; Botanique, sér 4, 11: 93–115.
  3. de Candolle, C. (1919) Begoniaceae Centrali-Americanae et Ecuadorensis. Smithsonian Miscellaneous Collections 69 (12): 1–10.
  4. Herzog, T.C.J. (1909) Siphonogamae novae Bolivienses in itinere per Boliviam orientalem ab auctore lectae. Repertorium Specierum Novarum Regni Vegetabilis 7: 49–69.
  5. Hughes, M., Moonlight, P.W., Jara-Muñoz, A., Tebbitt, M.C., Wilson, H.P., Zhong, K. & Pullan, M. (2015) Begonia Resource Centre. Royal Botanic Garden Edinburgh. Available from: http://padme.rbge.org.uk/begonia/ (accessed 2 October 2024)
  6. Humboldt, F.W.H.A.v., Bonpland, A.J.A. & Kunth, K.S. (1825) Nova Genera et Species Plantarum (quarto ed.), vol. 7. Gide Fils, Paris.
  7. Irmscher, E. (1937) Begoniaceae. Bibliotheca Botanica 116: 111–114.
  8. IUCN Standards and Petitions Committee (2024) Guidelines for using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Committee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 31 August 2024).
  9. Linnaeus, C. (1753) Species Plantarum 2. Salvius, Stockholm, 639 pp.
  10. Link, H.F. & Otto, F. (1829) Icones Plantarum Rariorum Horti Regii Botanici Berolinensis cum descriptionibus et colendi ratione…Erster Band 4, Berlin, 128 pp.
  11. Ministerio del Ambiente del Ecuador (2013) Sistema de clasificación de los ecosistemas del Ecuador continental. Subsecretaria de Patrimonio Natural, Quito, 232 pp.
  12. Moonlight, P.W., Hughes, M. & Tebbitt, M.C. (2017) Taxonomy of Begonia albomaculata and description of two new species endemic to Peru. Edinburgh Journal of Botany 74 (2): 179–198. https://doi.org/10.1017/S0960428617000075
  13. Moonlight, P.W., Ardi, W.H., Arroyo Padilla, L., Chung, K.-F., Fuller, D., Girmansyah, D., Hollands, R., Jara-Muñoz, A., Kiew, R., Leong, W.-C., Liu, Y., Mahardika, A., Marasinghe, L.D.K., O’Connor, M., Peng, C.-I, Pérez, Á.J., Phutthai ,T., Pullan, M., Rajbhandary, S., Reynel, C., Rubite, R.R., Sang, J., Scherberich, D., Shui, Y.-M., Tebbitt, M.C., Thomas, D.C., Wilson, H.P., Zaini, N.H. & Hughes, M. (2018) Dividing and conquering the fastest-growing genus: towards a natural sectional classification of the mega-diverse genus Begonia (Begoniaceae). Taxon 67 (2): 267–323. https://doi.org/10.12705/672.3
  14. Moonlight, P.W. & Pérez, Á.J. (2022) A new species of Begonia sect. Ruizopavonia from Colombia and Ecuador. Edinburgh Journal of Botany 79: 1–9. https://doi.org/10.24823/ejb.2022.401
  15. Moonlight, P.W., Jara-Muñoz, O.A., Purvis, D.A., Delves, J., Allen, J.P. & Reynel, C. (2023) The genus Begonia (Begoniaceae) in Peru. European Journal of Taxonomy 881 (1): 1–334. https://doi.org/10.5852/ejt.2023.881.2175
  16. Myers, N., Mittermeier, R.A., Mittermeier, C.G., da Fonseca, G.A.B & Kent, J. (2000) Biodiversity hotspots for conservation priorities. Nature 403: 853–858. https://doi.org/10.1038/35002501
  17. Pérez, Á.J., Rea, E., Burgess, K.S., Mena-Olmedo, P., Cabrela, L., León, J. & Vázquez-García, J.A. (2023) A new endemic Magnolia species (M. sect. Talauma, Magnoliaceae) from the south western montane forest remnants of Ecuador. Phytotaxa 592 (2): 119–126. https://doi.org/10.11646/phytotaxa.592.2.5
  18. Smith, L.B. & Schubert, B.G. (1941) Flora of Peru, Begoniaceae. Publications of the Field Museum of Natural History, Botanical Series 13 (4/1): 181–202.
  19. Smith, L.B. & Wasshausen, D.C. (1986) Begoniaceae. In: Harling, G. & Andersson, L. (Eds.) Flora of Ecuador, vol. 25. Swedish Research Councils. Stockholm, pp. 1–66.
  20. Tebbitt, M.C., Toapanta, C.E. & Pérez, Á.J. (2015) Taxonomy of Begonia serotina (Begoniaceae) and allied species. Edinburgh Journal of Botany 72 (3): 343–352. https://doi.org/10.1017/S0960428615000049
  21. Tebbitt, M.C., Hughes, M., Pérez, Á.J. & Moonlight, P.W. (2017) Taxonomy of the Begonia tilifolia group, including descriptions of two new species. Edinburgh Journal of Botany 74 (2): 199–215. https://doi.org/10.1017/S0960428617000087
  22. Tebbitt, M.C. & Stevenson, P.R. (2018) A new Species of Begonia sect. Gobenia (Begoniaceae) from Colombia and Ecuador. Novon 26 (2): 252–255.
  23. Tebbitt, M.C. & Pérez, Á.J. (2022) A revision of Begonia section Gobenia. Systematic Botany Monographs 113: 1–62.
  24. Thiers, B. (Ed.) (2024 [continually updated]) Index herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 15 March 2024)