A new species of Croton section Geiseleria (Euphorbiaceae) from the Canyon of the Cauca River (Antioquia), Northwestern Colombia
DOI:
https://doi.org/10.14522/darwiniana.2024.122.1246Keywords:
Cauca River Canyon, Crotonoideae, Dragos, Malpighiales, Santa Fe de AntioquiaAbstract
This study describes a new species of Croton section Geiseleria (Euphorbiaceae) based on specimens collected in remnants of vegetation in the municipality of Santa Fe de Antioquia (Antioquia), Northwestern Colombia. Croton antioquensis resembles C. adenodontus, C. bidentatus and C. subsuavis, however, it is differentiated by a set of characters associated with its floral and vegetative morphology, in addition to its geographic distribution. The new species is known from a single locality in an area of occupancy (AOO) of less than 4 km2 with multiple threats of anthropogenic origin. We suggest its inclusion in the category of Critically Endangered (CR) taking into account the IUCN guidelines. A key to the species of Croton sect. Geiseleria in Colombia is included.
References
Arias López, L. A. 2011. Estructura, clasificación y evolución del relieve en el departamento de Antioquia, en R. Callejas & A. Idárraga. (eds.), Flora de Antioquia: catálogo de las plantas vasculares. vol I. Introducción, pp. 19-180. Bogotá D. C.: Editorial D´Vinni.
Berry, P. E.; R. Riina & B. van Ee. 2016. Croton, en R. Bernal, S. R. Gradstein & M. Celis. (eds.), Catálogo de plantas y líquenes de Colombia, pp. 1229-1234. Bogotá D. C.: Universidad Nacional de Colombia.
Berry, P. E.; K. Kainulainen & B. W. van Ee. 2017. A Nomenclator of Croton (Euphorbiaceae) in Madagascar, the Comoros Archipelago, and the Mascarene Islands. Phytokeys 90: 1-87. DOI: https://doi.org/10.3897/phytokeys.90.20586
Cardiel, J. M. 1993. Estudios botánicos en la Guayana Colombiana, III. Dos nuevas Euphorbiaceae de la Sierra de Chiribiquete. Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales 18(71): 469-474
Dauby, G.; T. Stévart, V. Droissart, A. Cosiaux, V. Deblauwe, M. Simo-Droissart, M. S. Sosef, P. P. Lowry, G. E. Schatz, R. E. Gereau & T. L. Couvreur. 2017. ConR: An R package to assist large-scale multispecies preliminary conservation assessments using distribution data. Ecology and evolution 7: 11292-11303. DOI: https://doi.org/10.1002/ece3.3704
Ellis, B.; D. C. Daly, L. J. Hickey, K. R. Johnson, J. D. Mitchell, P. Wilf & S. L. Wing. 2009. Manual of Leaf Architecture. 1st ed. Ithaca, New York: Cornell University Press.
ESRI. 2020. ArcMap 10.8 [Software]. Environmental Systems Research Institute, Inc.
Espinal, S. 1977. Zonas de vida o formaciones vegetales de Colombia: Memoria explicativa sobre el mapa ecológico. Bogotá D. C.: Instituto Geográfico Agustín Codazzi.
Harris, J. G. & M. W. Harris. 2001. Plant Identification Terminology: An Illustrated Glossary (2nd ed.). Payson. Utah: Spring Lake Publishing.
JSTOR. Global Plants database, 2024. https://plants.jstor.org/
Murillo-A, J. 1999. Composición y distribución del género Croton (Euphorbiaceae) en Colombia, con cuatro especies nuevas. Caldasia 21(2): 141-166.
Murillo, J.; P. E. Berry & M. V. Arbeláez. 2000. Una nueva especie de Croton (Euphorbiaceae) de la Guayana Colombiana. Novon 10(1): 64-66. DOI: https://doi.org/10.2307/3393187
Murillo-A., J. 2004. Las Euphorbiaceae de Colombia. Biota Colombiana 5(2): 183-200. DOI: 10.21068/bc.v5i2.144
R Core Team. 2017. R: A language and environment for statistical computing. R Foundation for Statistical Computing. http://www.R-project.org/
Reflora – Herbario Virtual. 2024, https://reflora.jbrj.gov.br/reflora/herbarioVirtual/
Riina, R.; B. W. van Ee, M. B. R. Caruzo, D. S. Carneiro-Torres, R. F. dos Santos & P. E. Berry. 2021. The Neotropical Croton sect. Geiseleria (Euphorbiaceae): Classification update, phylogenetic framework, and seven new species from South America. Annals of the Missouri Botanical Garden 106(1): 111-166. DOI: https://doi.org/10.3417/2021669
Silva, M. J. D.; R. C. Sodré, A. A. Alonso & I. S. dos Santos. 2024. A new species of Croton sect. Geiseleria (Euphorbiaceae) from Brazil, supported by macro- and micromorphological data. Phytotaxa 646(2): 143-156. DOI: 10.11646/phytotaxa.646.2.4
Sodré, R.C. & M. J. da Silva. 2017. An overlooked new species of Croton section Geiseleria (Euphorbiaceae) from the Brazilian Cerrado, with a key to the species of this section occurring in the state of Goiás and in the Distrito Federal. Phytotaxa 329(2): 127-138. https://doi.org/10.11646/phytotaxa.329.2.3
Sodré, R. C.; M. Ferreira de Sales, P. E. Berry & M. J. da Silva. 2019. Taxonomic synopsis of Croton section Geiseleria (Euphorbiaceae) in Brazil, including description of a new species. Phytotaxa 417(1): 1-105. DOI: https://doi.org/10.11646/phytotaxa.417.1.1
Thiers, B. [permanentemente actualizado, consulta 2024]. Index Herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Disponible en http://sweetgum.nybg.org/science/ih/
UICN. 2012. Categorías y Criterios de la Lista Roja de la UICN: Versión 3.1. Segunda edición. Gland, Suiza y Cambridge, Reino Unido: UICN. vi + 34 pp. Originalmente publicado como IUCN Red List Categories and Criteria: Version 3.1. Second edition. (Gland, Switzerland and Cambridge, UK: IUCN, 2012).
van Ee, B. W.; R. Riina & P. E. Berry. 2011. A revised infrageneric classification and molecular phylogeny of New World Croton (Euphorbiaceae). Taxon 60(3): 791-823. DOI: https://doi.org/10.1002/tax.603013
van Ee, B. W.; P. I. Forster & P. E. Berry. 2015. Phylogenetic relationships and a new sectional classification of Croton (Euphorbiaceae) in Australia. Australian Systematic Botany 28: 219-233. DOI: https://doi.org/10.1071/SB15016
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