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| Croton antioquensis Zapata-Corr. & Paz-López, in Zapata-Correa, Paz-López, Torrejano-Munevar et Berrío-Montoya, 2024. |
Abstract
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.
Keywords: Cauca River Canyon, Crotonoideae, Dragos, Malpighiales, Santa Fe de Antioquia
Croton antioquensis Zapata-Corr. & Paz-López, sp. nov.
Diego Alejandro Zapata-Correa, Carlos A. Paz-López, Andrés F. Torrejano-Munevar and Sebastián Berrío-Montoya. 2024. A New Species of Croton section Geiseleria (Euphorbiaceae) from the Canyon of the Cauca River (Antioquia), Northwestern Colombia. DARWINIANA, nueva serie. 12(2): 284-294. DOI: doi.org/10.14522/darwiniana.2024.122.1246
