Gonolobus cthulhui (Apocynaceae), a new species from Oaxaca, Mexico
Background and Aims: In Mexico, the genus Gonolobus is currently represented by 43 species. Gonolobus has been studied for some regional floras and taxonomic novelties are continuously being described. In this context, during the review of the herbarium material and collections made in the state of...
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| Formato: | Online |
| Idioma: | eng spa |
| Publicado: |
Instituto de Ecología, A.C.
2022
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| Acceso en liña: | https://abm.ojs.inecol.mx/index.php/abm/article/view/2067 |
| _version_ | 1799771418614824960 |
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| author | Alvarado-Cárdenas, Leonardo O. Maya-Mandujano, Karen G. Chávez-Hernández, María Guadalupe |
| author_facet | Alvarado-Cárdenas, Leonardo O. Maya-Mandujano, Karen G. Chávez-Hernández, María Guadalupe |
| author_sort | Alvarado-Cárdenas, Leonardo O. |
| collection | ABM |
| description | Background and Aims: In Mexico, the genus Gonolobus is currently represented by 43 species. Gonolobus has been studied for some regional floras and taxonomic novelties are continuously being described. In this context, during the review of the herbarium material and collections made in the state of Oaxaca, a specimen that failed to be assigned to any described Gonolobus in Mexico and Mesoamerica was found. Therefore, the objective of this work was to describe a new species of Gonolobus from Oaxaca.
Methods: Eleven herbaria and five virtual collections were revised, and several field trips to Oaxaca were conducted in 2018 to collect specimens. The studied material was compared with other species with similar morphology, a comparative table was prepared, and a distribution map included. The conservation status of the species based on field observations according to the IUCN Red List criteria is presented.
Key results: A new species of Gonolobus from southeastern Oaxaca, Mexico, with large green corollas, is described herein. A description and images of the new species are provided. Gonolobus cthulhui is morphologically similar to G. leianthus and G. pancololote, but differs by its black-tipped and widely ovate to suborbicular sepals, pubescent diagonal pattern on the corolla lobes, and thinner and discontinuous faucal annulus. An Endangered (EN) conservation category is suggested for this species.
Conclusions: This discovery highlights Oaxaca as the second state, after Chiapas, with most species of Gonolobus (19 spp.), and Mexico as a center of diversity for the genus, with 44 species recorded, of which 52.2% are endemic to the country. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-2067 |
| institution | Acta Botanica Mexicana |
| language | eng spa |
| publishDate | 2022 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-20672022-12-05T22:54:54Z Gonolobus cthulhui (Apocynaceae), a new species from Oaxaca, Mexico Gonolobus cthulhui (Apocynaceae), una nueva especie de Oaxaca, México Alvarado-Cárdenas, Leonardo O. Maya-Mandujano, Karen G. Chávez-Hernández, María Guadalupe endemic species Gonolobus leianthus Gonolobus pancololote Lovecraft. especie endémica Gonolobus leianthus Gonolobus pancololote Lovecraft. Background and Aims: In Mexico, the genus Gonolobus is currently represented by 43 species. Gonolobus has been studied for some regional floras and taxonomic novelties are continuously being described. In this context, during the review of the herbarium material and collections made in the state of Oaxaca, a specimen that failed to be assigned to any described Gonolobus in Mexico and Mesoamerica was found. Therefore, the objective of this work was to describe a new species of Gonolobus from Oaxaca. Methods: Eleven herbaria and five virtual collections were revised, and several field trips to Oaxaca were conducted in 2018 to collect specimens. The studied material was compared with other species with similar morphology, a comparative table was prepared, and a distribution map included. The conservation status of the species based on field observations according to the IUCN Red List criteria is presented. Key results: A new species of Gonolobus from southeastern Oaxaca, Mexico, with large green corollas, is described herein. A description and images of the new species are provided. Gonolobus cthulhui is morphologically similar to G. leianthus and G. pancololote, but differs by its black-tipped and widely ovate to suborbicular sepals, pubescent diagonal pattern on the corolla lobes, and thinner and discontinuous faucal annulus. An Endangered (EN) conservation category is suggested for this species. Conclusions: This discovery highlights Oaxaca as the second state, after Chiapas, with most species of Gonolobus (19 spp.), and Mexico as a center of diversity for the genus, with 44 species recorded, of which 52.2% are endemic to the country. Antecedentes y Objetivos: En México, el género Gonolobus actualmente está representado por 43 especies. Gonolobus ha sido estudiado en algunas floras regionales y continuamente se describen novedades taxonómicas. En este contexto, durante la revisión del material de herbario y colectas realizadas en el estado de Oaxaca, se encontró un ejemplar que no pudo ser asignado a ningún Gonolobus descrito en México y Mesoamérica. Por ello, el objetivo de este trabajo fue describir una nueva especie de Gonolobus de Oaxaca. Métodos: Se revisaron 11 herbarios y cinco colecciones virtuales, y en 2018 se realizaron varios viajes de campo a Oaxaca para recolectar especímenes. El material estudiado se comparó con otros de morfología similar, se elaboró una tabla comparativa y se incluyó un mapa de distribución. Se presenta el estado de conservación de la especie, según los criterios de la Lista Roja de la UICN y observaciones de campo. Resultados clave: Se describe una nueva especie de Gonolobus del sureste de Oaxaca, México, con grandes corolas verdes. Se proporciona una descripción e imágenes de la nueva especie. Gonolobus cthulhui es morfológicamente similar a G. leianthus y G. pancololote, pero se diferencia por sus sépalos de punta negra y ampliamente ovados a suborbiculares, el patrón diagonal pubescente en los lóbulos de la corola y el anillo faucal más delgado y discontinuo. Se sugiere una categoría de conservación en peligro (EN) para esta especie. Conclusiones: Este descubrimiento destaca a Oaxaca como el segundo estado, después de Chiapas, con más especies de Gonolobus (19 spp.), y a México como un centro de diversidad para el género, con 44 especies registradas y 52.2% de las especies endémicas del país. Instituto de Ecología, A.C. 2022-07-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/xml application/epub+zip https://abm.ojs.inecol.mx/index.php/abm/article/view/2067 10.21829/abm129.2022.2067 Acta Botanica Mexicana; No. 129 (2022) Acta Botanica Mexicana; Núm. 129 (2022) 2448-7589 0187-7151 eng spa https://abm.ojs.inecol.mx/index.php/abm/article/view/2067/4233 https://abm.ojs.inecol.mx/index.php/abm/article/view/2067/4297 https://abm.ojs.inecol.mx/index.php/abm/article/view/2067/4234 https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Alvarado-Cárdenas, Leonardo O. Maya-Mandujano, Karen G. Chávez-Hernández, María Guadalupe Gonolobus cthulhui (Apocynaceae), a new species from Oaxaca, Mexico |
| title | Gonolobus cthulhui (Apocynaceae), a new species from Oaxaca, Mexico |
| title_full | Gonolobus cthulhui (Apocynaceae), a new species from Oaxaca, Mexico |
| title_fullStr | Gonolobus cthulhui (Apocynaceae), a new species from Oaxaca, Mexico |
| title_full_unstemmed | Gonolobus cthulhui (Apocynaceae), a new species from Oaxaca, Mexico |
| title_short | Gonolobus cthulhui (Apocynaceae), a new species from Oaxaca, Mexico |
| title_sort | gonolobus cthulhui (apocynaceae), a new species from oaxaca, mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/2067 |
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