Gonolobus gonzaleziarum (Apocynaceae), a new species from the Tropical Madrean ecoregion in the Sierra Madre Occidental, Mexico
Background and Aims: Gonolobus comprises around 150 species in the world, with just over 40 of them distributed in Mexico. In the last two years, at least five new species have been described for this country. This paper describes a new species within the subgenus Pseudolachnostoma.Methods: Thirteen...
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| Materiálatiipa: | Online |
| Giella: | spa |
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Instituto de Ecología, A.C.
2023
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| Liŋkkat: | https://abm.ojs.inecol.mx/index.php/abm/article/view/2153 |
| _version_ | 1799771428140089344 |
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| author | Pío-León, Juan F. Castro-Castro, Arturo Alvarado-Cárdenas, Leonardo O. |
| author_facet | Pío-León, Juan F. Castro-Castro, Arturo Alvarado-Cárdenas, Leonardo O. |
| author_sort | Pío-León, Juan F. |
| collection | ABM |
| description | Background and Aims: Gonolobus comprises around 150 species in the world, with just over 40 of them distributed in Mexico. In the last two years, at least five new species have been described for this country. This paper describes a new species within the subgenus Pseudolachnostoma.Methods: Thirteen herbaria, three digital databases, and specialized literature were revised. Based on this, similar species were compared, and an identification key was generated. Field expeditions were made from 2019 to 2022 to gather botanical collections and monitor the phenology of the species of interest. The cohesive species concept was proposed as an explanatory hypothesis for the recognition of the taxa discussed here. Key results: The new species, Gonolobus gonzaleriarum, is described and located in two forests of Pinus-Quercus between the southeastern and southwestern limits of the states of Sinaloa and Durango, respectively. It differs from the species of the subgenus Pseudolachnostoma by having a gynostegium with a reduced stipe, lobes of the corolla and sepals of shorter length than the tube, citrus aroma, and a dense inflorescence. We included photographic plates, and an illustration with the distinctive characters, as well as a dichotomous key for the species of the subgenus Pseudolachnostoma. Based on its reduced range and impacted habitat, it is considered a threatened species, according to IUCN criteria.
Conclusions: With the present discovery, the genus Gonolobus reaches 45 species in Mexico with 24 endemics. Gonolobus gonzaleriarum has great ornamental potential considering its conspicuous inflorescences and pleasant citrus aroma, which could encourage strategies for its conservation, since it is found in a restricted distribution and threatened habitat. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-2153 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2023 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-21532024-02-01T00:31:59Z Gonolobus gonzaleziarum (Apocynaceae), a new species from the Tropical Madrean ecoregion in the Sierra Madre Occidental, Mexico Gonolobus gonzaleziarum (Apocynaceae), especie nueva de la ecorregión Madrense Tropical de la Sierra Madre Occidental, México Pío-León, Juan F. Castro-Castro, Arturo Alvarado-Cárdenas, Leonardo O. endemismo Gonolobinae Gonolobus arizonicus Pseudolachnostoma endemism Gonolobinae Gonolobus arizonicum Pseudolachnostoma Background and Aims: Gonolobus comprises around 150 species in the world, with just over 40 of them distributed in Mexico. In the last two years, at least five new species have been described for this country. This paper describes a new species within the subgenus Pseudolachnostoma.Methods: Thirteen herbaria, three digital databases, and specialized literature were revised. Based on this, similar species were compared, and an identification key was generated. Field expeditions were made from 2019 to 2022 to gather botanical collections and monitor the phenology of the species of interest. The cohesive species concept was proposed as an explanatory hypothesis for the recognition of the taxa discussed here. Key results: The new species, Gonolobus gonzaleriarum, is described and located in two forests of Pinus-Quercus between the southeastern and southwestern limits of the states of Sinaloa and Durango, respectively. It differs from the species of the subgenus Pseudolachnostoma by having a gynostegium with a reduced stipe, lobes of the corolla and sepals of shorter length than the tube, citrus aroma, and a dense inflorescence. We included photographic plates, and an illustration with the distinctive characters, as well as a dichotomous key for the species of the subgenus Pseudolachnostoma. Based on its reduced range and impacted habitat, it is considered a threatened species, according to IUCN criteria. Conclusions: With the present discovery, the genus Gonolobus reaches 45 species in Mexico with 24 endemics. Gonolobus gonzaleriarum has great ornamental potential considering its conspicuous inflorescences and pleasant citrus aroma, which could encourage strategies for its conservation, since it is found in a restricted distribution and threatened habitat. Antecedentes y Objetivos: Gonolobus comprende alrededor de 150 especies en el mundo, con poco más de 40 de ellas distribuidas en México. En los últimos dos años se han descrito al menos cinco nuevas especies de este país. En el presente trabajo se describe una nueva especie dentro del subgénero Pseudolachnostoma. Métodos: Se revisaron 13 herbarios, tres bases de datos digitales y literatura especializada. Con base en esto se compararon las especies similares y se generó una clave de identificación. Se realizaron expediciones a campo de 2019 a 2022 y se colectó y monitoreó la fenología de la especie de interés. Se planteó como hipótesis explicativa el concepto cohesivo de especie para el reconocimiento de los taxones aquí tratados. Resultados clave: Se describe la especie nueva Gonolobus gonzaleriarum, conocida de dos localidades de bosques de Pinus-Quercus entre los límites sureste y suroeste de los estados de Sinaloa y Durango, respectivamente. Se diferencia de las especies del subgénero Pseudolachnostoma por poseer ginostegio con un estípite reducido, lóbulos de la corola y sépalos de menor longitud que el tubo, aroma cítrico e inflorescencia densa. Se incluyen láminas fotográficas y una ilustración con los caracteres distintivos de la nueva especie, así como una clave dicotómica con las especies del subgénero Pseudolachnostoma. Con base en su área de distribución reducida y hábitat impactado, se considera una especie amenazada de acuerdo con los criterios de la IUCN.Conclusiones: Con el presente descubrimiento, el género Gonolobus llega a 45 especies en México con 24 endémicas. Gonolobus gonzaleriarum se considera con gran potencial ornamental por sus inflorescencias conspicuas y agradable aroma cítrico, lo que motiva en fomentar estrategias para su conservación, ya que se encuentra en una distribución restringida y hábitat amenazado. Instituto de Ecología, A.C. 2023-02-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/xml application/epub+zip https://abm.ojs.inecol.mx/index.php/abm/article/view/2153 10.21829/abm130.2023.2153 Acta Botanica Mexicana; No. 130 (2023) Acta Botanica Mexicana; Núm. 130 (2023) 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/2153/4366 https://abm.ojs.inecol.mx/index.php/abm/article/view/2153/4376 https://abm.ojs.inecol.mx/index.php/abm/article/view/2153/4367 https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Pío-León, Juan F. Castro-Castro, Arturo Alvarado-Cárdenas, Leonardo O. Gonolobus gonzaleziarum (Apocynaceae), a new species from the Tropical Madrean ecoregion in the Sierra Madre Occidental, Mexico |
| title | Gonolobus gonzaleziarum (Apocynaceae), a new species from the Tropical Madrean ecoregion in the Sierra Madre Occidental, Mexico |
| title_full | Gonolobus gonzaleziarum (Apocynaceae), a new species from the Tropical Madrean ecoregion in the Sierra Madre Occidental, Mexico |
| title_fullStr | Gonolobus gonzaleziarum (Apocynaceae), a new species from the Tropical Madrean ecoregion in the Sierra Madre Occidental, Mexico |
| title_full_unstemmed | Gonolobus gonzaleziarum (Apocynaceae), a new species from the Tropical Madrean ecoregion in the Sierra Madre Occidental, Mexico |
| title_short | Gonolobus gonzaleziarum (Apocynaceae), a new species from the Tropical Madrean ecoregion in the Sierra Madre Occidental, Mexico |
| title_sort | gonolobus gonzaleziarum (apocynaceae), a new species from the tropical madrean ecoregion in the sierra madre occidental, mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/2153 |
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