Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean

Background and Aims: Spigelia is a Neotropical genus with about 90 species distributed from the United States of America to Argentina. The diversity of the genus presents a spatial separation with a group in North-Central America/ the Caribbean (NA) and another in South America (SA), each with an im...

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Main Authors: Islas-Hernández, C. Sofia, Alvarado-Cárdenas, Leonardo O.
Formato: Online
Idioma:eng
Publicado: Instituto de Ecología, A.C. 2023
Acceso en liña:https://abm.ojs.inecol.mx/index.php/abm/article/view/2202
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author Islas-Hernández, C. Sofia
Alvarado-Cárdenas, Leonardo O.
author_facet Islas-Hernández, C. Sofia
Alvarado-Cárdenas, Leonardo O.
author_sort Islas-Hernández, C. Sofia
collection ABM
description Background and Aims: Spigelia is a Neotropical genus with about 90 species distributed from the United States of America to Argentina. The diversity of the genus presents a spatial separation with a group in North-Central America/ the Caribbean (NA) and another in South America (SA), each with an important center of diversification. However, the systematic knowledge of the group has not been updated in the last 10 years, so the objective of this work is to generate a systematic synopsis for the genus distributed in the NA region. Methods: The work was carried out through the search for bibliographic information to obtain the taxonomic history, field work and review of herbarium material, based on which diagnostic descriptions and distribution maps were made. Key results: Twenty-nine species distributed in the NA region were found, which represents about 30% of the diversity of the genus, distributed in the tropical and subtropical zones. In the NA region, Mesoamerica is one of the regions in which plant diversity is concentrated, which classifies it as a hotspot. This work includes novel information on the morphology of the group, such as descriptions of the pollen and carpological characters, identification keys for regions in NA and distribution maps in the study area. Conclusions: This study represents the first taxonomic treatment for the genus Spigelia that includes all the species of the central and northern regions of the Americas. The information collected in this work may be useful to be integrated into phylogenetic analyzes that help resolve the infrageneric relationships of the group. Likewise, the application of potential distribution modeling tools that would allow locating areas for future collection, as well as the development of biogeographic analyzes that help us understand the distribution patterns of Spigelia diversity along the continent.
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spelling oai:oai.abm.ojs.inecol.mx:article-22022024-02-01T00:31:59Z Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean Sinopsis del género Spigelia (Loganiaceae) en Norteamérica, Centroamérica y el Caribe Islas-Hernández, C. Sofia Alvarado-Cárdenas, Leonardo O. conservación diagnosis diversidad distribución morfología taxonomía. conservation diagnosis distribution diversity morphology taxonomy. Background and Aims: Spigelia is a Neotropical genus with about 90 species distributed from the United States of America to Argentina. The diversity of the genus presents a spatial separation with a group in North-Central America/ the Caribbean (NA) and another in South America (SA), each with an important center of diversification. However, the systematic knowledge of the group has not been updated in the last 10 years, so the objective of this work is to generate a systematic synopsis for the genus distributed in the NA region. Methods: The work was carried out through the search for bibliographic information to obtain the taxonomic history, field work and review of herbarium material, based on which diagnostic descriptions and distribution maps were made. Key results: Twenty-nine species distributed in the NA region were found, which represents about 30% of the diversity of the genus, distributed in the tropical and subtropical zones. In the NA region, Mesoamerica is one of the regions in which plant diversity is concentrated, which classifies it as a hotspot. This work includes novel information on the morphology of the group, such as descriptions of the pollen and carpological characters, identification keys for regions in NA and distribution maps in the study area. Conclusions: This study represents the first taxonomic treatment for the genus Spigelia that includes all the species of the central and northern regions of the Americas. The information collected in this work may be useful to be integrated into phylogenetic analyzes that help resolve the infrageneric relationships of the group. Likewise, the application of potential distribution modeling tools that would allow locating areas for future collection, as well as the development of biogeographic analyzes that help us understand the distribution patterns of Spigelia diversity along the continent. Antecedentes y Objetivos: Spigelia es un género neotropical con cerca de 90 especies distribuidas desde los Estados Unidos de América hasta Argentina. La diversidad del género presenta una separación espacial entre un grupo en Norte-Centroamérica/Caribe (NA) y otro en Sudamérica (SA), cada uno con un importante centro de diversificación. Sin embargo, el conocimiento sistemático del grupo no ha sido actualizado en los últimos 10 años, por lo que el objetivo de este trabajo es generar una sinopsis sistemática para el género distribuido en la región NA. Métodos: El trabajo se realizó a través de la búsqueda de información bibliográfica para obtener la historia taxonómica, así como trabajo de campo y revisión de material herborizado, a partir del cual se realizaron descripciones diagnósticas y mapas de distribución. Resultados clave: Se encontraron 29 especies distribuidas en la región NA, lo que representa alrededor de 30% de la diversidad del género, en las zonas tropical y subtropical. En la región NA, Mesoamérica es una de las regiones en las que se concentra la diversidad vegetal, lo que la cataloga como hotspot. El trabajo incluye información novedosa sobre la morfología del grupo, como descripciones de los caracteres polínicos y carpológicos, claves de identificación por regiones en NA y mapas de distribución en el área de estudio. Conclusiones: Este estudio representa el primer tratamiento taxonómico para el género Spigelia que incluye todas las especies de la región central y norte del continente americano. La información recopilada en este trabajo puede ser útil para ser integrada en análisis filogenéticos que ayuden a resolver las relaciones intragenéricas del grupo. Asimismo, la aplicación de herramientas de modelado de distribución potencial que permitan ubicar áreas para futuras colectas, así como el desarrollo de análisis biogeográficos que ayuden a comprender la distribución de la diversidad de Spigelia a lo largo del continente. Instituto de Ecología, A.C. 2023-08-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/epub+zip https://abm.ojs.inecol.mx/index.php/abm/article/view/2202 10.21829/abm130.2023.2202 Acta Botanica Mexicana; No. 130 (2023) Acta Botanica Mexicana; Núm. 130 (2023) 2448-7589 0187-7151 eng https://abm.ojs.inecol.mx/index.php/abm/article/view/2202/4445 https://abm.ojs.inecol.mx/index.php/abm/article/view/2202/4446 https://creativecommons.org/licenses/by-nc/4.0
spellingShingle Islas-Hernández, C. Sofia
Alvarado-Cárdenas, Leonardo O.
Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean
title Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean
title_full Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean
title_fullStr Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean
title_full_unstemmed Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean
title_short Synopsis of the genus Spigelia (Loganiaceae) in North America, Central America, and the Caribbean
title_sort synopsis of the genus spigelia (loganiaceae) in north america, central america, and the caribbean
url https://abm.ojs.inecol.mx/index.php/abm/article/view/2202
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