A new species of Spigelia L. (Loganiaceae) from Mexico

Islas-Hernández, C. Sofia; Lozada‒Pérez, Lucio; Alvarado-Cárdenas, Leonardo O.

doi:10.11646/phytotaxa.303.2.2

Cited by 5 publications

(3 citation statements)

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“…Of the 29 species distributed in the NA region, 23 of them are found in Mexico, followed by the United States of America and Guatemala with six species each. This diversity corroborates Mexico as the center of diversity in NA for the genus (Gould, 1997;Islas-Hernández et al, 2017a). In addition to this high diversity, about 80% of the species distributed in NA are exclusive to this region, with Mexico, the United States of America and Cuba as the countries with the highest number of endemic species with fourteen, three and two, respectively.…”

Section: Discussionsupporting

confidence: 63%

“…The genus Spigelia has a considerable diversity in NA, with about 30% of the species in this region, underestimated in previous works (Gould, 1997;Fernández-Casas and Huft, 2009;Villaseñor, 2016), distributed in tropical and subtropical zones, with an important presence along the coasts, from the United States of America to Panama. The genus inhabits mainly in tropical deciduous and sub-deciduous forests, with a high number of species also present in humid forests, mountain mesophilic forest and coniferous and Quercus forest (Gould, 1997;Fernández-Casas, 1998;Islas-Hernández et al, 2017a).…”

Section: Discussionmentioning

confidence: 99%

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Sinopsis del género Spigelia (Loganiaceae) en Norteamérica, Centroamérica y el Caribe

Islas-Hernández,

Alvarado-Cárdenas

2023

Acta Bot. Mex.

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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.

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Section: Discussionsupporting

confidence: 63%

Section: Discussionmentioning

confidence: 99%

Sinopsis del género Spigelia (Loganiaceae) en Norteamérica, Centroamérica y el Caribe

Islas-Hernández,

Alvarado-Cárdenas

2023

Acta Bot. Mex.

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“…Despite its exclusive distribution in the American continent, its importance for conservation (Guimarães et al 2013) and strong potential for ornamental and pharmacological uses (Camurça‐Vasconcelos et al 2004, Struwe et al 2018), taxonomic studies of Spigelia are still sparse and a considerable number of nomenclatural issues persist, especially concerning typification. Most of the more recent literature are new species descriptions (Popovkin et al 2011, Islas‐Hernández et al 2017a, b2017b, Macedo et al 2019). The lack of a recent taxonomic revision, at local or wide scale, hampers a better understanding of species identity and geographic distribution.…”

Section: Introductionmentioning

confidence: 99%

Typifications in Spigelia (Loganiaceae) from Central and South America

Macedo

Buril

2021

Nordic Journal of Botany

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Nomenclatural issues are still present in the American genus Spigelia due to the absence of recent taxonomic revisions. In this study, we propose eight lectotypes and one neotype for Central and South American species. The protologues of Spigelia ambigua, S. asperifolia, S. brachystachya, S. cascatensis and S. riedeliana have no indication of the holotype herbarium, thus requiring lectotypifications. Spigelia beyrichiana var. breviflora and S. herzogiana were based on syntype gatherings and also require lectotypification. Spigelia stenocardia had its holotype destroyed in Berlin in 1943 and a lectotype is indicated here. The location of the type collection of S. beyrichiana is still unknown, therefore a neotype is hereby indicated.

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Synopsis of Loganiaceae in Pernambuco, Brazil

2022

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Loganiaceae is a member of the Gentianales order and comprises about 460 species in 16 genera, being mainly distributed in the tropical regions of the world. The Brazilian Neotropical region is one of the centers of diversity for two of the richest genera of Loganiaceae, Spigelia and Strychnos, justifying floristic efforts to better understand family diversity in this region. This study aims to update the taxonomic knowledge about the Loganiaceae of the state of Pernambuco, Northeastern Brazil, providing an identification key, diagnostic characters of the species emphasizing vegetative features, illustrations and photos, distribution maps, and occurrence within Conservation Units. We analyzed collections from 18 local herbaria and conducted field expeditions to strategical locations of the state between 2017 to 2019. In total, we identified 16 species belonging to three genera: Mitreola (1), Spigelia (8) and Strychnos (7). As shown in previous studies, the morphology of the carpoatlas was determinant in the recognition of Spigelia species. In Pernambuco, Mitreola petiolata, Spigelia flemmingiana, S. laurina, S. scabra, Strychnos atlantica, S. divaricans, S. mattogrossensis, and S. trinervis were found only in the Atlantic Forest, while Spigelia alborubra, S. linarioides, S. pernambucensis, Strychnos gardneri, and S. rubiginosa were found only in the Caatinga domain. Spigelia anthelmia, S. polystachya, and Strychnos parvifolia have continuous distribution between both phytogeographic domains, presenting high morphological variability in these areas. Among the 16 loganiaceous species, 13 belong to 20 different Conservation Units spread over the two phytogeographic domains, highlighting the importance of maintaining these areas for the conservation of biodiversity in the state.

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A new species of Spigelia L. (Loganiaceae) from Mexico

Cited by 5 publications

References 1 publication

Sinopsis del género Spigelia (Loganiaceae) en Norteamérica, Centroamérica y el Caribe

Sinopsis del género Spigelia (Loganiaceae) en Norteamérica, Centroamérica y el Caribe

Typifications in Spigelia (Loganiaceae) from Central and South America

Synopsis of Loganiaceae in Pernambuco, Brazil

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