The genus Metastelma (Asclepiadoideae-Asclepiadeae-Metastelmatinae) in South America

Molecular and morphological analyses are used to circumscribe the genus Metastelma in South America. In northem South America, fourteen species are identified, nine o f them new; and two species are found in Southern South America, one o f them new. The northem South American lineage is retrieved as...

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Autores principales: Uede-Schumann, S., Meve, U.
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Instituto de Botánica del Nordeste 2023
Acceso en línea:https://revistas.unne.edu.ar/index.php/bon/article/view/7261
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Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
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spelling I48-R154-article-72612023-12-27T22:56:29Z The genus Metastelma (Asclepiadoideae-Asclepiadeae-Metastelmatinae) in South America Uede-Schumann, S. Meve, U. Molecular and morphological analyses are used to circumscribe the genus Metastelma in South America. In northem South America, fourteen species are identified, nine o f them new; and two species are found in Southern South America, one o f them new. The northem South American lineage is retrieved as sister to a clade comprising the type species of Metastelma, M. parviflorum, one o f several Caribbean lineages. The Southern South American lineage remains unresolved. The Central American lineage remains poorly supported monophyletic, but ineludes a species from Jamaica, M. priorii. Several specimens from the Andes o f Argentina and Bolivia are retrieved in a well-supported clade outside Metastelma s.s. For these specimens, a new genus is described comprising presently seven species. Four o f these species are transferred from Metastelma, one from Ditassa, and two species are described as new Stelmation E.Foum. is resurrected, comprising presently a single species, S. myrtifolium from Brazil. Metastelma giuliettianum and M. harleyi, also from Brazil, are excluded from Metastelma, but cannot yet be transferred to another genus, because the taxonomy o f Metastelmatinae is still in flux. Thus, Metastelma s.s. is absent from Brazil. Instituto de Botánica del Nordeste 2023-12-27 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/bon/article/view/7261 Bonplandia; Vol. 32 (2023): Suplemento Bonplandia; Vol. 32 (2023): Suplemento 1853-8460 0524-0476 eng https://revistas.unne.edu.ar/index.php/bon/article/view/7261/6668 Derechos de autor 2023 Bonplandia http://creativecommons.org/licenses/by/4.0
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Inglés
format Artículo revista
author Uede-Schumann, S.
Meve, U.
spellingShingle Uede-Schumann, S.
Meve, U.
The genus Metastelma (Asclepiadoideae-Asclepiadeae-Metastelmatinae) in South America
author_facet Uede-Schumann, S.
Meve, U.
author_sort Uede-Schumann, S.
title The genus Metastelma (Asclepiadoideae-Asclepiadeae-Metastelmatinae) in South America
title_short The genus Metastelma (Asclepiadoideae-Asclepiadeae-Metastelmatinae) in South America
title_full The genus Metastelma (Asclepiadoideae-Asclepiadeae-Metastelmatinae) in South America
title_fullStr The genus Metastelma (Asclepiadoideae-Asclepiadeae-Metastelmatinae) in South America
title_full_unstemmed The genus Metastelma (Asclepiadoideae-Asclepiadeae-Metastelmatinae) in South America
title_sort genus metastelma (asclepiadoideae-asclepiadeae-metastelmatinae) in south america
description Molecular and morphological analyses are used to circumscribe the genus Metastelma in South America. In northem South America, fourteen species are identified, nine o f them new; and two species are found in Southern South America, one o f them new. The northem South American lineage is retrieved as sister to a clade comprising the type species of Metastelma, M. parviflorum, one o f several Caribbean lineages. The Southern South American lineage remains unresolved. The Central American lineage remains poorly supported monophyletic, but ineludes a species from Jamaica, M. priorii. Several specimens from the Andes o f Argentina and Bolivia are retrieved in a well-supported clade outside Metastelma s.s. For these specimens, a new genus is described comprising presently seven species. Four o f these species are transferred from Metastelma, one from Ditassa, and two species are described as new Stelmation E.Foum. is resurrected, comprising presently a single species, S. myrtifolium from Brazil. Metastelma giuliettianum and M. harleyi, also from Brazil, are excluded from Metastelma, but cannot yet be transferred to another genus, because the taxonomy o f Metastelmatinae is still in flux. Thus, Metastelma s.s. is absent from Brazil.
publisher Instituto de Botánica del Nordeste
publishDate 2023
url https://revistas.unne.edu.ar/index.php/bon/article/view/7261
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first_indexed 2024-08-21T22:37:00Z
last_indexed 2024-08-21T22:37:00Z
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