Description of Meriania alexandrae (Melastomataceae, Merianieae), a new species of Colombia, and synopsis of the Selvaflorensis complex
Background and Aims: Meriania is a Neotropical genus of trees and shrubs, comprising approximately 120 species distributed from southern Mexico to Brazil, Bolivia, and the Antilles. In Colombia, associated with the Western and Central Andes, there exists a species complex of Meriania with a set of u...
| Những tác giả chính: | , |
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| Định dạng: | Online |
| Ngôn ngữ: | spa |
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Instituto de Ecología, A.C.
2023
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| Truy cập trực tuyến: | https://abm.ojs.inecol.mx/index.php/abm/article/view/2252 |
| _version_ | 1799771438379433984 |
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| author | Posada-Herrera, Juan Mauricio Mendoza-Cifuentes, Humberto |
| author_facet | Posada-Herrera, Juan Mauricio Mendoza-Cifuentes, Humberto |
| author_sort | Posada-Herrera, Juan Mauricio |
| collection | ABM |
| description | Background and Aims: Meriania is a Neotropical genus of trees and shrubs, comprising approximately 120 species distributed from southern Mexico to Brazil, Bolivia, and the Antilles. In Colombia, associated with the Western and Central Andes, there exists a species complex of Meriania with a set of unique characteristics that distinguishes it from other Andean groups, referred to as the Selvaflorensis complex. The aim of this article is to describe a new species of Meriania associated with this complex, as well as to document the species within this group and their distributions.Methods: Based on a recent collection, the examination of specimens in Colombian herbaria, images in JSTOR Global Plants, and literature on the genus in Colombia, a new species of Meriania is described and illustrated, and categorized according to the IUCN criteria. The Selvaflorensis complex is established within the genus, its relationships are discussed, distinctive traits are documented, a species synopsis is provided, and an identification key and table of primary characteristics for their recognition are presented. Key results: Meriania alexandrae sp. nov. is recognized by its shrubby habit, subpeltate leaves with glandular trichomes, flowers with apiculate and circumscissile calyptras, dimorphic stamens, and filiform seeds. It is endemic to Colombia, and it is suggested to be Endangered (EN). Together with four other species, it constitutes the new complex referred to as Selvaflorensis, characterized by the presence of glandular trichomes on leaves, calyptrate flowers, and filiform seeds. This complex is restricted to the biogeographical region known as the Western Cordillera of Colombia. Additionally, as a result of collection review, two paratypes previously associated with Meriania silverstonei are reassigned to this new species.Conclusions: The Selvaflorensis complex is a natural group within Meriania, restricted to the northern Andes, currently composed of five species, and it is not closely related to the Brachycera group. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-2252 |
| 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-22522024-02-01T00:31:59Z Description of Meriania alexandrae (Melastomataceae, Merianieae), a new species of Colombia, and synopsis of the Selvaflorensis complex Descripción de Meriania alexandrae (Melastomataceae, Merianieae), una nueva especie de Colombia y sinopsis del complejo Selvaflorensis Posada-Herrera, Juan Mauricio Mendoza-Cifuentes, Humberto Cordillera Occidental especies endémicas Norte de los Andes taxonomía endemic species Northern Andes taxonomy Western Cordillera Background and Aims: Meriania is a Neotropical genus of trees and shrubs, comprising approximately 120 species distributed from southern Mexico to Brazil, Bolivia, and the Antilles. In Colombia, associated with the Western and Central Andes, there exists a species complex of Meriania with a set of unique characteristics that distinguishes it from other Andean groups, referred to as the Selvaflorensis complex. The aim of this article is to describe a new species of Meriania associated with this complex, as well as to document the species within this group and their distributions.Methods: Based on a recent collection, the examination of specimens in Colombian herbaria, images in JSTOR Global Plants, and literature on the genus in Colombia, a new species of Meriania is described and illustrated, and categorized according to the IUCN criteria. The Selvaflorensis complex is established within the genus, its relationships are discussed, distinctive traits are documented, a species synopsis is provided, and an identification key and table of primary characteristics for their recognition are presented. Key results: Meriania alexandrae sp. nov. is recognized by its shrubby habit, subpeltate leaves with glandular trichomes, flowers with apiculate and circumscissile calyptras, dimorphic stamens, and filiform seeds. It is endemic to Colombia, and it is suggested to be Endangered (EN). Together with four other species, it constitutes the new complex referred to as Selvaflorensis, characterized by the presence of glandular trichomes on leaves, calyptrate flowers, and filiform seeds. This complex is restricted to the biogeographical region known as the Western Cordillera of Colombia. Additionally, as a result of collection review, two paratypes previously associated with Meriania silverstonei are reassigned to this new species.Conclusions: The Selvaflorensis complex is a natural group within Meriania, restricted to the northern Andes, currently composed of five species, and it is not closely related to the Brachycera group. Antecedentes y Objetivos: Meriania es un género neotropical de árboles y arbustos, con aproximadamente 120 especies distribuidas desde el sur de México hasta Brasil, Bolivia y las Antillas. En Colombia, asociado a las cordilleras Occidental y Central, se encuentra un complejo de especies de Meriania con caracteres únicos que permite diferenciarlo de otros grupos andinos; aquí se denomina complejo Selvaflorensis. El objetivo de este artículo es describir una nueva especie de Meriania asociada a este, además de documentar las especies de este grupo y sus distribuciones.Métodos: Basados en una recolección reciente, la revisión de ejemplares depositados en herbarios de Colombia, imágenes de ejemplares en JSTOR Global Plants y la consulta de bibliografía del género en Colombia, se describe e ilustra una nueva especie de Meriania y se categoriza siguiendo los criterios de la IUCN. Se establece el complejo Selvaflorensis dentro del género, se discuten sus relaciones, se documentan sus rasgos distintivos, y se presentan una sinopsis de las especies, una clave de identificación y un cuadro de caracteres para su reconocimiento.Resultados clave: Meriania alexandrae sp. nov. se reconoce por el hábito arbustivo, hojas subpeltadas con tricomas glandulares, flores con caliptras apiculadas y circuncísiles, los estambres dimorfos y semillas filiformes. Es endémica de Colombia y se sugiere su categoría de amenaza En Peligro (EN). Junto con otras cuatro especies, constituye el nuevo complejo aquí llamado Selvaflorensis que se caracteriza por la presencia de tricomas glandulares en hojas, flores caliptradas y semillas filiformes. Este complejo es restricto a la región biogeográfica llamada Cordillera Occidental de Colombia. Adicionalmente, dos paratipos antes asociados a Meriania silverstonei se resignan a esta nueva especie.Conclusiones: El complejo Selvaflorensis es un grupo natural dentro de Meriania restricto al norte de los Andes, conformado hasta el momento por cinco especies, y no está cercanamente emparentado con el grupo Brachycera. Instituto de Ecología, A.C. 2023-12-04 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/2252 10.21829/abm130.2023.2252 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/2252/4472 https://abm.ojs.inecol.mx/index.php/abm/article/view/2252/4473 https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Posada-Herrera, Juan Mauricio Mendoza-Cifuentes, Humberto Description of Meriania alexandrae (Melastomataceae, Merianieae), a new species of Colombia, and synopsis of the Selvaflorensis complex |
| title | Description of Meriania alexandrae (Melastomataceae, Merianieae), a new species of Colombia, and synopsis of the Selvaflorensis complex |
| title_full | Description of Meriania alexandrae (Melastomataceae, Merianieae), a new species of Colombia, and synopsis of the Selvaflorensis complex |
| title_fullStr | Description of Meriania alexandrae (Melastomataceae, Merianieae), a new species of Colombia, and synopsis of the Selvaflorensis complex |
| title_full_unstemmed | Description of Meriania alexandrae (Melastomataceae, Merianieae), a new species of Colombia, and synopsis of the Selvaflorensis complex |
| title_short | Description of Meriania alexandrae (Melastomataceae, Merianieae), a new species of Colombia, and synopsis of the Selvaflorensis complex |
| title_sort | description of meriania alexandrae (melastomataceae, merianieae), a new species of colombia, and synopsis of the selvaflorensis complex |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/2252 |
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