Six new species of Milla (Asparagaceae: Brodiaeoideae) from Mexico
Background and Aims: Milla, with ten species, is the most diverse genus of a monophyletic group of geophytic herbs named Milla clade (Brodiaeoideae: Asparagaceae). Milla is differentiated from related genera by its white aromatic hypocrateriform flowers, and the flower tube and gynophore longer than...
| Main Authors: | , |
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| Format: | Online |
| Sprog: | spa |
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Instituto de Ecología, A.C.
2023
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| Online adgang: | https://abm.ojs.inecol.mx/index.php/abm/article/view/2236 |
| _version_ | 1799771437175668736 |
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| author | Gutiérrez Gallegos, Jorge Alberto Terrazas Salgado, Teresa |
| author_facet | Gutiérrez Gallegos, Jorge Alberto Terrazas Salgado, Teresa |
| author_sort | Gutiérrez Gallegos, Jorge Alberto |
| collection | ABM |
| description | Background and Aims: Milla, with ten species, is the most diverse genus of a monophyletic group of geophytic herbs named Milla clade (Brodiaeoideae: Asparagaceae). Milla is differentiated from related genera by its white aromatic hypocrateriform flowers, and the flower tube and gynophore longer than the tepals. Milla biflora has traditionally been understood as a species of wide geographic distribution. However, recent studies have shown that various populations are different entities based on anatomy, morphology and genetics, and should be recognized as new species. The aim of this study is to describe and illustrate six new species of Milla, whose populations were considered part of Milla biflora.
Methods: Botanical specimens were collected in the distribution area of Milla throughout the Mexican Republic, between 2012 and 2015. Individuals from the visited populations were subjected to morphological, anatomical and phylogenetic analyses. In addition, specimens from fifteen herbaria were revised, which allowed evaluating vegetative and reproductive characters.
Key results: Six species of Milla are described and illustrated, differentiated morphologically from M. biflora by the number of leaves, transverse-sectional shape of the leaf, size of the scape, number of flowers, color, and size of the tepals as well as the number of tepal veins.
Conclusions: Milla is a natural group of geophytic herbs that have diversified throughout the Mexican Republic. The new species described here reveal that Milla has received little attention in its biological diversity. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-2236 |
| 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-22362024-02-01T00:31:59Z Six new species of Milla (Asparagaceae: Brodiaeoideae) from Mexico Seis nuevas especies de Milla (Asparagaceae: Brodiaeoideae) de México Gutiérrez Gallegos, Jorge Alberto Terrazas Salgado, Teresa diversificación endemismo geófita Milla biflora simpatría. diversification endemism geophyte Milla biflora sympatry. Background and Aims: Milla, with ten species, is the most diverse genus of a monophyletic group of geophytic herbs named Milla clade (Brodiaeoideae: Asparagaceae). Milla is differentiated from related genera by its white aromatic hypocrateriform flowers, and the flower tube and gynophore longer than the tepals. Milla biflora has traditionally been understood as a species of wide geographic distribution. However, recent studies have shown that various populations are different entities based on anatomy, morphology and genetics, and should be recognized as new species. The aim of this study is to describe and illustrate six new species of Milla, whose populations were considered part of Milla biflora. Methods: Botanical specimens were collected in the distribution area of Milla throughout the Mexican Republic, between 2012 and 2015. Individuals from the visited populations were subjected to morphological, anatomical and phylogenetic analyses. In addition, specimens from fifteen herbaria were revised, which allowed evaluating vegetative and reproductive characters. Key results: Six species of Milla are described and illustrated, differentiated morphologically from M. biflora by the number of leaves, transverse-sectional shape of the leaf, size of the scape, number of flowers, color, and size of the tepals as well as the number of tepal veins. Conclusions: Milla is a natural group of geophytic herbs that have diversified throughout the Mexican Republic. The new species described here reveal that Milla has received little attention in its biological diversity. Antecedentes y Objetivos: Milla, con diez especies, es el género más diverso de un grupo monofilético de hierbas geófitas nombrado clado Milla (Brodiaeoideae: Asparagaceae). Milla se diferencia de los géneros emparentados por sus flores hipocrateriformes, blancas, aromáticas y el tubo floral y ginóforo más largo que los tépalos. Milla biflora se entendía tradicionalmente como una especie de amplia distribución geográfica. Sin embargo, estudios recientes han demostrado que diversas poblaciones son entidades diferentes anatómica, morfológica y genéticamente, y deben ser reconocidas como especies nuevas. El objetivo de este estudio es describir e ilustrar seis especies nuevas de Milla, cuyas poblaciones eran consideradas parte de Milla biflora. Métodos: Se recolectaron especímenes botánicos en el área de distribución de Milla en la República Mexicana, entre 2012 y 2015. Individuos de las poblaciones visitadas fueron sometidos a diversos análisis morfológicos, anatómicos y filogenéticos. Además, se revisaron ejemplares de quince herbarios, lo que permitió evaluar caracteres vegetativos y reproductivos. Resultados clave: Se describen e ilustran seis nuevas especies de Milla, que se diferencian morfológicamente de M. biflora por el número de hojas, forma en sección transversal de la lámina foliar, tamaño del escapo, número de flores, color y tamaño de los tépalos, así como del número de nervaduras de los tépalos. Conclusiones: Milla es un grupo natural de hierbas geófitas que se ha diversificado a lo largo de la República Mexicana. Las especies nuevas aquí descritas revelan que Milla ha sido poco atendido en su diversidad biológica. Instituto de Ecología, A.C. 2023-09-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/epub+zip application/pdf https://abm.ojs.inecol.mx/index.php/abm/article/view/2236 10.21829/abm130.2023.2236 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/2236/4452 https://abm.ojs.inecol.mx/index.php/abm/article/view/2236/4453 https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Gutiérrez Gallegos, Jorge Alberto Terrazas Salgado, Teresa Six new species of Milla (Asparagaceae: Brodiaeoideae) from Mexico |
| title | Six new species of Milla (Asparagaceae: Brodiaeoideae) from Mexico |
| title_full | Six new species of Milla (Asparagaceae: Brodiaeoideae) from Mexico |
| title_fullStr | Six new species of Milla (Asparagaceae: Brodiaeoideae) from Mexico |
| title_full_unstemmed | Six new species of Milla (Asparagaceae: Brodiaeoideae) from Mexico |
| title_short | Six new species of Milla (Asparagaceae: Brodiaeoideae) from Mexico |
| title_sort | six new species of milla (asparagaceae: brodiaeoideae) from mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/2236 |
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