Echeandia cholulensis (Asparagaceae), a new species from central Mexico
Background and Aims: The genus Echeandia (Asparagaceae) characterizes the Mexican geophyte flora. The group is exclusive of the Americas and includes 85 species. In Mexico, there are 74 species, of which 63 are endemic; however, the species richness is concentrated in the Mexican Transition Zone, in...
| Những tác giả chính: | , |
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| Định dạng: | Online |
| Ngôn ngữ: | eng spa |
| Được phát hành: |
Instituto de Ecología, A.C.
2021
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| Truy cập trực tuyến: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1915 |
| _version_ | 1799771403152523264 |
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| author | Rodríguez, Aarón Ortiz Brunel, Juan Pablo |
| author_facet | Rodríguez, Aarón Ortiz Brunel, Juan Pablo |
| author_sort | Rodríguez, Aarón |
| collection | ABM |
| description | Background and Aims: The genus Echeandia (Asparagaceae) characterizes the Mexican geophyte flora. The group is exclusive of the Americas and includes 85 species. In Mexico, there are 74 species, of which 63 are endemic; however, the species richness is concentrated in the Mexican Transition Zone, including the Transmexican Volcanic Belt (TMVB). Here, we name and describe a new species of Echeandia found along the TMVB in the states of Puebla and Tlaxcala.Methods: Field work and herbarium revision led us to discover a new species of Echeandia. The morphological description and illustration were based on eight voucher specimens plus living plants from two populations. Moreover, we compared the morphology of the new taxon with that of E. michoacensis and E. robusta. Lastly, we assessed its conservation status by calculating its extent of occurrence (EOO) and its area of occupancy (AOO), using the GeoCAT tool and based on the IUCN Red List categories and criteria.Key results: Echeandia cholulensis is a new species from Mexico. The new taxon includes robust plants characterized by root-thickenings distant from the corm; lanceolate, undulate, and glaucous leaves; ascending flowers with white tepals; clavate and muricate filaments, and free anthers with longitudinal dehiscence. Until now, it is known from three populations in central Mexico in the states of Puebla and Tlaxcala.Conclusions: Along the TMVB, volcanism has created topographic and climatic variation favoring speciation and persistence. The discovery and morphological description of Echeandia cholulensis exemplifies this observation. Furthermore, botanical exploration and herbaria revisions might discover new species that would increase the great plant diversity of the TMVB. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1915 |
| institution | Acta Botanica Mexicana |
| language | eng spa |
| publishDate | 2021 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-19152022-11-17T00:44:51Z Echeandia cholulensis (Asparagaceae), a new species from central Mexico Echeandia cholulensis (Asparagaceae), una especie nueva del centro de México Rodríguez, Aarón Ortiz Brunel, Juan Pablo Mexican Transition Zone Puebla Tlaxcala Transmexican Volcanic Belt Eje Volcánico Transmexicano Puebla Tlaxcala Zona de Transición Mexicana Background and Aims: The genus Echeandia (Asparagaceae) characterizes the Mexican geophyte flora. The group is exclusive of the Americas and includes 85 species. In Mexico, there are 74 species, of which 63 are endemic; however, the species richness is concentrated in the Mexican Transition Zone, including the Transmexican Volcanic Belt (TMVB). Here, we name and describe a new species of Echeandia found along the TMVB in the states of Puebla and Tlaxcala.Methods: Field work and herbarium revision led us to discover a new species of Echeandia. The morphological description and illustration were based on eight voucher specimens plus living plants from two populations. Moreover, we compared the morphology of the new taxon with that of E. michoacensis and E. robusta. Lastly, we assessed its conservation status by calculating its extent of occurrence (EOO) and its area of occupancy (AOO), using the GeoCAT tool and based on the IUCN Red List categories and criteria.Key results: Echeandia cholulensis is a new species from Mexico. The new taxon includes robust plants characterized by root-thickenings distant from the corm; lanceolate, undulate, and glaucous leaves; ascending flowers with white tepals; clavate and muricate filaments, and free anthers with longitudinal dehiscence. Until now, it is known from three populations in central Mexico in the states of Puebla and Tlaxcala.Conclusions: Along the TMVB, volcanism has created topographic and climatic variation favoring speciation and persistence. The discovery and morphological description of Echeandia cholulensis exemplifies this observation. Furthermore, botanical exploration and herbaria revisions might discover new species that would increase the great plant diversity of the TMVB. Antecedentes y Objetivos: El género Echeandia (Asparagaceae) agrupa geófitas que caracterizan la flora de México. El grupo es endémico de América e incluye 85 especies, 74 de las cuales han sido encontradas en México y 63 son endémicas de este país. Su riqueza se concentra en la Zona de Transición Mexicana, incluido el Eje Volcánico Transmexicano (EVT). En este trabajo, se nombra y se describe a una especie nueva de Echeandia recolectada en el EVT en los estados de Puebla y Tlaxcala.Métodos: Recolectas en campo y revisión de ejemplares de herbario permitieron el descubrimiento de una especie nueva de Echeandia. Analizamos la morfología de ocho ejemplares de herbario y plantas vivas de dos poblaciones para describir el nuevo taxón y diferenciarlo de E. michoacensis y E. robusta. Por último, evaluamos su estado de conservación mediante el cálculo de la extensión de ocurrencia (EOO) y el área de ocupación (AOO) con la herramienta GeoCAT y basándonos en las categorías y criterios de la Lista Roja de la IUCN.Resultados clave: Describimos Echeandia cholulensis como una especie nueva de México. Se caracteriza por desarrollar los engrosamientos de las raíces alejados del cormo. Las hojas son lanceoladas, onduladas y glaucas. Produce flores ascendentes con tépalos blancos, filamentos clavados y muricados y anteras libres con dehiscencia longitudinal. Se conoce de tres poblaciones en el centro de México, en los estados de Puebla y Tlaxcala.Conclusiones: En el EVT, el volcanismo ha generado variación topográfica y climática que favorece la especiación y persistencia de las plantas. El descubrimiento y descripción morfológica de Echeandia cholulensis ejemplifican lo anterior. La exploración botánica y la revisión de los ejemplares de herbario podrían resultar en el descubrimiento de especies nuevas que aumenten la riqueza florística del EVT. Instituto de Ecología, A.C. 2021-11-03 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/xml application/epub+zip https://abm.ojs.inecol.mx/index.php/abm/article/view/1915 10.21829/abm128.2021.1915 Acta Botanica Mexicana; No. 128 (2021) Acta Botanica Mexicana; Núm. 128 (2021) 2448-7589 0187-7151 eng spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1915/3906 https://abm.ojs.inecol.mx/index.php/abm/article/view/1915/3944 https://abm.ojs.inecol.mx/index.php/abm/article/view/1915/3907 https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Rodríguez, Aarón Ortiz Brunel, Juan Pablo Echeandia cholulensis (Asparagaceae), a new species from central Mexico |
| title | Echeandia cholulensis (Asparagaceae), a new species from central Mexico |
| title_full | Echeandia cholulensis (Asparagaceae), a new species from central Mexico |
| title_fullStr | Echeandia cholulensis (Asparagaceae), a new species from central Mexico |
| title_full_unstemmed | Echeandia cholulensis (Asparagaceae), a new species from central Mexico |
| title_short | Echeandia cholulensis (Asparagaceae), a new species from central Mexico |
| title_sort | echeandia cholulensis (asparagaceae), a new species from central mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1915 |
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