Jarava disticha (Poaceae, Pooideae, Stipeae), a new nomenclatural combination and taxonomic delimitation with Jarava pachypus
Background and Aims: The genus Jarava consists of 30-32 species distributed from Mexico to South America. Stipa and Jarava were not well delimited for many years, even Stipa disticha was considered as a synonym of J. pachypus in taxonomic treatments and catalogs. The objective of this study is to de...
| Autores principales: | , , |
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| Formato: | Online |
| Lenguaje: | spa |
| Publicado: |
Instituto de Ecología, A.C.
2024
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| Acceso en línea: | https://abm.ojs.inecol.mx/index.php/abm/article/view/2292 |
| _version_ | 1799771442496143360 |
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| author | Muñuico, Jhon W. Dillon, Michael O. Quipuscoa Silvestre, Victor |
| author_facet | Muñuico, Jhon W. Dillon, Michael O. Quipuscoa Silvestre, Victor |
| author_sort | Muñuico, Jhon W. |
| collection | ABM |
| description | Background and Aims: The genus Jarava consists of 30-32 species distributed from Mexico to South America. Stipa and Jarava were not well delimited for many years, even Stipa disticha was considered as a synonym of J. pachypus in taxonomic treatments and catalogs. The objective of this study is to delimit the morphological characters, make the new taxonomic combination and mention the distribution for both species.Methods: Field collected material was gathered in 2020-2021. In addition, herbarium collections (CUZ, HSP, HUSA and USM) have been examined. To diagnose the species, taxonomic revisions, protologues and analysis of digitized types were utilized. For each species, morphological descriptions, images and a distribution map were made. Diagnostic characters of the Jarava species present in Peru were used to elaborate a dichotomous key.Key results: Javara disticha is presented as a new combination. The form of branching of the culms, width of the lower glumes, and size and indumentum of the anthoecia are the main taxonomic characters that allow the delimitation between J. disticha and J. pachypus. The two species are distributed in the lomas formations of southern Peru.Conclusions: With the new combination, six species of Jarava are present in Peru. Jarava disticha is distributed in the departments of Ica and Arequipa, while J. pachypus is endemic to southern Arequipa. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-2292 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2024 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-22922024-05-06T15:52:05Z Jarava disticha (Poaceae, Pooideae, Stipeae), a new nomenclatural combination and taxonomic delimitation with Jarava pachypus Jarava disticha (Poaceae, Pooideae, Stipeae), una nueva combinación nomenclatural y delimitación taxonómica con Jarava pachypus Muñuico, Jhon W. Dillon, Michael O. Quipuscoa Silvestre, Victor Arequipa desierto peruano formaciones de lomas gramíneas Ica oasis de niebla Arequipa fog oasis grasses Ica lomas formations Peruvian desert Background and Aims: The genus Jarava consists of 30-32 species distributed from Mexico to South America. Stipa and Jarava were not well delimited for many years, even Stipa disticha was considered as a synonym of J. pachypus in taxonomic treatments and catalogs. The objective of this study is to delimit the morphological characters, make the new taxonomic combination and mention the distribution for both species.Methods: Field collected material was gathered in 2020-2021. In addition, herbarium collections (CUZ, HSP, HUSA and USM) have been examined. To diagnose the species, taxonomic revisions, protologues and analysis of digitized types were utilized. For each species, morphological descriptions, images and a distribution map were made. Diagnostic characters of the Jarava species present in Peru were used to elaborate a dichotomous key.Key results: Javara disticha is presented as a new combination. The form of branching of the culms, width of the lower glumes, and size and indumentum of the anthoecia are the main taxonomic characters that allow the delimitation between J. disticha and J. pachypus. The two species are distributed in the lomas formations of southern Peru.Conclusions: With the new combination, six species of Jarava are present in Peru. Jarava disticha is distributed in the departments of Ica and Arequipa, while J. pachypus is endemic to southern Arequipa. Antecedentes y Objetivos: El género Jarava está conformado por 30-32 especies que se distribuyen desde México hasta Sudamérica. Stipa y Jarava por muchos años no estuvieron bien delimitados; incluso Stipa disticha fue considerado como sinónimo de J. pachypus en tratamientos taxonómicos y catálogos. El objetivo de este estudio es delimitar los caracteres morfológicos, realizar la nueva combinación taxonómica y mencionar la distribución para ambas especies.Métodos: El material recolectado en campo se recopiló en 2020-2021. Además, se examinaron colecciones de herbarios (CUZ, HSP, HUSA y USM). Para la diagnosis de las especies se utilizaron revisiones taxonómicas, protólogos y análisis de los tipos digitalizados. Para cada especie se realizaron descripciones morfológicas, imágenes y un mapa de distribución. Se elaboró una clave dicotómica con los caracteres diagnósticos de las especies de Jarava presentes en Perú.Resultados clave: Se presenta Jarava disticha como una nueva combinación. La forma de ramificación de los culmos, ancho de las glumas inferiores y el tamaño e indumento de los antecios son los principales caracteres taxonómicos que permiten delimitar entre J. disticha y J. pachypus. Ambas especies presentan una distribución en las formaciones de lomas del sur de Perú.Conclusiones: Con la nueva combinación realizada, en Perú se encuentran seis especies de Jarava. Jarava disticha se distribuye en los departamentos de Ica y Arequipa, y J. pachypus se considera endémica del sur de Arequipa. Instituto de Ecología, A.C. 2024-04-08 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/2292 10.21829/abm131.2024.2292 Acta Botanica Mexicana; No. 131 (2024) Acta Botanica Mexicana; Núm. 131 (2024) 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/2292/4525 https://abm.ojs.inecol.mx/index.php/abm/article/view/2292/4526 https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Muñuico, Jhon W. Dillon, Michael O. Quipuscoa Silvestre, Victor Jarava disticha (Poaceae, Pooideae, Stipeae), a new nomenclatural combination and taxonomic delimitation with Jarava pachypus |
| title | Jarava disticha (Poaceae, Pooideae, Stipeae), a new nomenclatural combination and taxonomic delimitation with Jarava pachypus |
| title_full | Jarava disticha (Poaceae, Pooideae, Stipeae), a new nomenclatural combination and taxonomic delimitation with Jarava pachypus |
| title_fullStr | Jarava disticha (Poaceae, Pooideae, Stipeae), a new nomenclatural combination and taxonomic delimitation with Jarava pachypus |
| title_full_unstemmed | Jarava disticha (Poaceae, Pooideae, Stipeae), a new nomenclatural combination and taxonomic delimitation with Jarava pachypus |
| title_short | Jarava disticha (Poaceae, Pooideae, Stipeae), a new nomenclatural combination and taxonomic delimitation with Jarava pachypus |
| title_sort | jarava disticha (poaceae, pooideae, stipeae), a new nomenclatural combination and taxonomic delimitation with jarava pachypus |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/2292 |
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