Graptopetalum sinaloensis (Crassulaceae), a new species from Sinaloa, Mexico
Background and Aims: The genus Graptopetalum includes about 20 species of branched or acaulescent rosette herbs that develop in little accessible semiarid environments (mountains or ravines) of Mexico and Arizona. The authors have developed continuous work to document the flora of Sinaloa and the pr...
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| Formaat: | Online |
| Taal: | spa |
| Gepubliceerd in: |
Instituto de Ecología, A.C.
2020
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| Online toegang: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1550 |
| _version_ | 1799771363467067392 |
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| author | Vega Aviña, Rito Delgado Vargas, Francisco Pío León, Juan Fernando |
| author_facet | Vega Aviña, Rito Delgado Vargas, Francisco Pío León, Juan Fernando |
| author_sort | Vega Aviña, Rito |
| collection | ABM |
| description | Background and Aims: The genus Graptopetalum includes about 20 species of branched or acaulescent rosette herbs that develop in little accessible semiarid environments (mountains or ravines) of Mexico and Arizona. The authors have developed continuous work to document the flora of Sinaloa and the present article reports a taxonomic novelty in the genus Graptopetalum.
Methods: In the municipality of Culiacán, Sinaloa, Mexico, a small population of plants of the genus Graptopetalum with dry inflorescences was found in June 2013, and some plants were collected and cultivated, they flowered in March. Plants with flowers were collected from the same location in February 2014. Morphological data of wild and cultivated material were compared with that of herbarium specimens, literature, and cultivated Graptopetalum species; and it was determined that collected material is a new species for science.
Key results: The new taxon Graptopetalum sinaloensis, section Graptopetalum, is described. Its differences and similarities with the closest species are discussed. Moreover, a new and updated dichotomous key is provided for the eight species of this section.
Conclusions: Graptopetalum sinaloensis is endemic to south-central Sinaloa, Mexico. It grows in very localized areas, on rocky walls of streams and at the foot of hills, forming small populations in reduced areas of 5 to 10 m2. Graptopetalum sinaloensis differs from other Graptopetalum species from Sinaloa by its 5-merous flowers vs. G. rusbyi with 6-7-merous ones, and by its paniculate inflorescence vs. G. occidentale with cymose ones. Additionally, the geographical distribution of the three species does not overlap. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1550 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2020 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-15502022-11-17T21:46:56Z Graptopetalum sinaloensis (Crassulaceae), a new species from Sinaloa, Mexico Graptopetalum sinaloensis (Crassulaceae), una nueva especie de Sinaloa, México Vega Aviña, Rito Delgado Vargas, Francisco Pío León, Juan Fernando Byrnesia flora de Sinaloa Graptopetalum rusbyi Graptopetalum occidentale Sedum selva baja caducifolia. Byrnesia flora of Sinaloa Graptopetalum rusbyi Graptopetalum occidentale Sedum tropical deciduous forest. Background and Aims: The genus Graptopetalum includes about 20 species of branched or acaulescent rosette herbs that develop in little accessible semiarid environments (mountains or ravines) of Mexico and Arizona. The authors have developed continuous work to document the flora of Sinaloa and the present article reports a taxonomic novelty in the genus Graptopetalum. Methods: In the municipality of Culiacán, Sinaloa, Mexico, a small population of plants of the genus Graptopetalum with dry inflorescences was found in June 2013, and some plants were collected and cultivated, they flowered in March. Plants with flowers were collected from the same location in February 2014. Morphological data of wild and cultivated material were compared with that of herbarium specimens, literature, and cultivated Graptopetalum species; and it was determined that collected material is a new species for science. Key results: The new taxon Graptopetalum sinaloensis, section Graptopetalum, is described. Its differences and similarities with the closest species are discussed. Moreover, a new and updated dichotomous key is provided for the eight species of this section. Conclusions: Graptopetalum sinaloensis is endemic to south-central Sinaloa, Mexico. It grows in very localized areas, on rocky walls of streams and at the foot of hills, forming small populations in reduced areas of 5 to 10 m2. Graptopetalum sinaloensis differs from other Graptopetalum species from Sinaloa by its 5-merous flowers vs. G. rusbyi with 6-7-merous ones, and by its paniculate inflorescence vs. G. occidentale with cymose ones. Additionally, the geographical distribution of the three species does not overlap. Antecedentes y Objetivos: El género Graptopetalum (Crassulaceae) incluye cerca de 20 especies de herbáceas rosetoides, con tallos ramificados o acaules, que se desarrollan en ambientes semiáridos y poco accesibles (montañas o barrancas) de México y Arizona. Como parte del trabajo continuo de los autores para documentar la flora de Sinaloa, en el presente artículo, se reporta una novedad taxonómica del género Graptopetalum. Métodos: En junio de 2013, en el municipio Culiacán, Sinaloa, México, se encontró una pequeña población de plantas del género Graptopetalum con inflorescencias secas, de la cual se colectaron algunos individuos para cultivar; florecieron en marzo. Especímenes con flor se colectaron en campo en la misma localidad en febrero de 2014. Al comparar el material de campo y el cultivado con material de herbario, literatura y cultivo de otras especies del género, se determinó que se trataba de una especie nueva para la ciencia. Resultados clave: Se describe el nuevo taxón Graptopetalum sinaloensis de la sección Graptopetalum, se discuten diferencias y similitudes con las especies más cercanas y se proporciona una clave dicotómica nueva y actualizada para las ocho especies de esta sección. Conclusiones: Graptopetalum sinaloensis es endémica del centro-sur de Sinaloa, México. Crece sobre paredes rocosas de arroyos y pie de cerros muy localizados, en poblaciones pequeñas y áreas reducidas de entre 5 y 10 m2. Se diferencia fácilmente de las otras especies de la sección Graptopetalum de Sinaloa por su flor pentámera, ya que G. rusbyi presenta 6-7, y por su inflorescencia en panícula porque G. occidentale presenta una cima. Además, la distribución geográfica no se traslapa con ninguna de ellas. Instituto de Ecología, A.C. 2020-01-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf application/epub+zip application/xml https://abm.ojs.inecol.mx/index.php/abm/article/view/1550 10.21829/abm127.2020.1550 Acta Botanica Mexicana; No. 127 (2020) Acta Botanica Mexicana; Núm. 127 (2020) 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1550/3958 https://abm.ojs.inecol.mx/index.php/abm/article/view/1550/3959 https://abm.ojs.inecol.mx/index.php/abm/article/view/1550/1956 Derechos de autor 2019 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Vega Aviña, Rito Delgado Vargas, Francisco Pío León, Juan Fernando Graptopetalum sinaloensis (Crassulaceae), a new species from Sinaloa, Mexico |
| title | Graptopetalum sinaloensis (Crassulaceae), a new species from Sinaloa, Mexico |
| title_full | Graptopetalum sinaloensis (Crassulaceae), a new species from Sinaloa, Mexico |
| title_fullStr | Graptopetalum sinaloensis (Crassulaceae), a new species from Sinaloa, Mexico |
| title_full_unstemmed | Graptopetalum sinaloensis (Crassulaceae), a new species from Sinaloa, Mexico |
| title_short | Graptopetalum sinaloensis (Crassulaceae), a new species from Sinaloa, Mexico |
| title_sort | graptopetalum sinaloensis (crassulaceae), a new species from sinaloa, mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1550 |
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