Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): two new species from Mexico
Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae), two new species from the Mexican states of Oaxaca and Hidalgo, respectively, are described and illustrated. Dahlia campanulata is distinguished by its exceptionally large, pendulous, and campanulate flower heads; leaf petioles with enla...
| Hlavní autoři: | , , |
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| Médium: | Online |
| Jazyk: | spa |
| Vydáno: |
Instituto de Ecología, A.C.
2003
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| On-line přístup: | https://abm.ojs.inecol.mx/index.php/abm/article/view/924 |
| _version_ | 1799771248197107712 |
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| author | Saar, Dayle E. Sørensen, Paul D. Hjerting, J. P. |
| author_facet | Saar, Dayle E. Sørensen, Paul D. Hjerting, J. P. |
| author_sort | Saar, Dayle E. |
| collection | ABM |
| description | Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae), two new species from the Mexican states of Oaxaca and Hidalgo, respectively, are described and illustrated. Dahlia campanulata is distinguished by its exceptionally large, pendulous, and campanulate flower heads; leaf petioles with enlarged clasping bases that are much thicker than in any other species of Dahlia; and enormous tubers that exceed 0.5 m in length. Dahlia cuspidata is distinguished by its large outer involucral bracts and cuspidate leaflets, particularly at the terminal end of the rachis and those at the ends of the lateral rachillae; the terminal leaflet on mature leaves is often much more rounded (versus elliptic) than the lateral leaflets. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-924 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2003 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-9242022-12-24T05:01:24Z Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): two new species from Mexico Dahlia campanulata y D. cuspidata (Asteraceae, Coreopsideae): dos especies nuevas de México Saar, Dayle E. Sørensen, Paul D. Hjerting, J. P. Asteraceae Coreopsideae Dahlia Heliantheae sensu lato Hidalgo Mexico Oaxaca Asteraceae Coreopsideae Dahlia Heliantheae sensu lato Hidalgo México Oaxaca Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae), two new species from the Mexican states of Oaxaca and Hidalgo, respectively, are described and illustrated. Dahlia campanulata is distinguished by its exceptionally large, pendulous, and campanulate flower heads; leaf petioles with enlarged clasping bases that are much thicker than in any other species of Dahlia; and enormous tubers that exceed 0.5 m in length. Dahlia cuspidata is distinguished by its large outer involucral bracts and cuspidate leaflets, particularly at the terminal end of the rachis and those at the ends of the lateral rachillae; the terminal leaflet on mature leaves is often much more rounded (versus elliptic) than the lateral leaflets. Se describen e ilustran Dahlia campanulata y D. cuspidata (Asteraceae, Coreopsideae), dos nuevas especies de los estados mexicanos de Oaxaca e Hidalgo respectivamente. Dahlia campanulata se distingue porque las cabezuelas de las flores son excepcionalmente grandes, campanuladas y péndulas, las bases de los pecíolos son alargadas y amplexicaules, mucho más gruesas que en cualquier otra especie; los tubérculos son enormes y exceden 0.5 m de largo. Dahlia cuspidata se distingue por sus brácteas involucrales externas grandes y sus folíolos cuspidados, especialmente el que remata el raquis y los que rematan las raquillas laterales; el folíolo terminal de las hojas maduras es frecuentemente mucho más redondo (en vez de elíptico) que los folíolos laterales. Instituto de Ecología, A.C. 2003-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf https://abm.ojs.inecol.mx/index.php/abm/article/view/924 10.21829/abm64.2003.924 Acta Botanica Mexicana; No. 64 (2003); 19-24 Acta Botanica Mexicana; Núm. 64 (2003); 19-24 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/924/1090 Derechos de autor 2016 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Saar, Dayle E. Sørensen, Paul D. Hjerting, J. P. Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): two new species from Mexico |
| title | Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): two new species from Mexico |
| title_full | Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): two new species from Mexico |
| title_fullStr | Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): two new species from Mexico |
| title_full_unstemmed | Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): two new species from Mexico |
| title_short | Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): two new species from Mexico |
| title_sort | dahlia campanulata and d. cuspidata (asteraceae, coreopsideae): two new species from mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/924 |
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