Arbutus bicolor (Ericaceae, Arbuteae), a new species from Mexico
Arbutus bicolor S. González, M. González et P. D. Sørensen, sp. nov. is described and illustrated. It is related to A. xalapensis H.B.K. and has been generally misidentified as A. glandulosa M. Martens & Galeotti, a synonym of the latter name. The new species is distinguished by having dense...
| Main Authors: | , , |
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| Format: | Online |
| Language: | spa |
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Instituto de Ecología, A.C.
2012
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| Online Access: | https://abm.ojs.inecol.mx/index.php/abm/article/view/19 |
| _version_ | 1799771073639612416 |
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| author | González-Elizondo, M. Socorro González-Elizondo, Martha Sørensen, Paul D. |
| author_facet | González-Elizondo, M. Socorro González-Elizondo, Martha Sørensen, Paul D. |
| author_sort | González-Elizondo, M. Socorro |
| collection | ABM |
| description | Arbutus bicolor S. González, M. González et P. D. Sørensen, sp. nov. is described and illustrated. It is related to A. xalapensis H.B.K. and has been generally misidentified as A. glandulosa M. Martens & Galeotti, a synonym of the latter name. The new species is distinguished by having densely glandular pubescent branchlets and petioles; markedly bicolored leaves that are whitish to pale ochroleucous below due to a dense and uniform indument of tightly curled hairs, leaves red at senescence; and pink, rarely white flowers. Arbutus bicolor is widely distributed in the Sierra Madre Occidental and the Transvolcanic Belt and reaches the western slopes of the Sierra Madre Oriental in central Mexico. Sporadic hybridization occurs with A. madrensis S. González, A. occidentalis McVaugh & Rosatti, A. tessellata Sørensen, and A. xalapensis. A key to distinguish A. bicolor from other Mexican tree species of Arbutus is provided. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-19 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2012 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-192022-12-23T05:25:03Z Arbutus bicolor (Ericaceae, Arbuteae), a new species from Mexico Arbutus bicolor (Ericaceae, Arbuteae), una nueva especie de Mexico González-Elizondo, M. Socorro González-Elizondo, Martha Sørensen, Paul D. Arbutus glandulosa Arbutus xalapensis hybridization madrone systematics Arbutus glandulosa Arbutus xalapensis hibridación madroño sistemática Arbutus bicolor S. González, M. González et P. D. Sørensen, sp. nov. is described and illustrated. It is related to A. xalapensis H.B.K. and has been generally misidentified as A. glandulosa M. Martens & Galeotti, a synonym of the latter name. The new species is distinguished by having densely glandular pubescent branchlets and petioles; markedly bicolored leaves that are whitish to pale ochroleucous below due to a dense and uniform indument of tightly curled hairs, leaves red at senescence; and pink, rarely white flowers. Arbutus bicolor is widely distributed in the Sierra Madre Occidental and the Transvolcanic Belt and reaches the western slopes of the Sierra Madre Oriental in central Mexico. Sporadic hybridization occurs with A. madrensis S. González, A. occidentalis McVaugh & Rosatti, A. tessellata Sørensen, and A. xalapensis. A key to distinguish A. bicolor from other Mexican tree species of Arbutus is provided. Se describe e ilustra a Arbutus bicolor S. González, M. González et P. D. Sørensen, sp. nov., especie relacionada con A. xalapensis H.B.K., que ha sido por largo tiempo identificada erróneamente como A. glandulosa M. Martens & Galeotti, un sinónimo de esta última. Se diferencia de A. xalapensis por tener las ramillas y pecíolos densamente glandular pubescentes, las hojas marcadamente bicolores con envés blanquecino a ocre pálido debido a la presencia de indumento denso y uniforme de pelos apretadamente crespos, las hojas de color rojo intenso en la senescencia, así como las flores de color rosa o raramente blanco. Arbutus bicolor está ampliamente distribuida en la Sierra Madre Occidental y el Eje Neovolcánico, alcanzando la vertiente occidental de la Sierra Madre Oriental. Se registran híbridos esporádicos con A. madrensis S. González, A. occidentalis McVaugh & Rosatti, A. tessellata Sørensen y A. xalapensis. Se incluye una clave para distinguir a A. bicolor de otras especies arbóreas de Arbutus de México. Instituto de Ecología, A.C. 2012-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/html https://abm.ojs.inecol.mx/index.php/abm/article/view/19 10.21829/abm99.2012.19 Acta Botanica Mexicana; No. 99 (2012); 55-72 Acta Botanica Mexicana; Núm. 99 (2012); 55-72 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/19/22 https://abm.ojs.inecol.mx/index.php/abm/article/view/19/31 Derechos de autor 2015 Acta Botánica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | González-Elizondo, M. Socorro González-Elizondo, Martha Sørensen, Paul D. Arbutus bicolor (Ericaceae, Arbuteae), a new species from Mexico |
| title | Arbutus bicolor (Ericaceae, Arbuteae), a new species from Mexico |
| title_full | Arbutus bicolor (Ericaceae, Arbuteae), a new species from Mexico |
| title_fullStr | Arbutus bicolor (Ericaceae, Arbuteae), a new species from Mexico |
| title_full_unstemmed | Arbutus bicolor (Ericaceae, Arbuteae), a new species from Mexico |
| title_short | Arbutus bicolor (Ericaceae, Arbuteae), a new species from Mexico |
| title_sort | arbutus bicolor (ericaceae, arbuteae), a new species from mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/19 |
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