Leaf anatomy and its contribution to the systematics of Aechmea subgenus Macrochordion (de Vriese) Baker (Bromeliaceae)
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| Natura: | Artículo científico |
| Lingua: | en |
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Academia Brasileira de Ciências
2012
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| _version_ | 1876431111761952768 |
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| author | Ana Paula G. de Faria |
| author_facet | Ana Paula G. de Faria |
| contents | Leaf anatomy and its contribution to the systematics of Aechmea subgenus Macrochordion (de Vriese) Baker (Bromeliaceae) Ana Paula G. de Faria Ana Claudia M. Vieira Tânia Wendt Multidisciplinaria (Ciencias Naturales y Exactas) Aechmea Bromeliaceae leaf anatomy Macrochordion The leaf anatomy of the species Aechmea subgenus Macrochordion was analyzed to obtain valuable data on their taxonomic delimitation and to identify anatomical adaptations to their respective habitats and habits. All leaves of these species are hypostomatic, and present: peltate trichomes on both surfaces; stomata sunk in epidermal depressions; small epidermal cells with thick walls and inclusions of silica bodies; a mechanical hypodermis; an aquiferous parenchyma; chlorenchyma with fibrous clusters and air channels; and vascular bundles surrounded by a parenchymatic sheath and a cap of fibers. The results are evaluated within an adaptive and taxonomic context. Variations in hypodermic thickening, amount of water parenchyma, position of the air channels and shape of the cells filling the air channels are useful for delimiting groups of species, strengthening the relationships suggested by their external morphology. 2012 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32724544016 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.84 |
| format | Artículo científico |
| id | redalyc_32724544016 |
| institution | Redalyc |
| language | en |
| publishDate | 2012 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Leaf anatomy and its contribution to the systematics of Aechmea subgenus Macrochordion (de Vriese) Baker (Bromeliaceae) Ana Paula G. de Faria Multidisciplinaria (Ciencias Naturales y Exactas) Aechmea Bromeliaceae leaf anatomy Macrochordion Leaf anatomy and its contribution to the systematics of Aechmea subgenus Macrochordion (de Vriese) Baker (Bromeliaceae) Ana Paula G. de Faria Ana Claudia M. Vieira Tânia Wendt Multidisciplinaria (Ciencias Naturales y Exactas) Aechmea Bromeliaceae leaf anatomy Macrochordion The leaf anatomy of the species Aechmea subgenus Macrochordion was analyzed to obtain valuable data on their taxonomic delimitation and to identify anatomical adaptations to their respective habitats and habits. All leaves of these species are hypostomatic, and present: peltate trichomes on both surfaces; stomata sunk in epidermal depressions; small epidermal cells with thick walls and inclusions of silica bodies; a mechanical hypodermis; an aquiferous parenchyma; chlorenchyma with fibrous clusters and air channels; and vascular bundles surrounded by a parenchymatic sheath and a cap of fibers. The results are evaluated within an adaptive and taxonomic context. Variations in hypodermic thickening, amount of water parenchyma, position of the air channels and shape of the cells filling the air channels are useful for delimiting groups of species, strengthening the relationships suggested by their external morphology. 2012 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32724544016 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.84 |
| title | Leaf anatomy and its contribution to the systematics of Aechmea subgenus Macrochordion (de Vriese) Baker (Bromeliaceae) |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) Aechmea Bromeliaceae leaf anatomy Macrochordion |
| url | https://www.redalyc.org/articulo.oa?id=32724544016 |