"Comparative morpho-anatomical study in petioles of Asplenium (Aspleniaceae) species from Argentina"

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Background and aims: The morphology and the anatomy of the petioles provide useful information for taxonomic issues in ferns. The aim of this study was to analyze the diagnostic characters of petioles in 37 species of Asplenium that grow in Argentina, to contribute to their identification and to asc...

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Autores principales: Ganem, María A., Luna, María L., Ahumada, Osvaldo, Giudice, Gabriela E.
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2019
Materias:
Asplenium
circumendodermal band
petiole
taxonomy
vascular bundles.
banda circumendodermal
haces vasculares
pecíolo
taxonomía.
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/24364
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10article-24364
record_format ojs
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
language Español
format Artículo revista
topic Asplenium
circumendodermal band
petiole
taxonomy
vascular bundles.
Asplenium
banda circumendodermal
haces vasculares
pecíolo
taxonomía.
spellingShingle Asplenium
circumendodermal band
petiole
taxonomy
vascular bundles.
Asplenium
banda circumendodermal
haces vasculares
pecíolo
taxonomía.
Ganem, María A.
Luna, María L.
Ahumada, Osvaldo
Giudice, Gabriela E.
"Comparative morpho-anatomical study in petioles of Asplenium (Aspleniaceae) species from Argentina"
topic_facet Asplenium
circumendodermal band
petiole
taxonomy
vascular bundles.
Asplenium
banda circumendodermal
haces vasculares
pecíolo
taxonomía.
author Ganem, María A.
Luna, María L.
Ahumada, Osvaldo
Giudice, Gabriela E.
author_facet Ganem, María A.
Luna, María L.
Ahumada, Osvaldo
Giudice, Gabriela E.
author_sort Ganem, María A.
title "Comparative morpho-anatomical study in petioles of Asplenium (Aspleniaceae) species from Argentina"
title_short "Comparative morpho-anatomical study in petioles of Asplenium (Aspleniaceae) species from Argentina"
title_full "Comparative morpho-anatomical study in petioles of Asplenium (Aspleniaceae) species from Argentina"
title_fullStr "Comparative morpho-anatomical study in petioles of Asplenium (Aspleniaceae) species from Argentina"
title_full_unstemmed "Comparative morpho-anatomical study in petioles of Asplenium (Aspleniaceae) species from Argentina"
title_sort "comparative morpho-anatomical study in petioles of asplenium (aspleniaceae) species from argentina"
description Background and aims: The morphology and the anatomy of the petioles provide useful information for taxonomic issues in ferns. The aim of this study was to analyze the diagnostic characters of petioles in 37 species of Asplenium that grow in Argentina, to contribute to their identification and to ascertain on their adaptive significance. M&M: Herbarium specimens and fresh material were employed. Materials were analyzed under stereoscopic and light microscopes; in the latter case, the samples were processed following the conventional histological techniques. The characters analyzed were: colour, length, presence of wings, sub-epidermic mechanical tissue, aeration lines, circumendodermal band (CB), shape and number of vascular bundles and xylem contour. Results: Some characteristics of the petioles allow the grouping of species. The diagnostic features are: colour, presence/absence of wings, number of vascular bundles, bundles contour, xylem contour and presence/absence of CB.  Conclusions: Petiole characters alone do not allow the identification of the taxa at specific level, although along with others they contribute to the systematics of the genus. The anatomy of the petiole does not show in general terms relationship with the habit of these plants. The type and distribution of subepidermic mechanical tissue and the presence of CB are associated with species that inhabit exposed and dry environments, but these features are not exclusive of the taxa that grow under these conditions.
publisher Sociedad Argentina de Botánica
publishDate 2019
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/24364
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