La familia Gleicheniaceae (Polypodiopsida) en Argentina y Paraguay

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Fecha
09/2023
Editorial
Universidad de Concepción
Revista
Gayana. Botánica
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ISSN
0016-5301
eISSN
0717-6643
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Español
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Resumen
Se presenta un estudio de la familia Gleicheniaceae en Argentina y Paraguay, abarcando aspectos taxonómicos, morfológicos y de distribución. Se revisaron ocho herbarios de ambos países y especímenes tipo digitales. Se analizaron y describieron los caracteres morfológicos y la escultura de las esporas. Esta familia se caracteriza por sus frondes pseudodicotómicamente divididas, con yemas ubicadas en el ángulo interno de cada división. Se registran cuatro especies de los géneros Dicranopteris (D. flexuosa) y Sticherus (S. cryptocarpus, S. lanuginosus, S. quadripartitus). Se amplía la distribución de D. flexuosa en Argentina. Se brinda una clave para la determinación de las especies, descripciones morfológicas, breves descripciones de esporas, ilustraciones, mapas de distribución geográfica y comentarios ecológicos.
A study of the Gleicheniaceae family in Argentina and Paraguay is presented, covering taxonomic, morphological and distribution aspects. Eight herbaria from both countries and the digital type specimens were reviewed. The morphological characters and sculpture of the spores were analyzed and described. This family is characterized by its pseudodichotomically divided fronds, with buds located at the internal angle of each division. Four species of the genera Dicranopteris (D. flexuosa), and Sticherus (S. cryptocarpus, S. lanuginosus, S. quadripartitus) were recorded. The distribution of D. flexuosa is widened in Argentina. A key for the determination of species, morphological descriptions, brief descriptions of spores, illustrations, maps of geographical distribution and ecological comments are given.
A study of the Gleicheniaceae family in Argentina and Paraguay is presented, covering taxonomic, morphological and distribution aspects. Eight herbaria from both countries and the digital type specimens were reviewed. The morphological characters and sculpture of the spores were analyzed and described. This family is characterized by its pseudodichotomically divided fronds, with buds located at the internal angle of each division. Four species of the genera Dicranopteris (D. flexuosa), and Sticherus (S. cryptocarpus, S. lanuginosus, S. quadripartitus) were recorded. The distribution of D. flexuosa is widened in Argentina. A key for the determination of species, morphological descriptions, brief descriptions of spores, illustrations, maps of geographical distribution and ecological comments are given.
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