Artículo
Spore morphology of Schizaea species (Schizaeaceae) from America
Fecha de publicación:
07/2024
Editorial:
Elsevier Science
Revista:
Review of Palaeobotany and Palynology
ISSN:
0034-6667
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The Schizaeaceae family consists of only two genera, Actinostachys Wall and Schizaea Sm. These genera are mainly found in the tropical regions of the Old and New World with a few of them growing in temperate areas.The spores of the following Schizaea species from America were studied: Schizaea elegans (Vahl) Sw., S. fistulosa Labill., S. fluminensis Miers ex J.W. Sturm, S. incurvata Schkuhr, S. poeppigiana J.W. Sturm, S. pusilla Pursh, S. sprucei Hook. and S. stricta Lellinger. The study was performed with light microscope (LM) and scanning electron microscope (SEM). The spores are monolete of 33.6–99.4 μm in equatorial diameter and 21–65.8 μm inpolar diameter. The ornamentation of the spores is verrucate, verrucate-tuberculate, rugate or reticulate. The most abundant morphology is the verrucate ornamentation. The exospore and the perispore form the ornamentation of the spores. In most of the species analyzed abundant spheroids, variable in size were observed irregularly distributed on the spore surface, even on the laesura. This study describes and illustrates the spores of some species for the first time. The results are discussed with a recent phylogeny of the genus.
Palabras clave:
Schizaea
,
Schizaeaceae
,
Spores
,
Morphology
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Citación
Ramos Giacosa, Juan Pablo; Spore morphology of Schizaea species (Schizaeaceae) from America; Elsevier Science; Review of Palaeobotany and Palynology; 326; 7-2024; 1-8
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