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| YAÑEZ,AGUSTINA; GUTIERREZ,DIEGO G.; PONCE,MARTA MÓNICA. |
| Abstract Currently, in Argentina 368 species of true ferns (i.e. Polypodiopsida class) are distributed throughout the country, however, only four of them have been mentioned until now as weeds and ruderal species. The goal of this work was to generate an update of weedy ferns from Argentina, including morphology, distribution, and type of weed according to their impact on natural habitats and/or human activities. All Argentinian fern species were analyzed based on references, herbarium specimens, and field trips. As a result of our study 25 species were recorded from Argentina and classified as segetal, ecological, or aquatic weeds, and ruderal and/or toxic species. Current taxonomic identity, diagnostic characters, origins, habitats, geographical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthropized areas; Aquatic weed; Ecological weed; Ruderal weed; Segetal weed; Toxic plant. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100721 |
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| YAÑEZ,AGUSTINA; MARQUEZ,GONZALO J.; MORBELLI,MARTA A.. |
| ABSTRACT The genera of Dennstaedtiaceae have sporophytes with very different morphological characteristics between each other, and this feature has made difficult the systematic circumscription of the family. This reason makes necessary the study of new characters that allow a better understanding of the relations within the group. The spore morphology and wall structure of Blotiella lindeniana, Histiopteris incisa and Paesia glandulosa from the Paranaense Phytogeographic Province were studied using light microscope, and scanning and transmission electron microscope. The exospore has two layers and, according to the species, the exospore surface bears pila, echinae, verrucae, bacula and tubercles. The perispore has two or three layers and its surface is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ferns; Morphology; South America; Sporoderm; Ultrastructure. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602731 |
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