Results 21 to 30 of about 1,047 (184)

Pteridium aquilinum (Dennstaedtiaceae), a Novel Hyperaccumulator Species of Hexavalent Chromium

Applied Sciences, 2023
Hexavalent chromium (Cr VI) is a highly toxic environmental pollutant produced as a byproduct of stainless steel manufacture and leather tanning.
Felipe de Jesús Eslava-Silva, María Eugenia Muñíz-Díaz de León, Manuel Jiménez-Estrada   +2 more
doaj   +2 more sources

Global chloroplast phylogeny and biogeography of bracken (Pteridium; Dennstaedtiaceae) [PDF]

American Journal of Botany, 2009
Bracken ferns (genus Pteridium) represent an ancient species complex with a natural worldwide distribution. Pteridium has historically been treated as comprising a single species, but recent treatments have recognized several related species. Phenotypic plasticity, geographically structured morphological variation, and geographically biased sampling ...
Der, J. P., Thomson, J. A., Stratford, J. K., Wolf, Paul G.   +3 more
openaire   +4 more sources

Monilófitas da Estação Ecológica do Panga, Uberlândia, Estado de Minas Gerais, Brasil: Dennstaedtiaceae, Dryopteridaceae, Gleicheniaceae, Hymenophyllaceae e Lindsaeaceae

Hoehnea
O presente trabalho apresenta o tratamento taxonômico das espécies de Dennstaedtiaceae, Dryopteridaceae, Gleicheniaceae, Hymenophyllaceae e Lindsaeaceae da Estação Ecológica do Panga.
Adriana A. Arantes, Jefferson Prado, Marli A. Ranal   +2 more
doaj   +2 more sources

Morfologia de esporos de pteridófitas do Parque Estadual das Fontes do Ipiranga (São Paulo, Brasil): Família: 5-Dennstaedtiaceae

Hoehnea
Foram estudados os esporos de onze espécies de pteridófitas pertencentes à família Dennstaedtiaceae do Parque Estadual das Fontes do Ipiranga. A família está representada na área por cinco gêneros: Histiopteris, Hypolepis, Lindsaea, Pteridium e Saccoloma.
Luciano Mauricio Esteves, Carolina Brandão Coelho   +1 more
doaj   +2 more sources

An updated synopsis of Hypolepis Bernh. (Dennstaedtiaceae) from Argentina [PDF]

Phytotaxa, 2014
An updated synopsis of the genus Hypolepis (Dennstaedtiaceae) from Argentina is presented, including the first report of H. stolonifera var. stolonifera for the country and the description of a new variety: Hypolepis stolonifera var. delasotae, named in honour of pteridologist Elías Ramón de la Sota.
Toledo Arana, Javier Marcelo, Yañez, Agustina, Schwartsburd, Pedro B.   +2 more
openaire   +4 more sources

Palynological analysis of Dennstaedtiaceae taxa from the Paranaense Phytogeografic Province that produce monolete spores and its systematic implications (I): Blotiella lindeniana , Histiopteris incisa and Paesia glandulosa

Anais da Academia Brasileira de Ciências
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.
AGUSTINA YAÑEZ, GONZALO J. MARQUEZ, MARTA A. MORBELLI   +2 more
doaj   +2 more sources

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous-Paleogene boundary in western North America. [PDF]

Am J Bot
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Holian FB, Sessa EB, Barclay RS, Dunn RE, Gill JL, Johnson KR, Maccracken SA, Miller IM, Pittermann J, Currano ED.   +9 more
europepmc   +2 more sources

Three new records of fern species (Polypodiopsida) in Senegal, from Dindefelo Falls, Kedougou region [PDF]

Check List, 2021
Blotiella currorii (Hook.) R.M.Tryon. (Dennstaedtiaceae), Dicranopteris linearis (Burm.F.) Underw. (Gleicheniaceae), and Aleuritopteris farinosa (Forssk.) Fée (Pteridaceae) are reported for the first time in the flora of Senegal.
Paterne Arnaud Bernard Mingou, Mathieu Gueye, Komla Elikplim Abotsi, Theophile Bayet, Christophe Cambier, Germinal Rouhan   +5 more
doaj   +3 more sources

FLORADA RESERVA DUCKE, AMAZÔNIA, BRASIL: PTERIDOPHYTA -DENNSTAEDTIACEAE [PDF]

Rodriguésia, 2005
Jefferson Prado
doaj   +2 more sources

Antibacterial Activity of Peruvian Tarasa Species: A Comparative Study of the Antimicrobial Effects of Extracts From Three Different Tarasa Species, T. capitata, T. operculata and T. tenuis, Against Human Pathogens. [PDF]

Int J Microbiol
The growing problem of antibiotic resistance has driven the search for new sources of antimicrobial agents. Plants, particularly those from the Malvaceae family, have showed promising potential in this field. The present study is based on Tarasa extracts, and the antimicrobial action was assessed using Staphylococcus aureus and Escherichia coli as ...
Yauri CR, Trombert AN, Lazarte AM.
europepmc   +2 more sources