Results 41 to 50 of about 2,129 (216)

Estudo das atividades vasodilatadora e antioxidante de Cyathea phalerata Mart (Cyatheaceae) [PDF]

open access: yes, 2006
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em FarmacologiaO estresse oxidativo desempenha um importante papel na patogênese de várias doenças humanas, tais como injúria por ...
Hort, Mariana Appel
core  

Gametophyte and sporophyte of tree ferns in vitro culture

open access: yesActa Societatis Botanicorum Poloniae, 2011
Experiments had been carried out on gametophytes and very young fronds of sporophytes with application of Murashige and Skoog (1962) medium. The paper described the results of 15 years in vitro experiments on 16 species of tree ferns belonging to various
Katarzyna Goller, Jan J. Rybczyński
doaj   +1 more source

Fern spore dispersal: A methodological review and experimental field study

open access: yesApplications in Plant Sciences, Volume 14, Issue 1, January-February 2026.
Abstract Spore dispersal is one of the most important but perhaps the least investigated and understood processes in determining the geographical distribution of fern species. After a methodological review of the aerobiology of fern spores, we examined the impact of spore characteristics and meteorological factors on their airborne dispersal.
Felipe Gómez‐Noguez   +6 more
wiley   +1 more source

Winter Protection of Tree Ferns at the Royal Botanic Garden Edinburgh

open access: yesSibbaldia, 2007
Ten plants of six species of tree fern were trialled for frost hardiness during the winter of 2005/06 when they were planted outdoors in the ground of an interior courtyard at the Royal Botanic Garden Edinburgh.
Andrew Ensoll   +2 more
doaj   +1 more source

Diversity, Structure and Regeneration Status of Woody Vegetation in the Chebera Churchura National Park, Southwest Ethiopia

open access: yesInternational Journal of Forestry Research, Volume 2026, Issue 1, 2026.
Most protected areas in developing countries have been mismanaged due to data gaps that would be used for planning management strategies. Without ecological information, it is difficult to develop and implement effective conservation plans and measure the effectiveness of management interventions.
Temesgen Yadeta   +5 more
wiley   +1 more source

Estudo da atividade de flavonóides e de complexos de vanádio na glicemia de ratos diabéticos induzidos com aloxana [PDF]

open access: yes, 2004
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Farmácia.Muitas espécies de plantas são conhecidas na medicina popular pelas propriedades hipoglicemiantes e pelo uso no tratamento
Cazarolli, Luisa Helena
core  

Nuevas especies, nombres nuevamente utilizados y nuevas distribuciones en los helechos arborescentes (Filicales: Cyatheaceae) para el Neotrópico

open access: yesRevista de Biología Tropical, 2001
Dos especies nuevas son descritas para el Neotrópico, cuatro especies anteriormente sinonimizadas son reconocidas, y se amplián la distribución de cuatro especies y una variedad. Las nuevas especies son: Cyathea grayumii A. Rojas y C. panamensis A. Rojas.
Alexander Fco. Rojas - Alvarado
doaj  

Cyathea dombeyi Lellinger

open access: yes
Cyathea dombeyi (Desv.) LellingerFig. 3Cyathea dombeyi (Desv.) Lellinger (Lellinger 1987 [1988]: 94). – Alsophila dombeyi Desv. (Desvaux 1827: 320). – Trichipteris dombeyi (Desv.) Barrington (Barrington 1976: 3).– Type: PERU – Huánuco • “ In Peruvia,” Cochero; 1780; J. Dombey s.n.; lectotype: P [P00642343]
Lehnert, Marcus   +4 more
openaire   +3 more sources

Vegetation Effects on Total Atmospheric Chloride Deposition and Its Variability in Small Islands: Insights From South Pacific's Norfolk Island

open access: yesHydrological Processes, Volume 39, Issue 12, December 2025.
Tree canopies efficiently capture aerosols, with coastal and island environments particularly prone to much higher chloride deposition beneath vegetation compared to open sites. On Norfolk Island, enhancement ranged from 8% to 3742%, driven by canopy structure, exposure, rainfall, and wind.
Paula Campos Teixeira   +4 more
wiley   +1 more source

Tres especies nuevas de Cyathea (Cyatheales: Cyatheaceae) para Colombia

open access: yes, 2016
Three new species of Cyathea Sm. are described and illustrated from Colombia. Cyathea antioquiensis di ers from C. latevagans by its rhizome scales with a narrower pale margin, stipe and rachis with scurf and sessile linear-oblong pinnae.
Tejedor, Adrian   +1 more
core   +2 more sources

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