Results 61 to 70 of about 1,808 (178)

Flora das cangas da Serra dos Carajás, Pará, Brasil: Blechnaceae

open access: yesRodriguésia
Resumo Este estudo trata as espécies de Blechnaceae encontradas nas formações ferríferas da Serra dos Carajás, estado do Pará, com descrições, ilustrações, distribuição geográfica e comentários sobre os táxons.
Alexandre Salino   +2 more
doaj   +1 more source

Blechnum caudatum Cavanilles 1802

open access: yes, 2015
Published as part of Dittrich, Vinícius Antonio De Oliveira, Salino, Alexandre & Monteiro, Reinaldo, 2015, The Blechnum occidentale (Blechnaceae, Polypodiopsida) species group in southern and southeastern Brazil, pp. 201-229 in Phytotaxa 231 (3) on pages 210-211, DOI: 10.11646/phytotaxa.231.3.1, http://zenodo.org/record ...
Dittrich, Vinícius Antonio De Oliveira   +2 more
openaire   +1 more source

Multitemporal Analysis of Land Cover Changes in the Rabanal Páramo Ecosystem (Colombia) From 2000 to 2020 and Its Planning Regulations

open access: yesLand Degradation &Development, Volume 36, Issue 7, Page 2247-2258, 30 April 2025.
ABSTRACT The páramos, with their high biodiversity and benefits to humanity, are crucial ecosystems in Colombia. Despite their importance, there is a significant knowledge gap regarding the extent of land cover changes and the identification of planning regulatory milestones on these ecosystems.
Paulina Vergara   +1 more
wiley   +1 more source

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

Contribución del epifitismo accidental a la distribución de especies de plantas vasculares en un bosque templado lluvioso

open access: yesGayana: Botanica, 2017
In a Valdivian forest stand, we identified vascular plant species occurring as accidental epiphytes, and we determined the contribution of accidental epiphytism on their local abundance.
Rosario Guzmán-Marín, Alfredo Saldaña
doaj   +1 more source

Seis especies nuevas y dos nuevos registros de helechos (Pteridophyta) para Costa Rica

open access: yesRevista de Biología Tropical, 2001
Six new species of Pteridophyta from Costa Rica are described: Seis especies nuevas de Pteridophyta para Costa Rica son descritas: Dryopteris flaccisquama A. Rojas, Hypolepis lellingeri A. Rojas, Hypolepis moraniana A.
Alexander Fco. Rojas - Alvarado
doaj  

Nuevos registros de helechos para Tabasco, México

open access: yesRevista Mexicana de Biodiversidad, 2013
Se registran 13 novedades de helechos para la flora de Tabasco. Las especies fueron encontradas durante una revisión de ejemplares en el herbario UJAT (Universidad Juárez Autónoma de Tabasco) para preparar una guía ilustrada de los helechos de Tabasco ...
William Rolando Cetzal-Ix   +2 more
doaj   +1 more source

Los Pteridófitos de un bosque subandino en el municipio de Albán, Cundinamarca (Colombia)

open access: yesActa Biológica Colombiana, 2004
Se presenta el tratamiento taxonómico de los helechos y plantas afines de un bosque subandino localizado en el municipio de Albán, al occidente de Cundinamarca, entre 1.900 y 2.100 m de altitud.
Luz Amparo Triana Moreno   +1 more
doaj  

Las Pteridofitas en la sierra de San Cristóbal, Chiapas

open access: yesBotan‪ical Sciences, 1947
La mejor manifestación de helechos se encontró en esta selva mesófita de Quercus sobre el Cerro Hueytepec. El helecho más grande y el único arborescente (familia Ciateáceas) es Lophosoria quadriplinnata (Gmel.) C.
Elbert L. Little Jr.
doaj   +1 more source

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