Results 61 to 70 of about 869 (186)

Análise florística das pteridófitas do Parque Nacional da Restinga de Jurubatiba, Rio de Janeiro, Brasil Floristic analysis of the pteridophytes of the Restinga de Jurubatiba National Park, Rio de Janeiro, Brazil

open access: yesActa Botânica Brasílica, 2004
O Parque Nacional da Restinga de Jurubatiba, localizado no norte do Estado do Rio de Janeiro, abrange os municípios de Macaé, Carapebus e Quissamã. Foram registradas para a área de estudo 12 famílias com 21 gêneros e 32 espécies.
Marcelo Guerra Santos   +2 more
doaj   +1 more source

Was the Dry Diagonal of South America a Barrier for Dispersing Pteridaceae (Polypodiopsida) Species Between the Brazilian Atlantic Forest and Amazon Forest?

open access: yesJournal of Biogeography, Volume 52, Issue 8, August 2025.
ABSTRACT Aim We sought to assess how phylogenetic patterns within the fern family Pteridaceae are related to the history of the Amazon Forest and the Brazilian Atlantic Forest, as well as the Dry Diagonal of South America. The age of taxa present in these regions was estimated, as well as those found in previously identified areas of endemism for the ...
Aline Possamai Della   +3 more
wiley   +1 more source

FIGURE 1. Parablechnum prostratum. A. Habit, B in A new species of Parablechnum (Blechnaceae) with prostrate leaves

open access: yes, 2023
FIGURE 1. Parablechnum prostratum. A. Habit, B. Detail of the fertile pinnae, C. Rhizome scale, D. Petiole scale, E-F. Pinnae scales, G. Aerophore (J. Murillo et al. 4901 COL). Drawing by M.
Triana-Moreno, Luz A., Murillo-A, José
core   +1 more source

Hydroclimate variability in the eastern Kimberley, Australia, since the last deglaciation

open access: yesJournal of Quaternary Science, Volume 40, Issue 5, Page 893-912, July 2025.
ABSTRACT The climate of the Kimberley region in tropical northwest Australia is dominated by the Indo‐Australian summer monsoon (IASM). Understanding of the palaeoclimate since the Last Glacial Maximum in this region, which is well placed to record IASM variations, is currently based on few records.
Teresa Dixon   +8 more
wiley   +1 more source

Tracing the biogeographic history of the world's most isolated insular floras

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 4, Page 952-973, July 2025.
We inferred the spatio–temporal colonization histories of seven vascular plant lineages (Acaena magellanica, Austroblechnum penna‐marina, Azorella selago, Colobanthus kerguelensis, Notogrammitis crassior, Polystichum marionense, Pringlea antiscorbutica) using phylogenetic, divergence time estimation, and Bayesian Island Biogeographic analyses.
Ángela Aguado‐Lara   +7 more
wiley   +1 more source

Новое изолированное местонахождение Blechnum spicant (L.) Roth (Blechnaceae) в Архангельской области

open access: yesTurczaninowia, 2020
Приводятся данные о находке нового изолированного местонахождения Blechnum spicant (L.) Roth (дербянка колосистая) на Онежском полуострове (Архангельская область, северо-запад России).
Олег Владимирович Морозов
doaj   +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

Morfología, caracterización y distribución geográfica de Blechnum cordatum (Blechnaceae-Pteridophyta). [PDF]

open access: yes, 2008
Morfología, caracterización y distribución geográfica de Blechnum cordatum (Blechnaceae-Pteridophyta). Blechnum cordatum fue estudiado en especímenes de numerosas localidades de su extensa área de distribución. Crece en Mesoamérica, Antillas, Sudamérica,
Passarelli, Lilian Mónica   +6 more
core   +1 more source

ATLAS DE LAS ESPORAS DE PTERIDÓFITOS DE CHIPAQUE (CUNDINAMARCA, COLOMBIA)

open access: yesCaldasia, 2006
Se describen las esporas de 53 especies de pteridófitas (helechos y plantas afines)agrupadas en 25 géneros y 17 familias, presentes en la vereda Marilandia, municipiode Chipaque, Cundinamarca.
CONTRERAS-DUARTE ANDRÉS RICARDO   +2 more
doaj  

Exploring leaf morphology of Parablechnum cordatum complex (Blechnaceae): An outline analysis approach using Elliptic Fourier Analysis for taxonomic resolution [PDF]

open access: yesActa Botânica Brasílica
Parablechnum is a genus in the fern family Blechnaceae that exhibits wide morphological variation without a distinct taxonomic discontinuity. To address this problem, we applied the technique of Elliptic Fourier Analysis to evaluate leaf shape by ...
Natália Deggau da Costa   +1 more
doaj   +2 more sources

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