Results 51 to 60 of about 5,514 (193)
Towards resolving the complete fern tree of life.
In the past two decades, molecular systematic studies have revolutionized our understanding of the evolutionary history of ferns. The availability of large molecular data sets together with efficient computer algorithms, now enables us to reconstruct ...
Samuli Lehtonen
doaj +1 more source
Background Plastid genome structure and content is remarkably conserved in land plants. This widespread conservation has facilitated taxon-rich phylogenetic analyses that have resolved organismal relationships among many land plant groups.
Grewe Felix +4 more
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Summary Understanding the long‐term impact of projected climate change on tropical rainforests is critical given their central role in the Earth's system. Palaeoecological records can provide a valuable perspective on this problem. Here, we examine the effects of past climatic changes on the dominant forest type of Southeast Asia – lowland dipterocarp ...
Ana Prohaska +5 more
wiley +1 more source
Contribuições para a flora de samambaias da Serra dos Carajás, Pará, Brasil
Resumo Este estudo trata os táxons das famílias Athyriaceae, Lomariopsidaceae, Metaxyaceae e Saccolomataceae (Polypodiopsida) encontrados nas formações de Floresta Ombrófila Densa circunvizinhas às formações de canga da Serra dos Carajás, estado do Pará,
Lucas Vieira Lima +4 more
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Catálogo de las plantas vasculares de Chile
Se presenta un catálogo de las plantas vasculares que crecen en Chile. Está organizado por divisiones, Pteridophyta (Lycopodiopsida y Polypodiopsida), Pinophyta (Gnetopsida y Pinopsida) y Magnoliophyta (Liliopsida y Magnoliopsida), y dentro de cada ...
Roberto Rodriguez +12 more
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Do you know Cyathea divergens (Cyatheaceae-Polypodiopsida)? [PDF]
The Neotropical scaly tree fern Cyathea divergens is a paradigm of a variable species with a wide geographical range. Studies in herbaria and in the field reveal that C. divergens is less frequently collected and less variable than previously thought.
openaire +1 more source
Palinomorfos del Holoceno en la cuenca alta del Río Lerma, Estado de México, México
En los sedimentos de la laguna de Chignahuapan, Estado de México, México, se identificaron 96 palinomorfos. Se encontraron 8 taxa correspondientes a algas, un género y una familia tanto para Equisetopsida como para Lycopodiopsida, y 6 familias con 10 ...
Beatriz Ludlow-Wiechers +2 more
doaj +1 more source
Pteridophyte distribution of the Urals and adjacent areas: a dataset [PDF]
Data on the species diversity and distribution of pteridophytes (lycophytes and ferns) in the Urals and adjacent areas are presented. The dataset includes 13,742 observations of two classes Lycopodiopsida and Polypodiopsida.
Denis Melnikov +21 more
doaj +3 more sources
Asplenium sylvaticum (Aspleniaceae), a new fern species from Yungas and Paraná forests, Neotropical region [PDF]
A new species of Asplenium L. (Aspleniaceae) is described and illustrated. Asplenium sylvaticum is endemic of the Yungas and Paraná biogeographic provinces in the Southern Cone. The main diagnostic characters for this taxon are: apical pinnae with one to
MARCELO D. ARANA +3 more
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The first register of the weed fern Pteris cretica var. laeta (Pteridaceae) in central Argentina
Pteris cretica L. var. laeta is recorded for the first time in the Comechingones biogeographic province in central Argentina. This is the first record of P. cretica in central Argentina, and P. cretica var. laeta for the country. Until now Pteris cretica
Marcelo Daniel Arana +3 more
doaj +1 more source

