Results 11 to 20 of about 5,347 (163)

Aspleniaceae (Polypodiopsida) in the state of Mato Grosso, Brazil

Rodriguésia, 2023
We present a floristic-taxonomic survey of the species of Aspleniaceae in Mato Grosso as part of a series on the flora of lycophytes and ferns in this state. The study is based on an analysis of national and foreign herbaria specimens.
Lana da Silva Sylvestre, Atiles Reis, Paulo Gunter Windisch   +2 more
doaj   +3 more sources

Nephrolepis (Lomariopsidaceae - Polypodiopsida) na Amazônia brasileira [PDF]

Rodriguésia, 2016
As espécies de Nephrolepis , segundo especialistas, são consideradas confusas do ponto de vista taxonômico, principalmente quanto aos caracteres morfológicos usados para definir os táxons restritos ao continente americano. No total, o gênero apresenta 19
Sebastião Maciel
doaj   +3 more sources

Unraveling the Parablechnum cordatum (Blechnaceae: Polypodiopsida) complex puzzle [PDF]

Acta Botânica Brasílica
Parablechnum cordatum (Blechnaceae) exhibits significant morphological variability, with many species considered as its synonyms, and is treated as a species complex by several authors. In this study, we offer a comprehensive revision of the taxon and an
Giesta Maria Olmedo Machado, André Luís de Gasper   +1 more
doaj   +2 more sources

Structure and chemical nature of intercellular protuberances in Dennstaedtiaceae rhizomes (Polypodiopsida)

Acta Scientiarum: Biological Sciences, 2023
Intercellular protuberances (IPs) are projections on the cell surface and have been reported for families of ferns, Gymnosperms, and Angiosperms. Data on the type, chemical composition, and distribution of these structures among vascular plants are ...
Ivan Becari-Viana, Pedro Bond Schwartsburd , Aristéa Alves Azevedo   +2 more
doaj   +2 more sources

Dennstaedtiaceae (Polypodiopsida) no estado de Minas Gerais, Brasil [PDF]

Rodriguésia, 2011
Resumo Dennstaedtiaceae Pic. Serm.sensu lato é formada por cerca de 20 gêneros e 175 espécies. A família é caracterizada pelo caule ereto, raramente arborescente, curto a longo-reptante, com tricomas e/ou escamas, folhas geralmente pinadas, raro simples,
Francine Costa Assis, Alexandre Salino
doaj   +3 more sources

Notas nomenclaturais em Aspleniaceae (Polypodiopsida) ocorrentes no Brasil [PDF]

Rodriguésia, 2010
Resumo Como parte do estudo taxonômico das Aspleniaceae da flora brasileira, são designados nove lectótipos e propostos sete sinônimos novos. É apresentada uma combinação nova, Asplenium balansae (Baker) Sylvestre e duas mudanças de status, Asplenium ...
Lana da Silva Sylvestre
doaj   +3 more sources

Phenolic compounds in species of the Blechnaceae. [PDF]

Plant Biol (Stuttg)
The occurrence of caffeic acid derivatives in 32 species of Blechnaceae revealed differences in the presence of rosmarinic acid and blechnic acid B, a novel compound in ferns. Abstract Rosmarinic acid and other caffeic and 4‐coumaric acid derivatives are widespread in land plants.
Ufland M, Petersen M.
europepmc   +2 more sources

PWO proteins are associated with PRC2 since their emergence in vascular plants. [PDF]

New Phytol
Summary The Polycomb repressive complex 2 (PRC2), a conserved histone methyltransferase complex, plays a central role in transcriptional silencing across eukaryotes. Here, we investigate the evolution of PWWP‐DOMAIN INTERACTORS OF POLYCOMBS (PWOs), which interact with PRC2, and examine the conservation of the PWOs‐PRC2 interaction across plant ...
Khan A, Haider S, Sharaf A, Kusová A, Skalák J, Jourdain C, Rennie M, Schrumpfová PP, Hejátko J, Schubert D, Farrona S, Mozgová I.   +11 more
europepmc   +2 more sources

Genetic Diversity Impacts Climate-Induced Species Range Shifts. [PDF]

Ecol Lett
Genetic diversity may buffer species against climate‐driven range contractions and facilitate expansions, but its role at a global scale remains unclear. Using 4673 range shift estimates for 1888 species, we show that higher genetic diversity reduces trailing edge contractions under rapid warming and accelerates leading edge expansions under moderate ...
Oliveira BF, Bertrand R, Comte L, Lenoir J, Grenouillet G, Lancaster LT, Murienne J, Diamond S, Scheffers BR, Bandara RMWJ, Lawlor JA, Moore NA, Wolfe BW, Villalobos F, Weiskopf SR, Thompson LM, Pinsky ML, Rolland J.   +17 more
europepmc   +2 more sources

Towards resolving the complete fern tree of life.

PLoS ONE, 2011
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