Results 11 to 20 of about 5,528 (199)
The Cyatheaceae (Polypodiopsida) of Peru [PDF]
Brittonia, 2011 A summary is presented of all Peruvian species of scaly tree ferns (Cyatheaceae). A total of 83 species is native to Peru (Sphaeropteris 1 sp., Alsophila sect. Alsophila 9 spp., Alsophila sect. Gymnosphaera 1 sp., Cyathea 72 spp.), with 13 endemic species in Cyathea and one in Alsophila.
Lehnert, Marcus
core +6 more sources
Do you know Cyathea divergens (Cyatheaceae-Polypodiopsida)? [PDF]
Phytotaxa, 2014 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.
Marcus Lehnert, Lehnert, Marcus
openaire +4 more sources
The fern family Gleicheniaceae (Polypodiopsida) in Brazil [PDF]
Phytotaxa, 2018 We carried out a taxonomic study of the leptosporangiate fern family Gleicheniaceae (Polypodiopsida) in Brazil out and accepted 17 species distributed in three genera. Taxonomic descriptions to the whole family, genera and species are provided, as well as keys to the genera and species, synonymies, maps, illustrations, and notes.
Lima, Lucas Vieira, Salino, Alexandre
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An update on the distribution and affinities of Cyathea ruttenbergii (Cyatheaceae, Polypodiopsida) [PDF]
Phytotaxa, 2021 N ...
ADRIAN TEJEDOR, FABIOLA ARECES-BERAZAIN
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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 +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
Contribuições para a flora de samambaias da Serra dos Carajás, Pará, Brasil [PDF]
Rodriguésia, 2019 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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Towards resolving the complete fern tree of life. [PDF]
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 +2 more sources
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 +2 more
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Morphological and molecular evidence reject conspecificity of Malagasy and Mascarene Parablechnum (Polypodiopsida, Blechnaceae) [PDF]
PhytoKeys, 2022 Under the current treatment of the Blechnaceae, only one species of the fern genus Parablechnum is recognised in the western Indian Ocean, often referred to as P. marginatum. Two varieties are currently recognised within it: a type variety present in the
Sonia Molino +3 more
doaj +7 more sources