Results 51 to 60 of about 3,025 (166)
Pteridoflora do Engenho Água Azul, município de Timbaúba, Pernambuco, Brasil
Resumo O presente trabalho apresenta a análise florística das pteridófitas ocorrentes no fragmento florestal Engenho Água Azul, município de Timbaúba, estado de Pernambuco, Brasil.
Marcio Roberto Pietrobom +1 more
doaj +1 more source
É apresentada uma lista anotada das pteridófitas que ocorrem no Município de Santa Isabel do Rio Negro, Amazonas, como uma contribuição ao conhecimento da flora da amazônia brasileira. Na região predominam as florestas inundáveis e podem ser reconhecidos
Carlos Alberto A. de Freitas +1 more
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Tetrataenium manilalianum, a new species of Apiaceae from the Western Ghats, Kerala, India
A new species, Tetrataenium manilalianum C.Rekha, Amruth., Manudev and Sujana sp. nov. (Apiaceae) is described from Kerala, India. The new species appears to be similar to T. sprengelianum (Wight and Arn.) Manden., but it differs in several morphological features, including plant height, leaf and leaflet size and shape, number and size of rays ...
Rekha Chappan +3 more
wiley +1 more source
We carefully observed the submicroscopic structural characteristics of the hairs of the stipe, rachis, costae, fronds and indusia of 15 species of Hypodematium from China and photographed them under an anatomical microscope and scanning electron microscope (SEM).
Xiaojuan Li, Chao Zhang, Jianxiu Li
wiley +1 more source
Dryopteridaceae and Lomariopsidaceae (Polypodiopsida) from Embrapa's Eastern Amazonia Field Station, Moju, Pará, Brazil [PDF]
This study presents the species of the families Dryopteridaceae and Lomariopsidaceae recorded at Embrapa's Eastern Amazonia Field Station. Dryopteridaceae is represented in the area by Cyclodium heterodon (Schrad.) T. Moore var. abbreviatum (C.
SILVA, Marcio Roberto Pietrobom da +1 more
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Measurement of Ungulate Palatability and Browsing Pressure on Japanese Flora
Estimation of palatability and browsing pressure are key techniques for ecosystem management. We compared four methods to estimate palatability based on browsing scar survey and proposed the reference palatability values for the Japanese flora as plant ecological trait.
Fumito Koike, Masayo Isozaki
wiley +1 more source
Polystichum lonchitis (L.) Roth (Dryopteridaceae), especie a excluir de la flora valenciana [PDF]
Polystichum lonchitis (L.) Roth (Dryopteridaceae), species to exclude of the Valencian flora Palabras clave. Pteridophyta, corología, Polystichum, Castellón, Tarragona, España.Key words.
Herrero-Borgoñón Pérez, Juan José +1 more
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Phenolic compounds in species of the Blechnaceae
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.
M. Ufland, M. Petersen
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Polystichum hubeiense (Dryopteridaceae), a new fern species from Hubei, China
Zhang, L., Zhu, Z. M., Gao, X. F. & Zhang, L. B. 2013: Polystichum hubeiense (Dryopteridaceae), a new fern species from Hubei, China. - Ann. Sot. Fennici 50: 107-110. A new fern species, Polystichum hubeiense Liang Zhang & Li Bing Zhang (Dryopteridaceae),
Zhang, Liang +4 more
core
About 14% of all fern species have chlorophyllous spores, which lack dormancy, have thin walls, and have a shorter viability (only a few days in some species). These spores should have limited dispersal distances and be more susceptible to harsher climatic conditions, raising questions about the evolutionary and ecological significance of this trait ...
Daniela Mellado‐Mansilla +5 more
wiley +1 more source

