Results 61 to 70 of about 7,115 (254)
Foi realizado um levantamento florístico da pteridoflora da Mata do Estado, localizada no município de São Vicente Férrer, Zona da Mata Norte do Estado de Pernambuco. O estudo foi desenvolvido nesta área, devido a sua grande extensão, ca. 600ha, e também
Marcio Roberto Pietrobom +1 more
doaj +1 more source
A regional assessment of the indigenous vascular plants of Niue is presented using the IUCN Red List criteria. The assessment was undertaken during a community workshop that drew on the indigenous local knowledge and scientific information. The assessment comprised 197 named taxa and 8 indeterminate entities, with 4 (2.0%) taxa assessed as Extinct and ...
Peter B. Heenan +2 more
wiley +1 more source
Study oncharacteristics of Leaf epidermis of 10 species of Ferns
The leaf epidermal structures of 10 species of ferns (5 genera;3 families) were investigated under light microscope (LM).The results indicated that:(1) Epidermis cells of ferns are mostly irregular,with deep smuate anticlinal walls;(2) The stomatal ...
YANG Li +4 more
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The Structure of Petioles in Pteris (Pteridaceae)
Abstract We studied the petiole structure of twelve American species of Pteris: P. ciliaris, P. cretica, P. deflexa, P. denticulata, P. ensiformis, P. exigua, P. inermis, P. multifida, P. mutilata, P. quadriaurita, P. tristicula and P. vittata, using both light and scanning electron microscopy. We found that petioles are characterized externally by the
Martínez, Olga Gladys, Vilte, Ignacio
openaire +2 more sources
Neste trabalho apresenta-se o tratamento taxonômico da família Pteridaceae como parte do projeto "Licófitas e monilófitas dos ecossistemas paraenses", que vem sendo realizado com o objetivo de identificar e catalogar as espécies da flora estadual.
Sebastião Maciel +1 more
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Plants and Insect Eggs: First Report of a Katydid Using a Fern as Host for Oviposition
Ferns are the second most diverse lineage of vascular plants worldwide and are particularly abundant in tropical forests. However, the ecological significance of such remarkable diversity has been often underestimated. In this article, we report for the first time the observation of ferns, specifically Polytaenium cajenense (Desv.) Benedict ...
Rafael P. Farias +5 more
wiley +1 more source
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
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Adaptive Significance of Nickel Hyperaccumulation by Plants
Metal hyperaccumulation may enhance plant fitness through multiple, non‐exclusive mechanisms, including elemental defense against herbivores and pathogens, altered pollinator interactions, and increased reproductive performance in metal‐rich soils. Metals may also affect plant–plant interactions via elemental allelopathy and improve stress tolerance ...
Molly E. Waddington +2 more
wiley +1 more source
Understanding how natural hybridization and polyploidizations originate in plants requires identifying potential diploid ancestors. However, cryptic plant species are widespread, particularly in Ceratopteris (Pteridaceae).
Junrong Yu +7 more
semanticscholar +1 more source
A comparative study of spores of seven pecies: Taenitis blechnoides (Willd.) Sw., T. hookeri (C. Chr.) Holttum, T. pinnata (J. Sm.) Holttum, Syngramma alismifolia (Presl) J. Sm., S. lobbiana (Hook.) J. Sm., S.
A.V. Vaganov +4 more
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