Composição florística e estrutura fitossociológica de um "capão" de &lt;i&gt;Podocarpus lambertii&lt;/i&gt; Klotz., no Rio Grande do Sul.

Longhi, Solon Jonas; Selle, Gerson Luiz; Ragagnin, Loanita Inês Marin; Damiani, José Estevão

doi:10.5902/19805098260

Cited by 8 publications

(2 citation statements)

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“…The dominance of R. mangle has been reported for Brazilian mangroves (MARTINS et al, 2011) and is related to the great dispersion and viability of propagules (JIMENEZ, 1985). This behavior is a guarantee of the permanence of the species in the phytochenosis since that, for Longhi et al (1992), a species has a presence assured in the structure and dynamics of the forest when it is represented in all the strata.…”

Section: Discussionmentioning

confidence: 97%

Floristic and Structural Characterization of the Mangrove Forests in the Estuary of the São Francisco River

Santos

Santana²,

Santos³

et al. 2019

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The objective of this work was characterize the floristic diversity and the phytosociological structure of the mangrove in the São Francisco River estuary in order to contribute to the conservation of this ecosystem. Thirtyfour sampling sites were selected, according to ongoing structural mosaic in the region ranging from 100 to 400 m between themselves, in a total useful area of 0.7625 ha. The evaluated parameters were: density of live and dead trunks; living and dead Basal Area; Absolute Frequency, Relative Frequency and Importance Value. Three typical mangrove species of the São Francisco estuary were found such as Avicennia germinans (L.) Stearn, Rhizophora mangle L. and Laguncularia racemosa (L.) Gaertn. F. Gaertn. The forest height ranged from 2.88 to 15.63 m, the DBH from 3.95 to 19.74 cm, live basal area from 4.22 to 47.83 m² ha-1 and dead basal area from 0.50 to 59.63 m² ha-1. The living trunks density ranged from 375.00 to 9100.00 trunks ha-1 and dead trunk density from 100-2800 trunks ha-1. The described results in this study demonstrated that the mangrove forests presents a structural variability that may be associated with environmental characteristics (marine erosion) and anthropogenic factors. The peculiarities of each site emphasize the importance of preventive actions in the ecosystem conservation.

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Section: Discussionmentioning

confidence: 97%

Floristic and Structural Characterization of the Mangrove Forests in the Estuary of the São Francisco River

Santos

Santana²,

Santos³

et al. 2019

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“…Denominada vulgarmente como pinheiro-bravo, pinheirinho, pinheirinho-alemão ou atamba-açu, é uma árvore dioica, que pode atingir 15 m de altura, helióta e perenifólia, com folhas coriáceas e lineares (LORENZI, 1992;CARVALHO, 2004). Além de ser utilizada como medicinal, particularmente em razão da resina com atividade antimicrobiana (CARVALHO, 2004), desperta grande interesse na indústria madeireira pela qualidade do seu lenho (LONGHI et al, 1992). No entanto, pouco se sabe sobre as características anatômicas da planta, o que levou este trabalho a realizar a diagnose microscópica de folha e caule de P. lambertii, com ns de identicação para o controle de qualidade farmacognóstico.…”

Section: Introductionunclassified

DIAGNOSE MICROSCÓPICA FOLIAR E CAULINAR DE Podocarpus lambertii KLOTZSCH EX ENDL., PODOCARPACEAE

Duarte¹,

Matos²,

Souza³

2011

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RESUMO:A espécie Podocarpus lambertii, denominada vulgarmente de pinheiro-bravo, é nativa do Brasil e ocorre tipicamente em oresta semidecídua de altitude e mata de pinhais. É uma árvore dioica, perenifólia e helióta, que pode atingir 15 m de altura, utilizada popularmente na terapêutica, em razão da resina com atividade antimicrobiana. Como pouco se sabe sobre as características anatômicas dessa planta medicinal, este trabalho realizou a diagnose microscópica de folha e caule de P. lambertii, com ns de identicação para o controle de qualidade farmacognóstico. Folhas adultas e caules jovens foram xados, seccionados à mão livre ou em micrótomo de rotação, e corados. Na folha, em vista frontal, ocorrem estômatos exclusivamente na face abaxial, distribuídos em leiras. As células epidérmicas têm formato retangular e paredes anticlinais com pequenas ondulações. Em secção transversal, há epiderme unisseriada, camada subepidérmica de bras junto a ambas as superfícies, mesolo isobilateral, um único feixe vascular colateral na nervura central e tecido de transfusão acessório em meio ao clorênquima e ao sistema vascular. No caule, o felogênio tem instalação nas camadas intermediárias do córtex e ocorrem bras, esclereídes e um cilindro contínuo de oema externamente ao de xilema. Dutos secretores estão presentes nos órgãos vegetativos analisados. Palavras-chave: Anatomia vegetal, droga vegetal, farmacobotânica, pinheiro-bravo, planta medicinal ABSTRACT:Podocarpus lambertii, popularly known as pinheiro-bravo in Portuguese, is an indigenous species found in semideciduous highland forest and pine wood. It is a dioecious tree, perennial and heliophyte that can reach 15 m high, and used in folk medicine due to the antimicrobial activity of the resin. Since little knowledge is available about this medicinal plant, this work has carried out the microscopic diagnosis of the leaf and stem of P. lambertii for the pharmacognostic quality control. Mature leaves and young stems were xed, sectioned either by freehand or rotary microtome, and then stained. In the leaf, in face view, it occurs stomata restricted to the abaxial surface and arranged in rows. The epidermal cells have rectangular shape and slightly wavy anticlinal walls. In cross-section, it is found uniseriate epidermis, subepidermal layer of bres next to both surfaces, isobilateral mesophyll, a single collateral vascular bundle in the midrib and accessory transfusion tissue between the chlorenchyma and the

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Phytosociological Studies, Economic Value, and Sustainable Use of Alnus nitida: A Monophyletic Species of the Western Himalayas and Hindu Kush Region of the Sino-Japanese Belt of Pakistan

Haq

Rasheed

Manan

et al. 2022

Biodiversity, Conservation and Sustainability in Asia

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Composição florística e estrutura fitossociológica de um "capão" de <i>Podocarpus lambertii</i> Klotz., no Rio Grande do Sul.

Cited by 8 publications

References 2 publications

Floristic and Structural Characterization of the Mangrove Forests in the Estuary of the São Francisco River

Floristic and Structural Characterization of the Mangrove Forests in the Estuary of the São Francisco River

DIAGNOSE MICROSCÓPICA FOLIAR E CAULINAR DE Podocarpus lambertii KLOTZSCH EX ENDL., PODOCARPACEAE

Phytosociological Studies, Economic Value, and Sustainable Use of Alnus nitida: A Monophyletic Species of the Western Himalayas and Hindu Kush Region of the Sino-Japanese Belt of Pakistan

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