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      Chave dendrológica e caracterização da morfologia vegetativa da família Lauraceae em um remanescente de Floresta Ombrófila Mista, Curitiba, PR Translated title: Dendrological key and characterization of the vegetative morphology of the Lauraceae family in a fragment of Araucaria Rainforest, Curitiba, Paraná

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          Abstract

          Resumo A família Lauraceae se destaca na composição florística das formações florestais paranaenses, sendo estimadas na Floresta Ombrófila Mista, 23 espécies. Entretanto, a identificação de amostras estéreis é prejudicada, visto que flores e frutos apresentam as melhores condições na determinação das espécies. Este trabalho tem por objetivo quantificar a riqueza florística da família em um fragmento de Floresta Ombrófila Mista e avaliar os caracteres macromorfológicos vegetativos das espécies, buscando padrões que permitam seu reconhecimento prático. Os indivíduos da família foram localizados em campo através de buscas periódicas. Amostras férteis foram coletadas para identificação das espécies através de comparações com materiais de referência e consulta à bibliografia específica. Na caracterização macromorfológica foram selecionados pelo menos dez indivíduos de porte e ambiente similares ou, quando em menor número, todos os indivíduos existentes. Foram identificadas nove espécies de Lauraceae. O trabalho apresenta uma chave dicotômica baseada em caracteres morfológicos vegetativos, descrições e fotografias das espécies encontradas. A diferenciação através de características de folhas mostrou-se mais efetiva para as espécies de Aiouea e Nectandra, enquanto caracteres de casca interna e ramos assumem função importante em Ocotea.

          Translated abstract

          Abstract The Lauraceae family stands out in the floristic composition of Paraná’s forests, and for the Araucaria Rainforest of the state are estimated 23 species. However, the identification of sterile samples is limited, since flowers and fruits have the best conditions in determining the species. This work aimed to quantify the floristic richness of the family in a fragment of Araucaria Rainforest and to evaluate the vegetative macromorphological characteristics of their species, searching for patterns that allow their practical recognition through a dichotomous key. The individuals of the family were located in the field through periodic searches. Fertile material was collected to identify the species by comparisons with reference material, and by consulting specific bibliography. For the macromophological characterization, at least ten individuals of similar size and environment were selected or, in a smaller number, all the existing individuals. Nine species of Lauraceae were identified. This works present a dichotomous key based on vegetative morphological characters, descriptions and illustration. The differentiation through leaf characteristics proved to be more effective for the species of Aiouea and Nectandra, whereas internal bark and branches play an important role in the genus Ocotea.

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          Brazilian Flora 2020: Innovation and collaboration to meet Target 1 of the Global Strategy for Plant Conservation (GSPC)

          Abstract The Global Strategy for Plant Conservation (GSPC) was established by the Conference of Parties in 2002 to decrease the loss of plant diversity, reduce poverty and contribute to sustainable development. To achieve this overarching goal, the GSPC has established a series of targets, one of which is to ensure that plant diversity is well understood, so that it can be effectively conserved and used in a sustainable manner. Brazil hosts more than 46,000 species of plants, algae and fungi, representing one of the most biodiverse countries on Earth, and playing a key role in the GSPC. To meet the GSPC goals of Target 1 and facilitate access to plant diversity, Brazil committed to preparing the List of Species of the Brazilian Flora (2008-2015) and the Brazilian Flora 2020 (2016-present). Managing all the information associated with such great biodiversity has proven to be an extremely challenging task. Here, we synthesize the history of these projects, focusing on the multidisciplinary and collaborative approach adopted to develop and manage the inclusion of all the knowledge generated though digital information systems. We further describe the methods used, challenges faced, and strategies adopted, as well as summarize advances to date and prospects for completing the Brazilian flora in 2020.
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            CLASSIFICATION OF THE ARCHITECTURE OF DICOTYLEDONOUS LEAVES

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              A Key to the Genera of Lauraceae in the New World

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                Author and article information

                Journal
                rod
                Rodriguésia
                Rodriguésia
                Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (Rio de Janeiro, RJ, Brazil )
                0370-6583
                2175-7860
                2020
                : 71
                : e03192018
                Affiliations
                [1] Curitiba Paraná orgnameUniversidade Federal do Paraná orgdiv1Setor de Ciências Agrárias orgdiv2Depto. Ciências Florestais Brazil
                [2] Curitiba Paraná orgnameUniversidade Federal do Paraná orgdiv1Setor de Ciências Agrárias orgdiv2Depto. Ciências Florestais Brazil
                Article
                S2175-78602020000100298 S2175-7860(20)07100000298
                10.1590/2175-7860202071135
                2d4b8534-9e2a-45df-9a70-66eaa0fb152f

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 31 October 2018
                : 07 May 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 20, Pages: 0
                Product

                SciELO Brazil

                Self URI: Texto completo somente em PDF (PT)
                Categories
                Artigos Originais

                floresta com araucária,identificação,dendrologia,identification,dendrology,araucaria rainforest

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