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      Palinologia de espécies de Solanum L. (Solanaceae A. Juss.) ocorrentes nas restingas do Estado do Rio de Janeiro, Brasil Translated title: Palynology of species of Solanum L. (Solanaceae A. Juss.) from the restingas of Rio de Janeiro State, Brazil

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          Abstract

          Foram estudados 21 táxons de Solanum L., com o objetivo de caracterizá-los palinologicamente e, assim, contribuir para a elaboração de um catálogo polínico da flora das restingas do Estado do Rio de Janeiro. Os táxons examinados foram Solanum affine Sendtn., Solanum americanum Mill. var. americanum,Solanum argenteum Dunal ex Poir., Solanum aturense Dunal, Solanum caavurana Vell., Solanum capsicoides All., Solanum carautae Carv., Solanum cordifolium Dunal, Solanum curvispinum Dunal, Solanum echidnaeforme Dunal, Solanum gardneri Sendtn.,Solanum indigoferum A. St.-Hil., Solanum insidiosum Mart., Solanum mauritianum Scop., Solanum paludosum Moric., Solanum paniculatum L., Solanum paratyense Vell., Solanum pseudoquina A.St.-Hil., Solanum sisymbriifolium Lam., Solanum torvum Sw., Solanum velleum Sw. Os grãos de pólen foram acetolisados, mensurados, descritos e fotomicrografados. A análise sob microscopia eletrônica de varredura foi utilizada, em grãos de pólen não acetolisados, para confirmar as descrições feitas sob microscopia de luz e, em alguns casos para confirmar as descrições de abertura e ornamentação. Constatou-se que os grãos de pólen são pequenos ou médios, isopolares, subprolatos a oblato-esferoidais, 3-colporados, sexina granulada, rugulado-granulada ou escabrada. Pela análise dos resultados obtidos pôde-se concluir que os táxons analisados apresentam certa heterogeneidade polínica, quanto à forma, aos atributos das aberturas e à ornamentação da sexina, podendo-se usar estes caracteres na taxonomia do gênero.

          Translated abstract

          In this study 21 taxa of Solanum L. were investigated for palynological characterization and to contribute to the Pollen Catalog of the Flora of the Rio de Janeiro restingas. The taxa analysed were Solanum affine Sendtn., Solanum americanum Mill. var. americanum,Solanum argenteum Dunal ex Poir., Solanum aturense Dunal, Solanum caavurana Vell., Solanum capsicoides All., Solanum carautae Carv., Solanum cordifolium Dunal, Solanum curvispinum Dunal, Solanum echidnaeforme Dunal, Solanum gardneri Sendtn.,Solanum indigoferum A. St.-Hil., Solanum insidiosum Mart., Solanum mauritianum Scop., Solanum paludosum Moric., Solanum paniculatum L., Solanum paratyense Vell., Solanum pseudoquina A.St.-Hil., Solanum sisymbriifolium Lam., Solanum torvum Sw. and Solanum velleum Sw. Pollen grains were measured, described and illustrated using light microscopy. Non-acetolysed pollen grains were analyzed using scanning electronic microscopy to confirm descriptions of aperture and sexine ornamentation. The pollen grains are small or medium sized, isopolar, subprolate to oblate spheroidal, tricolporate with granulate, rugulate-granulate or scabrate sexine. The results show that the pollen of these taxa are rather heterogeneous in shape and in attributes of aperture and sexine ornamentation which can be used in the taxonomy of the genus.

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          Contribuição à palinologia dos cerrados

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            Pollen morphology and plant taxonomy (Angiosperms)

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              Glossary of pollen and spore terminology

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                abb
                Acta Botanica Brasilica
                Acta Bot. Bras.
                Sociedade Botânica do Brasil (Belo Horizonte )
                1677-941X
                September 2008
                : 22
                : 3
                : 782-793
                Affiliations
                [1 ] Universidade Federal do Rio de Janeiro Brazil
                Article
                S0102-33062008000300015
                10.1590/S0102-33062008000300015
                29571dc6-0944-4504-9e82-5e6623e17c00

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0102-3306&lng=en
                Categories
                PLANT SCIENCES

                Plant science & Botany
                Palynology,Solanaceae,Solanum,Rio de Janeiro,Restinga,Palinologia
                Plant science & Botany
                Palynology, Solanaceae, Solanum, Rio de Janeiro, Restinga, Palinologia

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