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Title: Estudo anatômico e palinológico de Antônia ovata Pohl (Loganiaceae)
Authors: Paula, José Elias de
Assunto:: Botânica - anatomia
Issue Date: Aug-1972
Publisher: Instituto Nacional de Pesquisas da Amazônia
Citation: PAULA, José Elias de. Estudo anatômico e palinológico de Antônia ovata Pohl (Loganiaceae). Acta Amazonica, Manaus, v. 2, n. 2, p. 55-70, ago. 1972. Disponível em: <>. Acesso em: 21 nov. 2017. doi:
Abstract: Nesta comunicação o autor considera a anatomia do caule, pecíolo, lâmina foliar e madeira, além dos aspectos morfológicos externo e palinológico, de espécimes de Antonia ovata, ocorrentes na floresta da região do rio Jarí (Estado do Pará) e nos cerrados da Amazônia e do Brasil Central; nomeia os espécimes da mata como sendo uma variedade nova para a ciência: Antonia ovata Pohl var. excelsa Paula.
Abstract: In this paper the author studies extern morphological, palinological and anatomical aspects, aiming to put an end to the doubts in the taxonomic studies of the specimens of Antonia ovata Pohl (or aiming make clear the taxonomy of the specimens of Antonia ovata. Specimens of Antonia ovata from the woods of the region of Jarí river (Amazônia) are considered by the author as a new variety. With its description, the number of varieties of Antonia ovata rose to three: pilosa, ovata and excelsa (new variety). The extern morphological aspect is found among the individuals from three habitats: "cerrados" of Amazônia, Brasil Central and forest of the region Jarí river. The identification of the three varieties is based on the following characteristic. Presence or lack of hairs on the leaves and branches; microscopic structure of wood (see comparative table); height and diameter of the specimens; and finally the habitat. Pollen grains of these two varieties excelsa and ovata present polymorphism. The leaf of that species has structure of a higrophyllous plants. The stem is rich in mucilaginous cells; vascular bundles are bicollateral; the leafknot is bilacunar, and the trace is formed by two vascular bundles.
Licença:: Acta Amazonica - This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). Fonte: Acesso em: 21 nov. 2017.
Appears in Collections:BOT - Artigos publicados em periódicos

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