Morphology and anatomy of the developing fruit and seed of Dalechampia stipulacea Müll. Arg. (Euphorbiaceae) - DOI: 10.4025/actascibiolsci.v31i4.4834

Aparecido Caetano da Silva; Luiz Antonio de Souza

doi:10.4025/actascibiolsci.v31i4.4834

Morphology and anatomy of the developing fruit and seed of Dalechampia stipulacea Müll. Arg. (Euphorbiaceae) - DOI: 10.4025/actascibiolsci.v31i4.4834

Aparecido Caetano da Silva UEM
Luiz Antonio de Souza UEM

DOI: https://doi.org/10.4025/actascibiolsci.v31i4.4834

Abstract

In forest remnants of Maringá, Paraná, Brazil, there is abundance of the liana species, with little studied reproductive structures, morphologically and anatomically. Among these species occurs Dalechampia stipulacea Müll. Arg., which is the object of the present study. It is a Euphorbiaceae with pseudanthium and trichomes that cause irritation of the skin. The fruits and seeds were fixed and cut freehand and in a rotation microtome, according to the usual techniques. The fruit is a schizocarp tricocca with loculicidal and septicidal dehiscence. The mature pericarp presents sclerenchymatous middle mesocarp and endocarp that originate from meristems installed in the ovary mesophyll and epidermis. The inner mesocarp is constituted by a layer of macrosclereids of subepidermic origin. The seed originates from anatropous, bitegmic and crassinucelate ovule; it is exotegmic and albuminous. The seed presents structural characteristics verified in Acalyphoideae, except for the mesotegmen vascularization

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Author Biographies

Aparecido Caetano da Silva, UEM

Mestre em Biologia Comparada, do Programa de Pós-graduação em Biologia Comparada

Luiz Antonio de Souza, UEM

Dossui graduação em Botânica Aplicada Às Plantas Medicinais Turma II pela Universidade Estadual Paulista Júlio de Mesquita Filho (1972) , mestrado em Ciências Biológicas (Botânica) pela Universidade de São Paulo (1978) e doutorado em Ciências Biológicas (Botânica) pela Universidade de São Paulo (1981) . Atualmente é professor titular da Universidade Estadual de Maringá, Outro (especifique) Professor e orientador da Universidade Federal do Paraná, Bolsista de Produtividade em Pesquisa do Conselho Nacional de Desenvolvimento Científico e Tecnológico, funcionário da Universidade Estadual de Londrina, Professor Titular do Centro de Ciências Biológicas, Membro de corpo editorial da Acta Botanica Brasilica e Membro de corpo editorial da Acta Scientiarum (UEM). Tem experiência na área de Botânica , com ênfase em Morfologia Vegetal. Atuando principalmente nos seguintes temas: Acacia paniculata - Lonchocarpus muehlbergianus Currículo Lattes

Published

2009-08-20

How to Cite

Silva, A. C. da, & Souza, L. A. de. (2009). Morphology and anatomy of the developing fruit and seed of Dalechampia stipulacea Müll. Arg. (Euphorbiaceae) - DOI: 10.4025/actascibiolsci.v31i4.4834. Acta Scientiarum. Biological Sciences, 31(4), 425-432. https://doi.org/10.4025/actascibiolsci.v31i4.4834

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Issue

Vol 31 No 4 (2009)

Section

Vegetable Morphology & Physiology

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