[Morphology and anatomy of the fruit development of Ocotea puberula (Rich.) Nees and Nectandra megapotamica (Spreng.) Mez (Lauraceae)].
The morphology and anatomy of the fruit development of Ocotee puberula (Rich.) Nees and Nectandra megapotamica (Spreng.) Mez (Lauraceae) was studied in flowers and fruits collected in secondary forests of Maringa, Parana State, Brazil. The fruits of the species are drupes, with epidermic exocarp, parenchymatous mesocarp and endocarp which consists of macrosclereids. The origin of endocarp is the internal epidermis of ovary. The exalbuminous seeds develop from the anatropous ovules and they have testa and tegmen with parenchymatous cells frequently compressed. In the hilum region these teguments show sciereids in radial arrangement. The straight embryo has thick cotyledons which contain reserve substances such as starch and oil. The plumule and hypocotyl-radicle axis are reduced.
de Souza
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Departamento de Biologia, Universidade Estadual de Maringá Av. Colombo no. 5790 - (87020 - 900) Maringá, Paraná, Brasil.
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D001938:Brazil; D019770:Lauraceae / Q000033:anatomy & histology* / Q000196:embryology
Morfo-anatomia do desenvolvimento do fruto de Ocotea puberula (Rich.) Nees e de Nectandra megapotainica (Spreng.) Mez (Lauraceae)