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Ontogeny and Structure of the Pericarp of Schinus terebinthifolius Raddi (Anacardiaceae)

DOI: 10.1590/S1516-89132002000100012

Keywords: anacardiaceae, schinus terebinthifolius, pericarp, anatomy, pericarpo, anatomia.

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the fruit of schinus terebinthifolius raddi is a globose red drupe with friable exocarp when ripe and composed of two lignified layers: the epidermis and hypodermis. the mesocarp is parenchymatous with large secretory ducts associated with vascular bundles. in the mesocarp two regions are observed: an outer region composed of only parenchymatous cells and an inner region, bounded by one or more layers of druse-like crystals of calcium oxalate, composed of parenchymatous cells, secretory ducts and vascular bundles. the mesocarp detaches itself from the exocarp due to degeneration of the cellular layers in contact with the hypodermis. the lignified endocarp is composed of four layers: the outermost layer of polyhedral cells with prismatic crystals of calcium oxalate, and the three innermost layers of sclereids in palisade.


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