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Acta Botanica Brasilica

Print version ISSN 0102-3306


ASINELLI, Marta Eglaé Camargo; SOUZA, Maria Conceição de  and  MOURAO, Káthia Socorro Mathias. Fruit ontogeny of Garcinia gardneriana (Planch. & Triana) Zappi (Clusiaceae). Acta Bot. Bras. [online]. 2011, vol.25, n.1, pp.43-52. ISSN 0102-3306.

Garcinia gardneriana (Clusiaceae) is a small to medium-sized tree that usually occurs on the floodplains of the Paraná River and it is an important food source for the local inhabitants. The fruit itself is consumed in natura, and juices and sweets are made from it. The purpose of this study was to describe morphological and structural aspects of fruits and seeds of this species in order to classify the fruit type and the pulpy layer which involves the seeds. The material analyzed consisted of ovary and fruits in different stages of development, collected from five plants from Aurélio Island, Baía River (MS, BR) and the description was done according to standard procedures in anatomy. The fruit is a yellowish-orange spherical berry ("bacóide" type). The smooth, coriaceous skin consists of the lignified exocarp. The endocarp cell layers are derived from the activity of an adaxial meristem that undergoes radial elongation. The edible sweet white pulp is formed by the endocarp, as well as the spongy mesocarp, in which the secretory ducts lose their function. The unitegmic anatropous ovules develop into anatropous exalbuminous seeds with a collapsed and undifferentiated testa. The embryo is hypocotylar. The features here described generally occur in Clusioideae-Garcinieae and Symphonieae.

Keywords : anatomy; Guttiferae; morphology; pericarp; seed.

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