Abstract

MARTINS, Fabiano Machado  and  LIMA, Jamile Fernandes. Ontogenesis of the pericarp of Temnadenia violacea (Apocynaceae s.l.). Rodriguésia [online]. 2011, vol.62, n.2, pp.437-444. ISSN 2175-7860.  https://doi.org/10.1590/2175-7860201162216.

This work describes the ontogeny of the pericarp of Temnadenia violacea (Vell.) Miers. The ovary is glabrous, superior, with bicarpelar sutural placentation. Each carpel has a single locule with several eggs attached to a well-developed placenta. The ovary wall is composed of outer epidermis, mesophyll and inner epidermis. The fruit is a follicarium composed of two geminate aggregate fruits that are cylindrical, elongated, and woody. In this study two distinct phases of development were considered: young fruit and ripe fruit. The epicarp of the young fruit is uniseriate and the mesocarp can be divided into two distinct regions. The endocarp is formed by cells that are elongated in transverse section. The epicarp of the mature fruit is covered by a thick cuticle having papillae, while the layer of mesocarp cells nearest the endocarp become sclerotized - and together with the cells of the endocarp form the functional endocarp. Non-articulated and ramified laticifers, and lignified and non-lignified fibers were observed in the mesocarp of the mature fruit.

Keywords : follicarium; fruit; development; epicarp; laticifers.

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