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The developmental anatomy of the subterranean system in Mandevilla illustris (Vell.) Woodson and M. velutina (Mart. ex Stadelm.) Woodson (Apocynaceae)

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Author(s): APPEZZATO-DA-GLÓRIA BEATRIZ | ESTELITA MARIA EMÍLIA MARANHÃO

Journal: Revista Brasileira de Botânica
ISSN 0100-8404

Volume: 23;
Issue: 1;
Start page: 27;
Date: 2000;
Original page

Keywords: Underground organs | xylopodium | Mandevilla | Apocynaceae

ABSTRACT
Two species of Mandevilla from the savanna area of São Paulo State, Brazil were studied. These species have been prescribed as folk medicine as infusions or alcoholic extracts of the underground system for treatment of venomous snake bites. To explain the morphological nature of such a system, its ontogeny was described to determine which parts are involved in its formation. In both Mandevilla species examined, the underground system consists of a xylopodium whose basal region joins a tuberous root.
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