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Flora of the Venezuelan Guayana

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BIGNONIACEAE

25. PARAGONIA Bureau, Bull. Soc. Bot. France 19: 17. 1872.

Lianas, the branchlets terete, interpetiolar glandular fields lacking (very rarely present), petiolar glandular field present; pseudostipules subconical, basally thicker, apically pointed, appressed against twig. Leaves 2-foliolate, sometimes with a minutely bifid (very rarely minutely trifid) tendril. Inflorescence a large terminal, many-flowered panicle. Calyx ± cupular, truncate to ± lobed, lepidote, usually ciliate; corolla magenta, tubular-campanulate, velvety moniliform-pubescent outside. Anthers glabrous, the thecae straight, divaricate. Ovary narrowly cylindric, the walls relatively thick, lepidote; ovules 2-seriate in each locule; disk annular-pulvinate. Fruit an elongate-linear capsule, the valves convex, finely tuberculate with the texture of coarse sandpaper. Seeds thin, 2-winged, the wings chocolate brown, not demarcated from seed body.

Mexico to Bolivia; 2 species, 1 in Venezuela.

Paragonia pyramidata (Rich.) Bureau, Vidensk. Meddel. Dansk Naturhist. Foren. Kj¯benhavn 1893: 104. 1894. -Bignonia pyramidata Rich., Actes Soc. Hist. Nat. Paris 1: 110. 1792.

Liana. Evergreen lowland to montane forests, 50-1000 m; widespread in the flora area. Also widespread elsewhere in Venezuela; Mexico to Bolivia and most of Brazil. Fig. 399.

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Scientific Comments:
Paul Berry (peberry@facstaff.wisc.edu) or Kay Yatskievych (kay.yatskievych@mobot.org).

 
 
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