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Flora of the Venezuelan Guayana

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BIGNONIACEAE

6. CERATOPHYTUM Pittier, J. Wash. Acad. Sci. 18: 62. 1928.

Lianas with interpetiolar glandular fields, terete branchlets; pseudostipules acute, subulate. Leaves 3-foliolate; terminal leaflet often replaced by a trifid tendril or tendril scar. Inflorescence a few-flowered terminal subcorymbose panicle. Calyx cupular, ± truncate, coriaceous, lepidote, with short, linear, glandular fields descending from the rim; corolla cream to white, thick, tubular-campanulate, pubescent outside. Anthers glabrous, the thecae straight, divaricate. Ovary narrowly cylindric, ± lepidote; ovules 6-8-seriate in each locule; disk pulvinate-cupular. Fruit an oblong-linear, subtetragonal capsule, gibbous at the base and tapering to the apex, the valves parallel to the septum, not flattened, smooth. Seeds 2-winged, the wings papery, brownish, the tip usually subhyaline, not clearly demarcated from seed body.

Neotropics; 1 species.

Ceratophytum tetragonolobum (Jacq.) Sprague & Sandwith, Bull. Misc. Inform. 1934: 222. 1935. -Bignonia tetragonoloba Jacq., Fragm. Bot. 36, t. 40. 1809.

Liana. Semideciduous to evergreen lowland forests, 50-500 m; northern Bolívar. Widespread elsewhere in Venezuela; Mexico, Central America, Colombia, Tobago, Guyana, Suriname, Ecuador, Peru, Brazil, Bolivia. Fig. 365.

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

 
 
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