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(Last Modified On 5/21/2013)
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(Last Modified On 5/21/2013)
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Genus
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Clytostoma Miers ex Bur.
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PlaceOfPublication
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Adansonia 8: 353. 1868.
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Note
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TYPE: C. callistegioides (Cham.) Bur. ex Griseb.
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Description
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Lianas, stems with 8 phloem arms in cross section; branchlets tetragonal to subterete without interpetiolar glandular fields; pseudostipules variable, usually a cluster of subulate-lanceolate cataphylls more or less resembling a minute bromeliad. Leaves simple to 2-foliolate, often with a terminal simple tendril. Inflorescence a few-flowered panicle or a one to few-flowered axillary or terminal fascicle. Flowers with the calyx cupular to campanulate, truncate, usually more or less 5-denticulate, variously sublepidote to subpuberulous; corolla white to purple, tubular-infundibuliform, somewhat puberulous or glandular lepidote outside; anthers glabrous, the thecae straight, divaricate; pollen grains ecolpate, the exine finely reticulate; ovary ovoid-cylindric, minutely blunt-tuberculate with thick one-celled glandular trichomes, the ovules 2 (-4) -seriate in each locule. Fruit an ellipsoid or suborbicular capsule, the valves parallel to the septum, woody, echinate with retrorse spines; seeds thick, corky, essentially wingless.
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Habit
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Lianas
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Distribution
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Nine species in continental tropical America ranging from Mexico to Uruguay, Argentina and Brazil.
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