(Last Modified On 4/9/2013)
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(Last Modified On 4/9/2013)
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Genus
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Allamanda L.
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PlaceOfPublication
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Mant. P1. Altera 214. 1771.
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Description
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Shrubs, sometimes subherbaceous, erect or lianoid, lacticiferous. Leaves qua- ternate or opposite, rarely alternate above, non-glandular, pinnately-nerved; petio- late, glandular in the axils. Inflorescences cymose, few- to several-flowered, axil- lary or (falsely ?) terminal. Flowers large and showy; calyx 5-lobed, the lobes + equal, foliaceous, without squamellae within; corolla infundibuliform, without appendages, the limb 5-lobed, sinistrorsely convolute; stamens 5, included, the anthers free and not agglutinated to the stigma, without an enlarged connective; gynoecium 2-carpellate, syncarpous, the ovary superior, the ovules numerous, the nectary annular, the style 1, the stigma umbraculiform below and-bicapitate above. Fruit a capsule, globose or subglobose, spiny; seeds numerous, dry, com- pressed, concentrically winged.
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Distribution
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A genus of about 18 species in the tropics of South America; one species is found in Central America.
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