(Last Modified On 11/15/2012)
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(Last Modified On 11/15/2012)
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Genus
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ENTEROLOBIUM Mart.
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PlaceOfPublication
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Flora 20:Beibl. 117. 1837.
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Synonym
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Feuilleea Ktze. Rev. Gen. P1. 1:182. 1891, in part.
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Description
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Unarmed trees, usually large, the branchlets pubescent or glabrous. Leaves bipinnate, moderate or large, 2- or few-ranked; petiole prominent, bearing a gland usually near the middle; pinnae few to many, opposite, the rachis bearing glands especially terminally; leaflets usually numerous and small, inequilateral; stipules inconspicuous, caducous. Inflorescence of solitary to fasciculate pedunculate heads, axillary, or paniculate by insertion at defoliate nodes; peduncles slender; heads small, globular; flowers condensed, sessile, small; bracts small and inconspicuous. Flowers whitish; calyx campanulate to tubular-funnelform, valvate, briefly 5- dentate; corolla more or less funnelform, 5-lobed, valvate, about double the calyx; stamens 10 to many, exceeding the corolla, united below into a short, included staminal tube; anthers small, eglandular, quadrangular; ovary sessile, several- ovulate; style slender, equalling or exceeding the stamens, the stigma small. Legume diagnostic, circinnate or reniform, coiled into a complete or nearly complete circle, compressed or almost flattened but nevertheless somewhat fleshy, usually glabrous and lustrous, fairly broad, ligneous, indehiscent, septate between the seeds, the seeds transverse.
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Habit
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trees
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Distribution
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Mexico to Argentina. Introduced into Pacific Islands and elsewhere.
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Note
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This small American genus (8 or less species, mostly South American) is re- tained separate from Pithecolobium (and Albizzia) following traditional practice. Nearly all students of the group have realized that Enterolobium probably consti- tutes no more than a section of Pithecolobium (in the broader sense), but for con- venience have retained the genera separate. Morphologically the distinctiveness of Enteralobium rests mostly with the unusual, coiled legume.
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Key
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a. Flower uniformly and densely ferruginous-tomentulose; petiole, rachis, and peduncle ferruginous-tomentulose; leaflets up to 60 or more pairs per pinna, only 2-4 mm. long -1. E. SCHOMBURGKII aa. Calyx and corolla canescent-tomentulose at tips of lobes; petiole, rachis, and peduncle usually subglabrous, not ferruginous; leaflets 15-30 pairs per pinna, 8-1 5 mm. long - 2. E. CYCLOCARPUM
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