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(Last Modified On 11/27/2012)
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(Last Modified On 11/27/2012)
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Species
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DIALIUM GUIANENSE (Aubl.) Sandwith
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PlaceOfPublication
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Lloydia 2:184. 1939.
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Synonym
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Arouna guianensis Aubl. P1. Guian. Franc. 1:16, t. 5. 1775. Aruna divaricata Willd. Sp. P1. 1:156. 1798. Dialium divaricatuni Vahl, Enum. 1:303. 1805. Dialium acuminatumr Spruce ex Williams, in Field Mus. Publ. Bot. 15:201. 1936.
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Description
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Tall tree, with glabrous or puberulent branchlets. Leaves mostly 5- to 7- foliolate, caducous-stipulate, short-petiolate; rachis about 5-8 cm. long, often puberulent; leaflets ovate to elliptic-lanceolate, apically attenuate, basally rounded to cuneate, 3-12 cm. long, 1.5-4 cm. wide, glabrous, conspicuously reticulate, alternate or subopposite; petiolules about 3 mm. long, flattened or sulcate above, somewhat callous. Inflorescence an extended, branching panicle, terminal or sub- terminal, puberulent to glabrous; bracts caducous; pedicels very short. Flowers small, inconspicuous, apetalous; calyx pubescent without, densely so in bud, the receptacular portion short and stocky, the 5 lobes expanded, imbricate, obtuse, up to 3 mm. long; petals lacking; stamens 2, short; anthers bilocular, erect and basi- fixed, dehiscing by slits from the apex, the connective conspicuous; ovary sessile or subsessile, pubescent, 2-ovulate; style short, with a small terminal stigma. Legume subglobose to ellipsoid, up to 2.5 cm. long, very short-stipitate, with a fragile exocarp and somewhat fleshy endocarp.
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Habit
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tree
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Distribution
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Central and South America, from Guatemala to Peru and Brazil.
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Specimen
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DARIEN: vicinity of La Palma, Pittier 5486. SAN BLAS: Perme, Cooper 240.
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Note
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The species furnishes a very heavy, durable, brownish wood, used in construc- tion and for posts, but difficult to work because of its hardness. The fruit is edible, and is often consumed by various animals. At least one additional species of Dialium, presumably exotic (Steyermark s. A.), is in cultivation at the Summit Plant Introduction Garden, Canal Zone.
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