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(Last Modified On 3/6/2013)
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(Last Modified On 3/6/2013)
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Genus
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CENTROLOBIUM Mart. ex Benth.
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PlaceOfPublication
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Comment. Legum. Gen. 31. 1837.
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Description
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Trees, unarmed. Leaves alternate, imparipinnate, the leaflets several, opposite or subopposite, the glandular-lepidote blades with the costa immersed or sub- prominulous; stipules inequilaterally ovate. Panicles terminal, densely flowered; bracteoles located above the middle of the pedicel. Flowers with the hypanthium subturbinate to campanulate, the upper teeth united, obtuse, the lower teeth acute; vexillum broadly ovate or orbicular; stamens 10, monadelphous, the sheath open above, the anthers versatile; ovary stipitate, the stipe rarely surrounded by a disk, the ovules 2-3, the style slender, curved, the stigma capitate. Fruits large, samaroid, indehiscent, the seminiferous area proximal, bearing a stylar spine, venose, glandu- lar-lepidote; seeds subreniform, separated by transverse or oblique partitions.
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Habit
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Trees
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Distribution
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A small tropical genus limited to Panama and northern South America. One species is introduced into Africa.
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Key
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a. Leaflets 9-21, mostly ovate-oblong, up to 6 cm. wide; hypogynous disk absent; fruit with the stylar spine scarcely free from the body of the wing ........ 1. C. YAVIZANUM (420) This content downloaded on Wed, 6 Mar 2013 10:27:25 AMAll use subject to JSTOR Terms and Conditions1965] FLORA OF PANAMA (Family 83. Leguminosae) 27 aa. Leaflets 7-15, mostly ovate-elliptic, up to 14 cm. wide; hypogynous disk evi- dent; fruit with the stylar spine free from the body of the wing ............................................-...........................................-. ... 2. C . PARAENSE var. ORINOCENSE
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