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FOC | Family List | FOC Vol. 10 | Fabaceae | Albizia

5. Albizia retusa Bentham, London J. Bot. 3: 90. 1844.

兰屿合欢 lan yu he huan

Albizia littoralis Teijsmann & Binnendijk.

Trees, to 25 m tall. Branchlets terete, glabrous. Stipules inconspicuous; leaf glands circular, with somewhat raised mar­gins, ca. 0.5 cm above base; pinnae ca. 3 pairs; leaflets 4-6 pairs, ovate-subrhombic, 2-3 × 1-1.7 cm, both surfaces sparsely puberulent, main vein medial or almost so, base asymmetric, broadly cuneate, apex rounded. Corymbs ca. 10-flowered, arranged in puberulent to tomentose panicles; peduncles ca. 2.5 cm. Flowers dimorphic, pedicellate. Calyx tubular, 2-3.5 mm; teeth inconspicuous. Corolla white, narrowly funnel-shaped, 7-9.5 mm; tube glabrous to faintly puberulent; lobes ± narrowly triangular, ca. 2.5 mm, puberulent to sericeous, apex acute. Sta­mens purple to pink; staminal tube irregularly split, intermedi­ate between corolla tube and corolla. Ovary glabrous; stipe 1-2 mm. Legume indehiscent, yellowish, oblong, ca. 14 × 2.8 cm, bullate over seeds, glabrous. Seeds brown, narrowly elliptic, 8.5-9 × ca. 4.5 mm; pleurogram narrowly elliptic.

Sandy beaches, mangroves; low elevations. Taiwan [Indonesia, Japan (Ryukyu Islands), Malaysia, Philippines, S Thailand; Australia, Pacific islands (Vanuatu)].


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