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

9. Acacia tonkinensis I. C. Nielsen, Adansonia, n.s. 19: 358. 1980.

滇南金合欢 dian nan jin he huan

Climbers, armed with scattered, recurved prickles on inter­nodes. Branchlets hirsute, with light glands. Stipules caducous, filiform, 4-6 mm; petiole 3.2-5.5 cm, with 2 hollow glands above base and at or above middle, ca. 1.5 mm in diam.; leaflets 17-33 pairs, oblong to subfalcate, 5-9.5 × 2-2.5 mm, adaxial surface and margin strigose, main vein starting centrally at base, running eccentrically toward apex, not parallel to up­per margin, lateral veins inconspicuous, base fully truncate, apex asymmetrically rounded-truncate, apiculate, bent forward. Heads with bracts projecting beyond flowers in bud. Calyx lobes adnate at base only, oblong, ca. 2 mm. Corolla ca. 2.5 mm; lobes triangular-ovate, ca. 1 mm. Stamens numerous. Ovary puberulent. Legume red-brown, oblong, flat, 1.3-2.4 × 1.2-1.3 cm, papery, margin slightly sinuate, with glandular hairs, dehiscent. Seeds irregularly ellipsoidal, 8-12 × 5-7 mm.

Thin forests; 400-700 m. S Yunnan [Laos, N Vietnam].


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