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

15. Archidendron robinsonii (Gagnepain) I. C. Nielsen, Adan­sonia, n.s. 19: 26. 1979.

棋子豆 qi zi dou

Pithecellobium robinsonii Gagnepain, Notul. Syst. (Paris) 2: 281. 1912; Abarema robinsonii (Gagnepain) Kostermans; Albizia robinsonii (Gagnepain) Y. H. Huang; Cylindrokelupha robinsonii (Gagnepain) Kostermans; Paralbizzia robinsonii (Gagnepain) Kostermans.

Trees, 8-9 m tall. Branchlets brown or reddish, cylindric, glabrous, with curved leaf scars. Leaf petiole 2-6 cm; petiolar gland circular, less than 0.5 mm high, 0.5-0.7 mm in diam., at upper portion of petiole and insertion of leaflets; rachis of pinnae 6-11 cm; pinnae 1 pair; petiolules ca. 4 mm; leaflets 3 pairs, opposite or subopposite, elliptic or lanceolate, 5-14(-20) × 3-5(-10) cm, both surfaces glabrous, lateral veins 3 or 4 pairs, conspicuous, base cuneate or acute, symmetric or not, apex acuminate. Heads 6-8-flowered, arranged in axillary pani­cles to 20 cm; peduncles 1-1.5 cm. Calyx urceolate or cup-shaped, 4.5-7 mm, glabrous; teeth inconspicuous. Corolla fun­nel-shaped or campanulate, (0.9-)1.2-1.5 cm; lobes narrowly ovate or elliptic, 4-5 mm, abaxially and apically sericeous. Staminal tube equaling corolla tube. Ovary glabrous; stipe 6-8 mm. Legume straight, cylindric, 10-20 × 3-3.5 cm; valves brown, leathery. Seeds to 7, ca. 2.5 × 2.5 cm, both ends turbi­nate; testa brown, crustaceous.

Dense forests of valleys; 300-700 m. Guangxi, Yunnan [Vietnam].


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