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FOC | Family List | FOC Vol. 12 | Theaceae | Adinandra

4. Adinandra grandis L. K. Ling, Fl. Reipubl. Popularis Sin. 50(1): 190. 1998.

大杨桐 da yang tong

Trees 13-20 m tall. Young branches grayish brown; current year branchlets green and glabrous; terminal buds long conic, ca. 2 cm, glabrous. Petiole 1-2 cm, thick, glabrous; leaf blade elliptic, 13-18 × 5.5-8.5 cm, leathery, abaxially pale green and reddish brown glandular punctate, adaxially dark green, both surfaces glabrous, midvein abaxially elevated and adaxially impressed, secondary veins ca. 20 on each side of midvein and evident or slightly raised on both surfaces, base broadly cuneate, margin entire, apex acute and with an obtuse tip. Flowers axillary, 2 or 3 in a cluster. Pedicel 1-1.8 cm; bracteoles caducous, ovate, ca. 2.5 mm. Sepals broadly ovate, 8-10 × 6-7 mm, concave, leathery, glabrous, margin ciliolate, apex rounded to obtuse and mucronate. Petals white, broadly ovate, 1-1.4 × ca. 0.8 cm, glabrous. Stamens 46-50, 7-10 mm; filaments 2-3 mm, glabrous; anthers linear-oblong, 5-7 mm, with filiform trichomes. Ovary ovoid, glabrous, (4 or)5(or 6)-loculed with many ovules per locule; style simple, ca. 5 mm, glabrous. Fruit not seen. Fl. Jun-Jul.

● Forests; 900-1400 m. Yunnan (Yuanyang).


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