Tree to 16 m tall; trunk to 34 cm dbh. Leaves: petiole 6-7 mm long; blade elliptic or subovate, 16-17.5 by 6-6.5 cm, 2.6-2.8 times as long as wide, apex acute, base cuneate, glabrous, 8 or 9 pairs of secondary veins, tertiary venation obscure. Inflorescence c. 10 cm long, 1-3-flowered; peduncle 3-5 mm long; pedicels c. 30 mm long. Sepals 4-7 by 4-5 mm, apex rounded to acute, glabrous, colleters inside. Corolla white; tube c. 26 mm long, lower part c. 16 mm long, upper part c. 10 mm long, glabrous or sparsely pubescent outside, puberulent inside; lobes c. 40 mm long, outside sparsely pubescent or glabrous, inside puberulent [only known from immature flowers, lengths taken from Merrill’s notes]. Stamens probably not exserted from corolla tube. Disk c. 5 mm high. Ovaries 6 mm high. Fruit 17-21.5 by 1.5-1.8 cm. Seeds: grain 20-30 by 2-3 mm; beak glabrous for 10-15 mm, bearing a coma for 40-50 mm; coma hairs 20-50 mm long.
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