Branchlets reddish-brown, finely and densely lenticellate, glabrous. Leaves ovate-lanceolate, shortly acuminate to an obtuse apex, rounded at the base, 2 1/4–3 1/4 in. long, 1–1 1/2 in. broad, coriaceous, glabrous, dull on both surfaces, margin crispate; nerves very indistinct, the lateral rather oblique, veins hardly visible; petiole about 3 lin. long. Umbels axillary, solitary, 4-flowered, glabrous; peduncle stout, 1–1 1/4 lin. long, sockets of the pedicels saucer-shaped, 3/4 lin. in diam., separated by the small flat top of the peduncle; pedicels stout, about 1/2 lin. long; bract shallowly and obliquely cupular, dorsal margin 5/8 lin. long, ventral margin 3/8 lin. long. Receptacle and calyx together narrowly campanulate, 1 1/2 lin. long; receptacle nearly 3/4 lin. long, gradually broadened upwards, 3/4 lin. in diam. at the apex. Calyx ascending, 3/4 lin. long, truncate, irregularly split, with a slight annular thickening inside near the base. Corolla 1 3/4 in. long in bud, glabrous; tube splitting between all the lobes 4–8 lin. down from the insertion of the stamens (to 9–10 lin. above the base), basal swelling obovoid, 2 1/4 lin. long; lobes reflexed, lanceolate-spathulate, 4 1/4–4 1/2 lin. long from the insertion of the stamens, upper enlarged part lanceolate, acute, 2 lin. long, over 1/2 lin. broad. Filaments inflexed, tapering upwards, 2 1/2–2 5/8 lin. long; tooth 1/4 lin. long; anthers oblong, nearly 1 lin. long. Disc pentagonal, hardly lobed, 1/6 lin. high. Style skittle-shaped above, thickened part 2 1/2 lin. long, neck 1 lin. long, the upper half much thicker than the lower; stigma oblong-ellipsoid, about 1/2 lin. long.
