16. Ficus glaberrima Blume, Bijdr. Fl. Ned. Ind. 451. 1825.
大叶水榕 da ye shui rong
Ficus feddei H. Léveillé & Vaniot; F. glaberrima var. pubescens S. S. Chang; F. suberosa H. Léveillé & Vaniot; Urostigma glaberrimum (Blume) Miquel.
Trees, to 15 m tall, d.b.h. 15-30 cm. Bark gray. Branchlets pubescent when young or densely covered with short grayish white pubescence. Stipules caducous, lanceolate, ca. 1.5 cm. Petiole 1-3 cm; leaf blade brown to pale brown when dry, narrowly elliptic, 10-20 × 3-7 cm, ± leathery, abaxially glabrous or densely covered with short grayish white pubescence, base broadly cuneate to rounded, margin entire, apex acuminate; basal lateral veins short, secondary veins 8-12 on each side of midvein, conspicuous on both surfaces. Figs axillary on leafy branchlets, paired, orange-yellow when mature, globose, 7-10 mm in diam., sparsely pubescent or glabrous, apical pore small, not navel-like; peduncle 1-1.5 cm, sparsely pubescent or glabrous; involucral bracts upper part caducous but base persistent. Male, gall, and female flowers within same fig. Male flowers: few, near apical pore or scattered; calyx lobes 4, ovate-lanceolate; stamen 1. Gall flowers: sessile or with a short and thick pedicel; calyx deeply 4-lobed; ovary globose; stigma apical, short. Female flowers: sepals [3 or]4; ovary ovoid; stigma apical, long. Achenes ovoid. Fl. and fr. May-Sep.
Open forests in mountains and plains, limestone mountains; 500-2800 m. S Guangdong, W Guangxi, S Guizhou, Hainan, SE Xizang, Yunnan [Bhutan, India, Indonesia, Myanmar, Nepal, Sikkim, Thailand, Vietnam].
This species is a host plant for lac insects.