长叶野桐 chang ye ye tong

Mallotus eberhardtii Gagnepain; M. grossedentatus Merrill & Chun.

Shrubs or small trees, 2-10 m tall. Branchlets and inflorescences densely gray stellate-puberulent. Leaves opposite, each pair somewhat unequal or exceedingly unequal, rarely alternate; stipules lanceolate, 3-4 mm; petiole 1.5-8 cm, puberulent; leaf blade oblong-obovate, elliptic, rarely oblanceolate, 10-22 × 5-10 cm, papery or thinly leathery, adaxially glabrous, abaxially stellate puberulent along veins, very sparsely or scarcely yellow glandular-scaly, base cuneate, sometimes broadly cuneate, with basal glands 2-4, margin repand-dentate or denticulate, apex acuminate or subcaudate; smaller leaves elliptic or ovate, 6-10 × 4-6.5 cm, sometimes subsessile; lateral veins 8-12 pairs. Male inflorescences terminal or axillary, unbranched, 5-15 cm; bracts triangular, ca. 1.5 mm. Male flowers 2-5-fascicled; pedicel 2-5 mm; calyx lobes 3, elliptic, ca. 3 mm, tomentulose; stamens 40-50. Female inflorescences 10-18 cm, unbranched; bracts triangular, 1.5-2.5 mm. Female flowers: pedicel 4-5 mm; sepals 4 or 5, lanceolate, ca. 3 mm; ovary densely softly spiny; styles 3, ca. 4 mm, base connate, plumose. Capsule 3-locular, 12 mm in diam., puberulent, densely softly spiny, 2-3 mm. Seeds subglobose, brownish, ca. 6 mm in diam. Fl. Apr-Oct, fr. Jun-Dec.

Limestone mountain valleys or mountain slopes, forests; 300-1500 m. Guangxi, Guizhou, Hainan, E Yunnan [N Vietnam].