Dracontomelon duperreanum, commonly known as New Guinea walnut, Pacific walnut, seeds mature in Oct.人面子 ren mian zi
Dracontomelon duperreanum seeds
- Trees, more than 20 m tall; branchlets minutely gray tomentose. Petiole and rachis ribbed, sparsely pubescent; leaf blade 30-45 cm, imparipinnately compound with 11-15 alternate leaflets; leaflet petiolule 2-5 mm; leaflet blade subcoriaceous, oblong, increasing in size from bottom to top, 5-14.5 × 2.5-4.5 cm, base broadly cuneate or rounded, margin entire, apex acuminate, minutely pubescent along midrib on both surfaces, abaxially with white tufts of hair in vein axils, lateral veins 7-9 pairs, reticulate venation prominent on both surfaces. Inflorescence paniculate, axillary or terminal, 10-23 cm, minutely gray pubescent. Pedicel 2-3 mm, minutely pubescent. Sepals ovate to elliptic-ovate, 3.5-4 × ca. 2 mm, obtuse, with minute grayish yellow pubescence on both surfaces. Petals white, lanceolate or narrowly oblong, ca. 6 × 1.7 mm, glabrous, recurved at anthesis, with 3-5 dark brown veins. Stamens 10; filaments ca. 3.5 mm; anthers ca. 1.5 mm. Disk lobed, undulate. Ovary glabrous, 2.5-3 mm; style ca. 2 mm. Drupe ca. 2 cm, ca. 2.5 cm in diam., yellow at maturity; endocarp compressed, 1.7-1.9 cm in diam., 5-locular or 3- or 4-locular by abortion. Fl. Apr-May, fr. Jun-Nov.
Lowland forests; 100-400 m. Guangdong, Guangxi, SE Yunnan [Vietnam].
The names Dracontomelon mangiferum Blume and D. dao (Blanco) Merrill & Rolfe have been misapplied to this species.