2. Machilus decursinervis Chun, Acta Phytotax. Sin. 2: 170. 1953.
基脉润楠 ji mai run nan
Persea decursinervis (Chun) Kostermans.
Trees, 6-13 m tall, rarely up to 20 m; trunk to 27 cm d.b.h. Branchlets thick, dark brown when dry, glabrous. Winter buds broadly ovoid, ca. 1.6 × 1.8 cm; bud scales subrounded, brownish puberulent outside. Petiole thick, 3-4 cm, glabrous; leaf blade glaucous abaxially, broadly elliptic or elliptic, ca. 13.5 × 8.8 cm, leathery, glabrous on both surfaces, midrib thick, prominently elevated adaxially, lateral veins 8-12 pairs, slender, sometimes forked, base broadly cuneate, usually oblique, apex acuminate or acute. Panicles 3-8, subterminal, 6-11 cm, glabrous; peduncle flattened, branched ca. at middle. Perianth lobes subequal, oblong, ca. 6 mm, puberulent inside. Stamens glabrous, those of 3rd series 3.5-4 mm, with slender long stipitate glands at base. Fruit globose, ca. 1.2 cm in diam.; persistent perianth lobes ca. 8 × 3 mm, membranous; fruiting pedicel slightly thickened, 1-1.5 cm.
Mountains, mixed broad-leaved forests; 500-1100 m (to nearly 2000 m in Jinping, Yunnan). Guangxi, SE Guizhou, S and W Hunan, SE Yunnan [Vietnam].