山楠 shan nan

Machilus macrophylla Hemsley (1891), not Blume (1851), nor Nees (1836); Phoebe macrophylla Gamble (1914), not Blume (1851).

Large trees, 15-20 m tall; trunk to 70 cm d.b.h. Branchlets terete, glabrous, blackish brown when dry. Terminal buds ovoid or subglobose, 5-8 mm in diam.; bud scales glabrate except for margins, blackish when dry. Petiole thick, 2-3(-4) cm, glabrous, blackish when dry; leaf blade broadly oblanceolate, broadly lanceolate, or oblong-lanceolate, 11-17(-20) × 3-5(-5.5) cm, leathery to thickly leathery, glabrous on both surfaces or abaxially puberulent, midrib thick, abaxially very elevated, adaxially impressed, lateral veins indistinct or sometimes slightly distinct abaxially, veinlets invisible on both surfaces, base cuneate, apex acute or acute-acuminate, rarely mucronate. Panicles thick, subterminal or from base of newly sprouted branchlet, 8-17 cm, glabrous, branched at above middle of peduncle. Flowers yellowish green, 5-6 mm. Perianth lobes ovate-oblong, glabrous or puberulent outside, hairy inside and at margins. Filaments glabrous or hairy at base only, those of 3rd series with long stipitate glands at base. Ovary ovoid; style slender; stigma slightly enlarged. Fruit globose or subglobose, ca. 1 cm in diam.; fruiting pedicel ca. 6 mm, reddish brown when alive; persistent perianth lobes clasping at base of fruit or lax, upper half usually not becoming hard and not caducous, lower half somewhat becoming hard. Fl. Apr-May, fr. Jun-Jul.

● Mountain slopes or valleys, evergreen broad-leaved forests, scattered or pure forests; ca. 1500 m. Gansu, Guizhou, Hubei, Shaanxi, Sichuan, Xizang, Yunnan.

After publication of the family treatment for the Flora of China, this was treated as Machilus montana L. Li et al. (Plant Biodiversity and Resources 33: 158. 2011).