大果楠 da guo nan

Phoebe poilanei Kostermans.

Large trees, usually 15-20 m tall; trunk 40-60 cm d.b.h. Bark blackish brown. Branchlets thick, densely yellowish brown tomentose. Terminal buds ovoid, ca. 2 cm, yellowish brown hispidulous. Petiole 1-2 cm, thick, long hairy; leaf blade elliptic-oblanceolate or oblanceolate, 18-30(-38) × 4-7.5(-9) cm, thinly leathery, abaxially sparsely yellowish brown pubescent, patently hispidulous along veins, adaxially glabrous except for midrib, midrib adaxially impressed, lateral veins 23-34 pairs, subparallel, visible on both surfaces, veinlets numerous, conspicuous, subparallel, base attenuate, decurrent, equal on both sides, apex acuminate or shortly acuminate. Panicles 10-21 cm, densely yellowish brown strigose, branched at top; peduncle 7-15 cm. Flowers yellowish green, 4-6 mm. Perianth lobes subequal, ovate-rounded, ca. 4 × 3 mm, yellowish brown strigose on both surfaces. Filaments hairy, those of 3rd series with shortly stipitate or subsessile glands at base. Staminodes sagittate, hairy. Ovary globose, all or upper half hairy; style linear, hairy; stigma inconspicuous or somewhat enlarged. Infructescences subligneous. Fruit ellipsoid or suboblong, 3.5-3.8(-4.2) × 1.9-2.2 cm, glabrous; fruiting pedicel ca. 1 cm; persistent perianth lobes ovate or ovate-elliptic, ca. 6 × 4 mm, leathery, hairy on both surfaces, clasping base of fruit. Fl. Apr-May, fr. Oct-Dec.

Mixed broad-leaved forests; 1200-1800 m. SE Yunnan [N Vietnam].