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FOC | Family List | FOC Vol. 4 | Fagaceae | Lithocarpus

11. Lithocarpus amygdalifolius (Skan) Hayata, Icon. Pl. Formosan. 6 Suppl.: 72. 1917.

杏叶柯 xing ye ke

Quercus amygdalifolia Skan in F. B. Forbes & Hemsley, J. Linn. Soc., Bot. 26: 506. 1899; Lithocarpus amygdalifolius var. praecipitiorum Chun; Pasania amygdalifolia (Skan) Schottky; Synaedrys amygdalifolia (Skan) Koidzumi.

Trees to 30 m tall; young shoots and young leaf blades abaxially densely covered with tawny crisp hairs, glabrescent. Petiole 1-2 cm; leaf blade lanceolate to narrowly oblong, 8-15 × 2.5-4 cm, ca. 20 × 9 cm on young shoots, thickly leathery, abaxially often oily when young and dry, grayish and covered with waxy scalelike trichomes in mature leaf blades, base cuneate, margin entire or rarely undulate near apex to obtusely undulate-dentate, apex narrowly acuminate to acute; secondary veins 10-16 on each side of midvein; tertiary veins abaxially not visible or obscure. Male inflorescencess solitary or in a panicle; rachis densely pubescent. Female inflorescence with cupules in clusters of ca. 3, sometimes solitary. Infructescences 3-5 cm; rachis 2-4 mm thick. Cupule subglobose, 2-2.5 cm in diam., smooth, completely enclosing nut, wall 1-2 mm thick; bracts usually fused with cupule into intercepted concentric rings, triangular to multilateral. Nut subglobose 1.8-2 cm in diam., puberulent at apex, wall 1.5-2 mm and slightly thicker than wall of cupule; scar covering more than 1/2 of nut, convex. Fl. Mar-Sep, fr. Aug-Dec of following year.

Broad-leaved evergreen forests; 500-2300 m. S Fujian, Guangdong, S Guangxi, Hainan, C to S Taiwan [Vietnam]


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