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

31. Lithocarpus laetus Chun & C. C. Huang ex Y. C. Hsu & H. W. Jen, Acta Phytotax. Sin. 14(2): 83. 1976.

屏边柯 ping bian ke

Trees to 30 m tall. Branchlets of current year tawny pubescent. Petiole 1-1.5 cm; leaf blade oblong-lanceolate, 7-11 × 1.5-3 cm, subleathery, abaxially pubescent, glabrescent, and with lax, rust-colored scalelike trichomes, adaxially pubescent when young but glabrescent except for midvein with age, base broadly cuneate and sometimes asymmetric, margin entire, apex acuminate; secondary veins 13-16 on each side of midvein; tertiary veins abaxially not visible. Infructescence ca. 4 cm; cupules in clusters of ca. 3. Cupule obconic to cupular, 1-1.2 × 2-2.2 cm, enclosing ca. 2/3 of nut, wall 2-4 mm thick; bracts imbricate, triangular, appressed. Nut broadly conical, 1.8-2 × 1.6-1.8 cm, with appressed, rust-colored minute hairs, base broadest, gradually narrowed apically, apex pointed, wall 1-2 mm thick; scar covering ca. 1/3 of nut, convex but margin ± impressed. Fr. Oct.

* Broad-leaved evergreen forests; circa 1700 m. SE Yunnan (Pingbian Miaozu Zizhixian)


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