86. Lithocarpus mairei (Schottky) Rehder, J. Arnold Arbor. 1: 128. 1919.
光叶柯 guang ye ke
Pasania mairei Schottky, Bot. Jahrb. Syst. 47: 665. 1912; Synaedrys mairei (Schottky) Koidzumi.
Trees rarely to 10 m tall, glabrous except branchlets and inflorescences covered with tawny, waxy scalelike trichomes. Petiole 0.8-1.5 cm; leaf blade lanceolate to elliptic, 5-10 × 1.5-4 cm, leathery to papery, yellowish brown when dry, base cuneate and decurrent on petiole, margin entire, apex acuminate; secondary veins 7-10 on each side of midvein, slender, evident, adaxially slightly impressed; tertiary veins abaxially not visible. Male inflorescences paniculate, 4-8 cm, sometimes spicate. Female inflorescences 5-8 cm; rachis covered with tawny, lamellate, waxy scalelike trichomes; cupules in clusters of ca. 3. Infructescences 3-5 cm. Cupule bowl-shaped, 5-8 mm × 1-1.8 cm, enclosing ca. 1/2 of nut, wall ca. 1 mm thick; bracts imbricate, triangular, squamose, appressed, covered with tawny, waxy scalelike trichomes. Nut broadly conical to ± depressed globose, 1-1.5 × 1.1-1.8 cm, glabrous, apex ± flat, wall 0.5-1 mm thick; scar 6-8 mm in diam., slightly concave. Fl. Aug-Sep, fr. Aug-Sep of following year.
* Mixed mesophytic forests in dry places; 1500-2500 m. C to N Yunnan