滇青冈 dian qing gang

Quercus glaucoides (Schottky) Koidzumi (1916), not M. Martens & Galeotti (1843); Q. schottkyana Rehder & E. H. Wilson.

Trees to 20 m tall. Branchlets grayish green, tomentose when young, glabrescent. Petiole 0.5-2 cm; leaf blade long elliptic to obovate-oblanceolate, 5-12 × 2-5 cm, leathery, abaxially grayish green and tawny woolly-tomentose but somewhat glabrescent, adaxially green, base cuneate to subrounded, margin beyond basal 1/3 serrate, apex acuminate to caudate; midvein abaxially prominent but adaxially impressed; secondary veins 8-12 on each side of midvein; tertiary veins abaxially conspicuous. Female inflorescences 1.5-2 cm. Cupule bowl-shaped, 6-8 × 8-12 mm, enclosing 1/3-1/2 of nut, outside pale brown tomentose, inside pale brown sericeous; bracts in 6-8 rings, margin subentire. Nut ellipsoid to ovoid, 1-1.4 × 0.7-1 cm, pubescent when young, glabrescent; scar 5-6 mm in diam., slightly convex; stylopodium persistent, short. Fl. May, fr. Oct

* Broad-leaved evergreen forests in mountains; 1500-2500 m. Guizhou, Sichuan, Yunnan.