Castanopsis densispinosa Y. C. Hsu & H. Wei Jen

Trees ca. 15 m tall. Branchlets glabrous, densely lenticellate; lenticels small, grayish. Petiole 1-2 cm; leaf blade ovate to oblong-lanceolate, 13-18 × 3.5-6 cm, green on both surfaces, glabrous, margin coarsely dentate but entire on leaves borne apically on branchlet; midvein abaxially raised and adaxially impressed; secondary veins 10-13 on each side of midvein; tertiary veins abaxially conspicuous. Infructescences to 18 cm. Cupule 2-3 cm in diam., splitting into 3 segments, inside densely grayish villous, wall 1-2 mm thick; bracts spinelike, densely covering outside of cupule, ca. 1 cm, free but basal bracts in bundles. Nut 1 per cupule, ovoid, 1-1.4 × ca. 1 cm, sparsely brownish puberulent, apex obscurely 4- or 5-ridged. Fr. Dec.

Yunnan (Jinping Xian)

* Broad-leaved evergreen forests; circa 1700 m.