墨脱青冈 mo tuo qing gang

Quercus motuoensis C. C. Huang in C. C. Huang & Y. T. Chang, Guihaia 12: 306. 1992.

Trees to 30 m tall. Branchlets dark, sulcate, densely lenticellate; lenticels whitish, rounded, glabrous. Petiole 1.5-2 cm, glabrous; leaf blade oblong to ovate-elliptic, 7-10 × 3-4 cm, subleathery, concolorous, glabrous, base rounded and slightly oblique, margin entire or apically remotely serrate, apex caudate; midvein adaxially impressed; secondary veins 7-9 on each side of midvein, slender, inconspicuous; tertiary veins obscure. Infructescences solitary in axil of a higher leaf, 2-4 cm, with 1 or 2 fruit. Cupule cupular, 0.8-1 × ca. 1.5 cm, enclosing ca. 1/2 of nut, outside glabrous, inside sericeous; bracts in 6 rings, margin remotely triangular-denticulate. Nut depressed globose, 1.4-1.8 × 1-1.3 cm, glabrous; scar ca. 4 mm in diam., slightly convex; stylopodium persistent, ca. 2 mm. Fr. Oct.

* Broad-leaved forests; circa 1700 m. SE Xizang (Mêdog Xian)