大明山青冈 da ming shan qing gang

Quercus daimingshanensis (S. Lee) C. C. Huang.

Trees to 15 m tall. Branchlets glabrous. Petiole 5-8 mm, glabrous; leaf blade obovate-elliptic to elliptic, 4-7 × 1.5-3 cm, glabrous, abaxially whitish, adaxially dark green, base cuneate, margin apically remotely serrulate, apex with a short, blunt tip; secondary veins 7-9 on each side of midvein, abaxially slightly raised, adaxially inconspicuous; tertiary veins abaxially slender, evident. Female inflorescence ca. 1 cm; cupules 3-5. Cupule bowl-shaped, ca. 5 mm × 1.2 cm, enclosing ca. 1/3 of nut, outside whitish velutinous; bracts in 5 or 6 rings, margin of apical 2 denticulate, others entire. Nut oblong-ellipsoid, 2-2.2 × ca. 1.3 cm, glabrous; scar 3-5 mm in diam., flat; stylopodium persistent, evident. Fl. Mar-Apr, fr. Oct.

* Mixed mesophytic forests in mountains; circa 1000 m. C Guangxi (Daming Shan)