Quercus dinghuensis C.C.Huang

China (Guangdong, in the Dinghu Shan); to 1000 m ;

reaches 8 m;

8-9 x 2-2.5 cm; oblong elliptic; evergreen; apex rounded, base cuneate or remotely rounded; margins entire and slightly revolute; at first very tomentose, becoming glabrous; dark green above, grey green beneath; 12-13 vein pairs; petiole 1-1.5 cm;

acorn elliptic, 3-3.5 cm long, 1.7-2 cm wide; most often paired; enclosed 1/3 by cup; cup 1.8 cm long x 2-2.5 cm wide, glabrescent, hard, 4 mm thick, with scales not denticulate in 4-5 concentric rings; scar 5 mm wide; stylopodium persistent;

broad-leaved evergreen forests, in mountains;

– Sub-genus Cerris, Section Cyclobalanopsis; – Threatened (IUCN Red List Category : CR)