Oaks of the World

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  Quercus hui
Author Chun 1928
Synonyms Cyclobalanopsis hui (Chun) Chun ex Y.C.Hsu & H.Wei Jen 1993
Local names lei gong qing gang
Range China (Guangdong, Guangxi, Hainan), 300 - 1200 m ;
Growth habit usually 5 m, but may reach 15 m;
Leaves

4.5-10 x 1.5-3 cm; oblanceolate, oblong-elliptic or elliptic-lanceolate; thick; glabrous, lustrous and shiny above; hairless, whitish beneath; margin entire, rolled under, remotely serrate near apex; apex acuminate to obtuse; base cuneate, slightly oblique; midrib and secondary veins raised beneath, flat adaxially; 6-10 vein pairs; tertiary veins slender, evident; petiole 1-1.5 cm, glabrescent;

Flowers April-May; female inflorescences 1-2 cm ; styles 2-3 mm long;
Fruits acorn 1.5 cm long, 2 cm in diameter; oblong or globose, both ends flattened; singly or paired; densely tomentose; enclosed only at the base by cup; cup thin, less than 1.6 cm long and more than 2 cm wide, with 4-6 concentric rings of scales denticulate at rim; cup tomentose outside and inside; scar 7-10 mm wide, depressed; maturing in 1 year;

Bark, twigs and
buds

bark ash-grey, smooth; twigs orangish tomentose, becoming glabrous, with small lenticels;
Hardiness zone, habitat not hardy; in wet forests;
Miscellaneous -- A. Camus : n 33;
-- Sub-genus Cyclobalanopsis;
-- Section Semiserrata, sub-section Semiserratae (Menitsky).
Subspecies and
varieties
 
Pictures

drawing