Quercus kerrii Craib

SW China; Thailand; Vietnam; Myanmar; Laos; 100-1800 m;

usually 7-8 m, but reaches 20 m;

10-24 x 3-8 cm; evergreen or nearly so; leathery; oblong-elliptic, lanceolate or oblong-lanceolate; margin apical 2/3 serrate;  apex slightly obtuse to shortly acuminate; base rounded or broadly cuneate; shiny green above, hairy beneath; midrib weakly raised underside; 10-14 veins pairs; tertiary veins evident abaxially; petiole tomentose 1-2 cm long;

March to May; pistillate inflorescence hairy 5-8 cm long;

acorn globose flattened, 0.7-1.3 cm high, 2-2.8 cm in diameter; apex flat or depressed;  several on a 4 cm long peduncle; slightly raised basal scar, 1-2 cm wide; enclosed 1/4 to 1/2 by cup; cup flat, 0.5-1 cm heigh, 2-3.5 cm in diameter, with bracts in 7-11 pubescent, entire or denticulate concentric rings; stylopodium persistent, greyish pubescent; maturing in 1 year;

not hardy; scattered in mountains forests;

–A. Camus : tome 1, p. 339, n° 69; – Sub-genus Cerris, Section Cyclobalanopsis; – Section Helferiana, sub-section Helferianae ( Menitsky ); – Closely related to Q.helferiana ; according to Hjelmquist 1968, only Q.helferiana, and not Q.kerrii , occurs in China; – For some Authors (Menitsky, Govaerts & Frodin), Q.kerrii is a synonym of Q.mespilifolia ; – Q.vestita Griff . 1848 (Itin. Pl. Khasyah Mts. 90) is a true species from India (Assam), Myanmar, Laos, may be from Thailand too, with problematic taxonomic status; – Hybrids with Q. austrocochinchinensis