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FOC | Family List | FOC Vol. 4 | Fagaceae | Cyclobalanopsis

39. Cyclobalanopsis kouangsiensis (A. Camus) Y. C. Hsu & H. W. Jen, Acta Phytotax. Sin. 14(2): 78. 1976.

广西青冈 guang xi qing gang

Quercus kouangsiensis A. Camus, Bull. Soc. Bot. France 84: 176. 1937; Q. nemoralis Chun.

Trees to 15 m tall. Branchlets sulcate, densely tawny velutinous. Petiole 1.5-3 cm, densely light brown tomentose; leaf blade oblong-elliptic to lanceolate, 12-20 × 3.5-5.5 cm, leathery, abaxially densely pale grayish brown stellate tomentose, base cuneate and usually oblique, margin apically serrate, apex acuminate; midvein and secondary veins abaxially prominent but adaxially flat; secondary veins 10-14 on each side of midvein; tertiary veins abaxially slender, conspicuous. Female inflorescence ca. 1.5 cm; rachis brown tomentose. Cupule campanulate, ca. 2.5 × 2.5-3.4 cm, enclosing more than 1/2 of nut, outside orangish brown tomentose, inside feltlike orangish tomentose, wall ca. 1.5 mm thick; bracts in 8 or 9 rings, margin dentate. Nut cylindric-ellipsoid, ca. 5 × 2.5 cm, tomentose; scar ca. 1.5 cm in diam., slightly convex; stylopodium umbonate, ca. 3 mm. Fr. Oct.

* Wet, broad-leaved evergreen forests in mountains; 200-2000 m. Guangdong, Guangxi, Hunan, Yunnan


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