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40b. Lithocarpus corneus var. zonatus C. C. Huang & Y. T. Chang, Guihaia. 8: 14. 1988.
环鳞烟斗柯 huan lin yan dou ke
Description from Flora of China
Lithocarpus hemisphaericus (Drake) Barnett; Pasania hemisphaerica (Drake) Hickel & A. Camus; Quercus hemisphaerica Drake (1890) not W. Bartram ex Willdenow (1805); Synaedrys hemisphaerica (Drake) Koidzumi.
Petiole 2-4.5 cm; leaf blade lanceolate to narrowly oblong, variable in size, large blades ca. 20 × 6 cm, small blades ca. 7 × 2 cm, sparsely pubescent on midvein or sometimes abaxially at axils of veins. Cupule 3.5-4.5 × 4-5 cm. Nut with appressed minute hairs, glabrescent, apex flat but with center slightly impressed, wall rigidly horny and 2-4 × thicker than wall of cupule.
Guangdong, Guangxi [NE Vietnam]
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