褐叶青冈Cyclobalanopsis stewardiana (A. Camus) Y. C. Hsu et H. W. Jen
褐叶青冈Cyclobalanopsis stewardiana (A. Camus) Y. C. Hsu et H. W. Jen
66. 褐叶青冈 黔椆（中国高等植物图鉴）
Cyclobalanopsis stewardiana (A. Camus) Y. C. Hsu et H. W. Jen in Acta Bot. Yunnan. 1: 148. 1979; 贵州植物志1: 109. 1982; 中国树木志2: 2321. 1985. ——Quercus stewardiana A. Camus, Chenes 1: 273. 1936-38, Atlas 1. Pl. 10. f. 8-10. 1934; 中国高等植物图鉴, 补编1: 124. 1982.
《Flora of China》 Vol. 4 (1999)
Cyclobalanopsis stewardiana (A. Camus) Y. C. Hsu & H. W. Jen
褐叶青冈 he ye qing gang
Quercus stewardiana A. Camus, Chênes, Atlas 1: 12. 1934; Cyclobalanopsis stewardiana var. longicaudata Y. C. Hsu & al.
Trees to 12 m tall. Branchlets glabrous. Petiole 1.5-3 cm, glabrous; leaf blade elliptic-lanceolate to oblong-elliptic, 6-12 × 2-4 cm, sericeous and simple hairy when young, abaxially whitish (browning when dry) and sparsely hairy or glabrescent, adaxially dark green, base cuneate, margin apical 1/2 remotely shallowly serrate, apex acuminate to caudate; secondary veins 8-10 on each side of midvein, abaxially prominent, and adaxially inconspicuous; tertiary veins abaxially inconspicuous. Female inflorescences borne in axil of new shoots, solitary, ca. 2 cm; rachis and bracts brown tomentose. Cupule cupular, 6-8 mm × 1-1.5 cm, enclosing ca. 1/2 of nut, outside whitish pilose but glabrescent, inside grayish brown tomentose; bracts in 5-9 rings, loosely arranged, margin dentate. Nut broadly ovoid, 0.8-1.5 cm, glabrous; scar ca. 5 mm in diam., convex; stylopodium persistent, ca. 2 mm in diam. Fl. Jul, fr. Oct of following year.
* Mixed mesophytic forests on mountain tops and slopes; 1000-2800 m. Anhui, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Yunnan, Zhejiang
别名：黔椆;褐毛青冈;黔稠;黔汭;贵州青岗;贵州静冈;贵州青冈;黔桐;
科名：壳斗科 Fagaceae
属名：青冈属 Cyclobalanopsis
66. 褐叶青冈 黔椆（中国高等植物图鉴）
Cyclobalanopsis stewardiana (A. Camus) Y. C. Hsu et H. W. Jen in Acta Bot. Yunnan. 1: 148. 1979; 贵州植物志1: 109. 1982; 中国树木志2: 2321. 1985. ——Quercus stewardiana A. Camus, Chenes 1: 273. 1936-38, Atlas 1. Pl. 10. f. 8-10. 1934; 中国高等植物图鉴, 补编1: 124. 1982.
《Flora of China》 Vol. 4 (1999)
Cyclobalanopsis stewardiana (A. Camus) Y. C. Hsu & H. W. Jen
褐叶青冈 he ye qing gang
Quercus stewardiana A. Camus, Chênes, Atlas 1: 12. 1934; Cyclobalanopsis stewardiana var. longicaudata Y. C. Hsu & al.
Trees to 12 m tall. Branchlets glabrous. Petiole 1.5-3 cm, glabrous; leaf blade elliptic-lanceolate to oblong-elliptic, 6-12 × 2-4 cm, sericeous and simple hairy when young, abaxially whitish (browning when dry) and sparsely hairy or glabrescent, adaxially dark green, base cuneate, margin apical 1/2 remotely shallowly serrate, apex acuminate to caudate; secondary veins 8-10 on each side of midvein, abaxially prominent, and adaxially inconspicuous; tertiary veins abaxially inconspicuous. Female inflorescences borne in axil of new shoots, solitary, ca. 2 cm; rachis and bracts brown tomentose. Cupule cupular, 6-8 mm × 1-1.5 cm, enclosing ca. 1/2 of nut, outside whitish pilose but glabrescent, inside grayish brown tomentose; bracts in 5-9 rings, loosely arranged, margin dentate. Nut broadly ovoid, 0.8-1.5 cm, glabrous; scar ca. 5 mm in diam., convex; stylopodium persistent, ca. 2 mm in diam. Fl. Jul, fr. Oct of following year.
* Mixed mesophytic forests on mountain tops and slopes; 1000-2800 m. Anhui, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Sichuan, Yunnan, Zhejiang