Vasilis Teodoridis:
Fagaceae | Castanopsis
38. Castanopsis jucunda Hance; J. Bot. 22: 230. 1884.
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Castanopsis formosana (Skan) Hayata; C. tribuloides (Smith) A. de Candolle var. formosana Skan.
Trees 10-26 m tall; 1st-year branchlets and leaf blades adaxially brownish black when dry; bud scales; branchlets; petiole of young leaf; mature leaf blades abaxially; and rachis of inflorescences sparsely covered with glabrescent; reddish brown; waxy scalelike trichomes. Petiole 1-2.5 cm; leaf blade ovate; ovate-elliptic; or oblong; sometimes obovate to obovate-elliptic; (4-)10-18 x (2-)4-8 cm; base rounded to broadly cuneate and inaequilateral or symmetric; margin at least from middle to apex serrate or rarely undulate; apex acute to acuminate; midvein adaxially impressed; secondary veins (5-)8-11 on each side of midvein. Female inflorescences axillary; solitary. Infructescences 10-15 cm. Cupule subglobose; 2.5-3.5 cm in diam.; splitting into 3-5 segments; outside and bracts pubescent and with grayish brown; lamellate; waxy scalelike trichomes especially when young; wall 0.5-1(-1.5) mm thick; bracts spinelike; 6-10 mm; free but a few in bundles; sometimes transversely united to discontinuous rings. Nut broadly conical to ovoid; 1-2 x 1-1.5 cm; glabrous or glabrescent; scar basal; 1-1.2(-1.5) cm in diam. Fl. Apr-May; fr. Aug-Oct of following year.
Broad-leaved evergreen forests; below 1500 m. Anhui; Fujian; Guangdong; Guangxi; Guizhou; Hainan; Hubei; Hunan; Jiangsu; Jiangxi; E to SC Taiwan; Yunnan; Zhejiang [Vietnam]