显脉金花茶 xian mai jin hua cha

Camellia chrysantha (Hu) Tuyama var. macrophylla S. L. Mo & S. Z. Huang; C. euphlebia var. macrophylla (S. L. Mo & S. Z. Huang) C. X. Ye & J. Y. Liang.

Shrubs or trees, 2-5 m tall. Young branches grayish brown; current year branchlets purplish brown, thick, glabrous. Petiole 0.9-1.3 cm, stout, glabrous, adaxially grooved; leaf blade elliptic to broadly elliptic (11-)14-20(-25) × (4.5-)5-8(-15) cm, leathery, abaxially pale green, brown glandular punctate, and becoming pale brown when dry, adaxially dark green and slightly shiny, both surfaces glabrous, midvein abaxially elevated and adaxially impressed, secondary veins 11-13 on each side of midvein, abaxially raised, and adaxially slightly impressed, base obtuse to subrounded, margin serrulate, apex abruptly shortly caudate to caudate and with a blunt tip. Flowers axillary or subterminal, solitary or paired. Pedicel ca. 5(-7) mm, thick; bracteoles (7 or)8, appressed and covering pedicel, semiorbicular, 1-3 × 3-5 mm, leathery, outside green and glabrous, inside brown and white sericeous, margin ciliolate. Sepals 5, semiorbicular to broadly ovate, 4-5 × 5-7 mm, leathery, outside green and glabrous, inside brown and white sericeous, margin ciliolate. Petals 7-9, golden yellow, ± fleshy; outer 2 or 3 petals sepaloid, suborbicular, 1-1.5 cm, concave; inner petals broadly obovate to obovate-elliptic, 2.5-4 × 2-2.5 cm, glabrous, basally connate for 5-10 mm and adnate to androecium, apex rounded. Stamens numerous, 2-3.5 cm, glabrous; outer filament whorl basally connate for 1-1.5 cm. Ovary ovoid, ca. 2.5 mm in diam., glabrous, 3-loculed; styles 3, distinct, 2-3.5 cm. Capsule oblate, 3-coccal, 2-3 × 3.5-6 cm, 3-loculed with 1 or 2 seeds per locule, apex sunken; pericarp 2-3 mm thick when dry. Seeds brown, globose or hemispherical, 1.5-2 cm in diam., glabrous. Fl. Dec, fr. Oct. 2n = 30.

Evergreen broad-leaved forests along streams; 100-500 m. Guangxi (Fangcheng) [N Vietnam].