凹脉金花茶Camellia impressinervis Chang et S. Y. Liang
凹脉金花茶Camellia impressinervis Chang et S. Y. Liang
130. 凹脉金花茶
Camellia impressinervis Chang et S. Y. Liang in Acta Sci. Nat. Univ. Sunyatseni, 18 (3): 72. 1979; chang, l. c. 30 (2): 81. 1991.
灌木，高3米，嫩枝有短粗毛，老枝变秃。叶革质，椭圆形，长12-22厘米，宽5.5-8.5厘米，先端急尖，基部阔楔形或窄而圆，上面深绿色，干后橄榄绿色，有光泽，下面黄褐色，被柔毛，至少在中脉及侧脉上有毛，有黑腺点，侧脉10-14对，与中脉在上面凹下，在下面强烈突起，边缘有细锯齿，齿刻相隔2-3毫米，叶柄长1厘米，上面有沟，无毛，下面有毛。花1-2朵腋生，花柄粗大，长6-7毫米，无毛；苞片5片，新月形，散生于花柄上，无毛，宿存；萼片5，半圆形至圆形，长4-8毫米，无毛，宿存，花瓣12片，无毛。雄蕊近离生，花丝无毛；子房无毛，花柱2-3条，无毛。蒴果扁圆形，2-3室，室间凹入成沟状2-3条，三角扁球形或哑铃形，高1.8厘米，宽3厘米，每室有种子1-2粒，果爿厚1-1.5毫米，有宿存苞片及萼片；种子球形，宽1.5厘米。花期1月。
模式标本采自广西龙津的石灰岩山地常绿林。
本种和金花茶C. nitidissima Chi接近，但嫩枝有毛，叶阔椭圆形，宽达8.5厘米，背面有毛，侧脉及网脉强烈凹下，侧脉多达14对，花瓣12片，果爿较薄，厚1-1.5毫米，种子每室1-2个。
《Flora of China》 Vol. 12 (2007)
Camellia impressinervis Hung T. Chang & S. Ye Liang
凹脉金花茶 ao mai jin hua cha
Shrubs or trees, 1.5-5 m tall. Young branches grayish brown, glabrous; current year branchlets purplish brown, yellow pubescent; terminal buds oblong, large, glabrous. Petiole ca. 1 cm, pubescent, adaxially grooved; leaf blade elliptic to oblong-elliptic, 12-18(-22) × 3-8.5 cm, leathery, abaxially pale green, reddish brown glandular punctate, and sparsely pubescent, adaxially dark green, shiny, and glabrous, midvein abaxially elevated and adaxially channeled, secondary veins 9-11 on each side of midvein, abaxially elevated, and adaxially impressed, base rounded to obtuse, margin serrulate, apex abruptly shortly caudate to caudate. Flowers axillary, solitary, ca. 5 cm in diam. Pedicel ca. 5 mm; bracteoles 5 or 6, ± covering pedicel, lunate, 1-2.5 mm, glabrous, margin ciliolate. Sepals 5, ovate to broadly ovate, 6-10 mm, glabrous, margin ciliolate. Petals 11 or 12, yellow; outer 4 or 5 petals obovate to obovate-elliptic, 1.3-2 × 0.9-1.5 cm, nearly distinct; inner petals obovate, ca. 3 × 1.5-1.8 cm, basally connate for 4-5 mm, apex rounded. Stamens ca. 2 cm, glabrous; outer filament whorl basally connate into a ca. 5 mm tube. Ovary ovoid, ca. 2 mm in diam., glabrous, 3-loculed; styles 3, distinct, 2-2.3 cm. Capsule oblate, 2-coccal, ca. 3 cm in diam., glabrous; pericarp 1-1.5 mm thick. Seeds brown, pubescent. Fl. Jan-Mar, fr. Oct. 2n = 30*.
● Evergreen broad-leaved forests on calcareous hills; 100-500 m. Guangxi (Longzhou).
科名：山茶科 Theaceae
属名：山茶属 Camellia
130. 凹脉金花茶
Camellia impressinervis Chang et S. Y. Liang in Acta Sci. Nat. Univ. Sunyatseni, 18 (3): 72. 1979; chang, l. c. 30 (2): 81. 1991.
灌木，高3米，嫩枝有短粗毛，老枝变秃。叶革质，椭圆形，长12-22厘米，宽5.5-8.5厘米，先端急尖，基部阔楔形或窄而圆，上面深绿色，干后橄榄绿色，有光泽，下面黄褐色，被柔毛，至少在中脉及侧脉上有毛，有黑腺点，侧脉10-14对，与中脉在上面凹下，在下面强烈突起，边缘有细锯齿，齿刻相隔2-3毫米，叶柄长1厘米，上面有沟，无毛，下面有毛。花1-2朵腋生，花柄粗大，长6-7毫米，无毛；苞片5片，新月形，散生于花柄上，无毛，宿存；萼片5，半圆形至圆形，长4-8毫米，无毛，宿存，花瓣12片，无毛。雄蕊近离生，花丝无毛；子房无毛，花柱2-3条，无毛。蒴果扁圆形，2-3室，室间凹入成沟状2-3条，三角扁球形或哑铃形，高1.8厘米，宽3厘米，每室有种子1-2粒，果爿厚1-1.5毫米，有宿存苞片及萼片；种子球形，宽1.5厘米。花期1月。
模式标本采自广西龙津的石灰岩山地常绿林。
本种和金花茶C. nitidissima Chi接近，但嫩枝有毛，叶阔椭圆形，宽达8.5厘米，背面有毛，侧脉及网脉强烈凹下，侧脉多达14对，花瓣12片，果爿较薄，厚1-1.5毫米，种子每室1-2个。
《Flora of China》 Vol. 12 (2007)
Camellia impressinervis Hung T. Chang & S. Ye Liang
凹脉金花茶 ao mai jin hua cha
Shrubs or trees, 1.5-5 m tall. Young branches grayish brown, glabrous; current year branchlets purplish brown, yellow pubescent; terminal buds oblong, large, glabrous. Petiole ca. 1 cm, pubescent, adaxially grooved; leaf blade elliptic to oblong-elliptic, 12-18(-22) × 3-8.5 cm, leathery, abaxially pale green, reddish brown glandular punctate, and sparsely pubescent, adaxially dark green, shiny, and glabrous, midvein abaxially elevated and adaxially channeled, secondary veins 9-11 on each side of midvein, abaxially elevated, and adaxially impressed, base rounded to obtuse, margin serrulate, apex abruptly shortly caudate to caudate. Flowers axillary, solitary, ca. 5 cm in diam. Pedicel ca. 5 mm; bracteoles 5 or 6, ± covering pedicel, lunate, 1-2.5 mm, glabrous, margin ciliolate. Sepals 5, ovate to broadly ovate, 6-10 mm, glabrous, margin ciliolate. Petals 11 or 12, yellow; outer 4 or 5 petals obovate to obovate-elliptic, 1.3-2 × 0.9-1.5 cm, nearly distinct; inner petals obovate, ca. 3 × 1.5-1.8 cm, basally connate for 4-5 mm, apex rounded. Stamens ca. 2 cm, glabrous; outer filament whorl basally connate into a ca. 5 mm tube. Ovary ovoid, ca. 2 mm in diam., glabrous, 3-loculed; styles 3, distinct, 2-2.3 cm. Capsule oblate, 2-coccal, ca. 3 cm in diam., glabrous; pericarp 1-1.5 mm thick. Seeds brown, pubescent. Fl. Jan-Mar, fr. Oct. 2n = 30*.
● Evergreen broad-leaved forests on calcareous hills; 100-500 m. Guangxi (Longzhou).
