小勾儿茶Berchemiella wilsonii (Schneid.) Nakai
小勾儿茶Berchemiella wilsonii (Schneid.) Nakai
1. 小勾儿茶（新拟）
Berchemiella wilsonii (Schneid.) Nakai in Bot. Mag. Tokyo 37: 31. 1923. ——Chaydaia wilsonii Schneid. in Sarg. Pl. Wils. 2: 221. 1914. ——Berchemia wilsonii (Schneid.) Koidz. in Bot. Mag. Tokyo 39: 21. 1925.
落叶灌木，高3-6米；小枝无毛，褐色，具密而明显的皮孔，有纵裂纹，老枝灰色。叶纸质，互生，椭圆形，长7-10厘米，宽3-5厘米，顶端钝，有短突尖，基部圆形，不对称，上面绿色，无光泽，无毛，下面灰白色，无乳头状突起，仅脉腋微被髯毛，侧脉每边8-10条；叶柄长4-5毫米，无毛，上面有沟槽；托叶短，三角形，背部合生而包裹芽。顶生聚伞总状花序，长3.5厘米，无毛；花芽圆球形，直径1.5毫米，短于花梗；花淡绿色，构造与勾儿茶属Berchemia相似，但萼片三角状卵形，内面中肋中部具喙状突起，花瓣宽倒卵形，顶端微凹，基部具短爪，与萼片近等长，子房基部为花盘所包围，花柱短，2浅裂。果未见。花期7月。
产湖北兴山。生海拔1300米的林中。模式标本采自兴山。
C. K. Schneider (1914)依据采自湖北兴山的标本(Wilson 3388)发表了 Chaydaia wilsoni Schneid.，后为 Nakai 移于本属, 但迄今未见到标本。上述的描述是根据原始记载和模式标本照片写成。▽此外，安徽歙县柏子山的标本叶形及质地与日本产的日本小勾儿茶 B. berchemiaefolia (Makino) Nakai 极为近似，但叶柄长仅3-4毫米，与本种相同。由于该标本不完全，暂时难以确定，有待进一步的研究。
《Flora of China》 Vol. 12 (2007)
Berchemiella wilsonii (C. K. Schneider) Nakai
小勾儿茶 xiao gou er cha
Shrubs deciduous, 3-6 m tall. Branchlets brown, glabrous, with dense, conspicuous lenticels and longitudinal slits; old branches gray. Stipules broadly triangular, abaxially connate, surrounding buds; petiole 4-5 mm, glabrous or pilose; leaf blade adaxially gray-white, elliptic, 7-10 × 3-5 cm, papery, abaxially densely pubescent or with barbate vein axils, adaxially glabrous, lateral veins 8-10 pairs, base rounded, asymmetrical, apex obtuse, mucronulate. Inflorescences ca. 3.5 cm, glabrous. Flowers greenish, glabrous, in terminal cymose racemes or few in axillary cymes; flower buds globose, ca. 1.5 mm in diam., shorter than pedicels. Calyx tube cup-shaped; lobes triangular, adaxially slightly keeled and with minute basal beak. Petals broadly obovate, very short, ca. 1 mm, apex emarginate, hooded. Disk thin, lining calyx tube, marginally slightly thickened and prominent. Ovary globose, basally surrounded but not immersed into disk; style cylindric, short, undivided; stigma capitate, distinctly 2- or 3-lobed. Fruit red when young, nearly black at maturity, cylindric to slightly obovoid. Fl. Jul, fr. Aug-Sept.
● Forests, valley forests; 500-1500 m. Anhui, W Hubei, Zhejiang.
别名：后河小勾儿茶;
科名：鼠李科 Rhamnaceae
属名：小勾儿茶属 Berchemiella
1. 小勾儿茶（新拟）
Berchemiella wilsonii (Schneid.) Nakai in Bot. Mag. Tokyo 37: 31. 1923. ——Chaydaia wilsonii Schneid. in Sarg. Pl. Wils. 2: 221. 1914. ——Berchemia wilsonii (Schneid.) Koidz. in Bot. Mag. Tokyo 39: 21. 1925.
落叶灌木，高3-6米；小枝无毛，褐色，具密而明显的皮孔，有纵裂纹，老枝灰色。叶纸质，互生，椭圆形，长7-10厘米，宽3-5厘米，顶端钝，有短突尖，基部圆形，不对称，上面绿色，无光泽，无毛，下面灰白色，无乳头状突起，仅脉腋微被髯毛，侧脉每边8-10条；叶柄长4-5毫米，无毛，上面有沟槽；托叶短，三角形，背部合生而包裹芽。顶生聚伞总状花序，长3.5厘米，无毛；花芽圆球形，直径1.5毫米，短于花梗；花淡绿色，构造与勾儿茶属Berchemia相似，但萼片三角状卵形，内面中肋中部具喙状突起，花瓣宽倒卵形，顶端微凹，基部具短爪，与萼片近等长，子房基部为花盘所包围，花柱短，2浅裂。果未见。花期7月。
产湖北兴山。生海拔1300米的林中。模式标本采自兴山。
C. K. Schneider (1914)依据采自湖北兴山的标本(Wilson 3388)发表了 Chaydaia wilsoni Schneid.，后为 Nakai 移于本属, 但迄今未见到标本。上述的描述是根据原始记载和模式标本照片写成。▽此外，安徽歙县柏子山的标本叶形及质地与日本产的日本小勾儿茶 B. berchemiaefolia (Makino) Nakai 极为近似，但叶柄长仅3-4毫米，与本种相同。由于该标本不完全，暂时难以确定，有待进一步的研究。
《Flora of China》 Vol. 12 (2007)
Berchemiella wilsonii (C. K. Schneider) Nakai
小勾儿茶 xiao gou er cha
Shrubs deciduous, 3-6 m tall. Branchlets brown, glabrous, with dense, conspicuous lenticels and longitudinal slits; old branches gray. Stipules broadly triangular, abaxially connate, surrounding buds; petiole 4-5 mm, glabrous or pilose; leaf blade adaxially gray-white, elliptic, 7-10 × 3-5 cm, papery, abaxially densely pubescent or with barbate vein axils, adaxially glabrous, lateral veins 8-10 pairs, base rounded, asymmetrical, apex obtuse, mucronulate. Inflorescences ca. 3.5 cm, glabrous. Flowers greenish, glabrous, in terminal cymose racemes or few in axillary cymes; flower buds globose, ca. 1.5 mm in diam., shorter than pedicels. Calyx tube cup-shaped; lobes triangular, adaxially slightly keeled and with minute basal beak. Petals broadly obovate, very short, ca. 1 mm, apex emarginate, hooded. Disk thin, lining calyx tube, marginally slightly thickened and prominent. Ovary globose, basally surrounded but not immersed into disk; style cylindric, short, undivided; stigma capitate, distinctly 2- or 3-lobed. Fruit red when young, nearly black at maturity, cylindric to slightly obovoid. Fl. Jul, fr. Aug-Sept.
● Forests, valley forests; 500-1500 m. Anhui, W Hubei, Zhejiang.