银叶柳Salix chienii Cheng
银叶柳Salix chienii Cheng
32.银叶柳（中国高等植物图鉴）图版37：1-7
Salix chienii Cheng in Contr. Biol. Lab. Sci. Soc. China Bot. 9 (1): 59. f. 4. 1933 et Bot. 9 (3): 189. 1934; Hao in Fedde, Rep. Beih. 93, 115. 1936; 中国高等植物图鉴, 1: 363. 图725. 1972.——S. atopantha Schneid. var. glabra Hao, 1. c. 70. 1936.
灌木或小乔木，高可达12米。树干通常弯曲，树皮暗褐灰色，纵浅裂；一年生枝带绿色，有绒毛，后紫褐色，近无毛。芽先端钝头，有短柔毛。叶长椭圆形，披针形或倒披针形，长2-3.5(5.5)厘米，宽5-11(13)毫米，先端急尖或钝尖，基部阔楔形或近圆形，幼叶两面有绢状柔毛，成叶上面绿色，无毛或有疏毛，下面苍白色，有绢状毛，稀近无毛，侧脉8-12对，边缘具细腺锯齿，叶柄短，长约1毫米，有绢状毛。花序与叶同时开放或稍先叶开放；雄花序圆柱状，长1.5-2厘米，花序梗短，梗长3-6毫米，基部有3-7小叶，轴有长毛；雄蕊2,花丝基部合生，基部有毛，花药黄色；苞片倒卵形，先端近圆形或钝头，两面有长毛；腺体2，背生和腹生；雌花序长1.2-1.8厘米，有短梗，长2-5毫米，基部有3-5小叶，轴有毛；子房卵形，长约2毫米，无柄，无毛，花柱短而明显，柱头2裂，苞片卵形，先端圆形或钝头，两面无毛，有缘毛；腺体1，腹生。果序长达2-4厘米；蒴果卵状长圆形，长约3毫米。花期4月，果期5月。
产浙江、江西、江苏、安徽、湖北、湖南。生于溪流两岸的灌木丛中，海拔500-600米。模式标本采自浙江天目山。
《Flora of China》 Vol. 4 (1999)
Salix chienii W. C. Cheng
银叶柳 yin ye liu
Shrubs or trees to 12 m tall; bark dull, brownish gray. Juvenile branchlets light green, tomentose, becoming purplish brown, subglabrescent. Buds pubescent, apex obtuse. Petiole ca. 1 mm, sericeous; leaf blade long elliptic, lanceolate, or oblanceolate, 2-3.5(-5.5) × 0.5-1.1(-1.3) cm, abaxially pale, sericeous, rarely subglabrous, adaxially green, glabrous or subglabrous, both surfaces silky downy when young, base broadly cuneate or suborbicular, margin glandular serrulate, apex acute or obtuse; lateral veins 8-12 on each side of midvein. Male catkin cylindric, 1.5-2 cm; peduncle 3-6 mm, with 3-7 leaflets; bracts obovate, long pubescent, apex subrounded or obtuse. Male flower: stamens 2, connate and pilose at base; anthers yellow. Female catkin 1.2-1.8 cm, to 2-4 cm in fruit; peduncle short, with 3-5 leaflets at base; bracts ovate, ciliate, both surfaces glabrous, base obtuse or rounded. Female flower: gland adaxial; ovary ovoid, ca. 2 mm, glabrous, sessile; style conspicuous; stigma 2-lobed. Capsule ovoid-oblong, ca. 3 mm. Fl. Apr, fr. May.
* Along streams, thickets; 500-600 m. Anhui, Fujian, Hubei, Hunan, Jiangsu, Jiangxi, Zhejiang.
别名：水里起;钱氏柳;水柳;小柳;
科名：杨柳科 Salicaceae
属名：柳属 Salix
32.银叶柳（中国高等植物图鉴）图版37：1-7
Salix chienii Cheng in Contr. Biol. Lab. Sci. Soc. China Bot. 9 (1): 59. f. 4. 1933 et Bot. 9 (3): 189. 1934; Hao in Fedde, Rep. Beih. 93, 115. 1936; 中国高等植物图鉴, 1: 363. 图725. 1972.——S. atopantha Schneid. var. glabra Hao, 1. c. 70. 1936.
灌木或小乔木，高可达12米。树干通常弯曲，树皮暗褐灰色，纵浅裂；一年生枝带绿色，有绒毛，后紫褐色，近无毛。芽先端钝头，有短柔毛。叶长椭圆形，披针形或倒披针形，长2-3.5(5.5)厘米，宽5-11(13)毫米，先端急尖或钝尖，基部阔楔形或近圆形，幼叶两面有绢状柔毛，成叶上面绿色，无毛或有疏毛，下面苍白色，有绢状毛，稀近无毛，侧脉8-12对，边缘具细腺锯齿，叶柄短，长约1毫米，有绢状毛。花序与叶同时开放或稍先叶开放；雄花序圆柱状，长1.5-2厘米，花序梗短，梗长3-6毫米，基部有3-7小叶，轴有长毛；雄蕊2,花丝基部合生，基部有毛，花药黄色；苞片倒卵形，先端近圆形或钝头，两面有长毛；腺体2，背生和腹生；雌花序长1.2-1.8厘米，有短梗，长2-5毫米，基部有3-5小叶，轴有毛；子房卵形，长约2毫米，无柄，无毛，花柱短而明显，柱头2裂，苞片卵形，先端圆形或钝头，两面无毛，有缘毛；腺体1，腹生。果序长达2-4厘米；蒴果卵状长圆形，长约3毫米。花期4月，果期5月。
产浙江、江西、江苏、安徽、湖北、湖南。生于溪流两岸的灌木丛中，海拔500-600米。模式标本采自浙江天目山。
《Flora of China》 Vol. 4 (1999)
Salix chienii W. C. Cheng
银叶柳 yin ye liu
Shrubs or trees to 12 m tall; bark dull, brownish gray. Juvenile branchlets light green, tomentose, becoming purplish brown, subglabrescent. Buds pubescent, apex obtuse. Petiole ca. 1 mm, sericeous; leaf blade long elliptic, lanceolate, or oblanceolate, 2-3.5(-5.5) × 0.5-1.1(-1.3) cm, abaxially pale, sericeous, rarely subglabrous, adaxially green, glabrous or subglabrous, both surfaces silky downy when young, base broadly cuneate or suborbicular, margin glandular serrulate, apex acute or obtuse; lateral veins 8-12 on each side of midvein. Male catkin cylindric, 1.5-2 cm; peduncle 3-6 mm, with 3-7 leaflets; bracts obovate, long pubescent, apex subrounded or obtuse. Male flower: stamens 2, connate and pilose at base; anthers yellow. Female catkin 1.2-1.8 cm, to 2-4 cm in fruit; peduncle short, with 3-5 leaflets at base; bracts ovate, ciliate, both surfaces glabrous, base obtuse or rounded. Female flower: gland adaxial; ovary ovoid, ca. 2 mm, glabrous, sessile; style conspicuous; stigma 2-lobed. Capsule ovoid-oblong, ca. 3 mm. Fl. Apr, fr. May.
* Along streams, thickets; 500-600 m. Anhui, Fujian, Hubei, Hunan, Jiangsu, Jiangxi, Zhejiang.