水社柳Salix kusanoi (Hayata.) Schneid.
水社柳Salix kusanoi (Hayata.) Schneid.
5．水社柳（台湾植物志）图版27
Salix kusanoi (Hayata) Schneid. in Sarg. Pl. Wils. 3: 100. 1916, excl. specim. A. Henry no. 1404 et 1473; Kimura in Sci. Rep. Tohoku Univ. 4. Biol. 10 (3): 365. 1935; Li, Wood. Fl. Taiwan, 73. 1963; id. Fl. Taiwan 2: 34. 1976.——S. tetrasperma Roxb. var. kusanoi Hayata in Journ. Coll. Sci. Tokyo, 30 (1): 305. (Mat. Fl. Form.). 1911.——S. suishaensis Hayata, Icon. Pl. Form. 4: 65. 1914.——S. doii Hayata, 1. c. 5: 201. 1915; Kanehira, Form. Trees rev. ed. 75. 1936.——S. kusanoi (Hayata) Hayata, Gen. Ind. Fl. Ferm. 73. 1917. ——S. tetrasperma auct. non Roxb.: Burkill ex Forb. & Hemsl. in Journ. Linn. Soc. Bot. 26: 533. 1899, p. p.; Matsum. & Hayata in Journ. Coll. Sci. Univ. Tokyo 22: 395. 1906.
乔木，高3-6米，当年生小枝被灰色和棕褐色柔毛，一年生枝紫红黑色，无毛。芽卵状圆锥形，紫红色，近无毛。叶卵形或卵状椭圆形，中、下部最宽，长约9厘米，宽约4厘米，先端短渐尖至长渐尖，基部圆形或钝，或微心形，有的近耳形，上面草绿色，中脉上有褐色绢毛，下面色淡或稍苍白色，初被褐色绢毛，后除脉外无毛，侧脉16-17对，全缘；叶柄长。花近先叶开放或同时开放，稀叶后开放；雄花序粗壮，圆柱形，长约8(9)厘米，花自下部向上开放，疏花，有花序梗，具2-3小叶或脱落；有雄蕊5-6，花丝基部有短柔毛，比苞片长达1倍；苞片卵形或宽椭圆形，内面有短柔毛，外面毛少，具短缘毛；腺体2，背生和腹生，常分裂；雌花序有梗，长约3厘米，粗约1厘米；子房卵状圆锥形，长3-4毫米，有长柄，花柱近无，柱头冠状；苞片同雄花，比子房柄长1倍；花有背腺和腹腺，先端微凹或分裂。
产我国台湾省。生于河岸。模式标本采自台北。
《Flora of China》 Vol. 4 (1999)
Salix kusanoi (Hayata) C. K. Schneider
水社柳 shui she liu
Salix tetrasperma Roxburgh var. kusanoi Hayata, J. Coll. Sci. Imp. Univ. Tokyo 30(1): 305. 1911; Pleiarina kusanoi (Hayata) N. Chao & G. T. Gong; S. suishaensis Hayata.
Trees to 6 m tall. One-year-old branchlets purplish red-black, glabrous; juvenile branchlets gray and brown downy. Buds purplish red, ovoid-conical, subglabrous. Petiole long; leaf blade ovate or ovate-elliptic, ca. 9 × 4 cm, abaxially light or slightly pale, at first brown silky, glabrescent except along veins, adaxially grass green, brown silky along midvein, base rounded, obtuse, or subcordate, rarely subauriculate, margin entire, apex acute or acuminate; lateral veins 16 or 17 on each side of midvein. Flowering precocious or coetaneous, rarely serotinous. Male catkin cylindric, 8(-9) cm; peduncle with 2 or 3 leaflets or leaflets deciduous; bracts ovate or broadly elliptic, pubescent. Male flower: adaxial and abaxial glands usually 2-cleft; stamens 5 or 6; filaments pubescent at base. Female catkin ca. 3 × 1 cm, pedunculate; bracts as in male catkin. Female flower: glands adaxial and abaxial, retuse or lobed at apex; ovary ovoid-conical, 3-4 mm, long stipitate; style nearly absent; stigma crownlike.
* Riversides. Taiwan
别名：草野氏柳;
科名：杨柳科 Salicaceae
属名：柳属 Salix
5．水社柳（台湾植物志）图版27
Salix kusanoi (Hayata) Schneid. in Sarg. Pl. Wils. 3: 100. 1916, excl. specim. A. Henry no. 1404 et 1473; Kimura in Sci. Rep. Tohoku Univ. 4. Biol. 10 (3): 365. 1935; Li, Wood. Fl. Taiwan, 73. 1963; id. Fl. Taiwan 2: 34. 1976.——S. tetrasperma Roxb. var. kusanoi Hayata in Journ. Coll. Sci. Tokyo, 30 (1): 305. (Mat. Fl. Form.). 1911.——S. suishaensis Hayata, Icon. Pl. Form. 4: 65. 1914.——S. doii Hayata, 1. c. 5: 201. 1915; Kanehira, Form. Trees rev. ed. 75. 1936.——S. kusanoi (Hayata) Hayata, Gen. Ind. Fl. Ferm. 73. 1917. ——S. tetrasperma auct. non Roxb.: Burkill ex Forb. & Hemsl. in Journ. Linn. Soc. Bot. 26: 533. 1899, p. p.; Matsum. & Hayata in Journ. Coll. Sci. Univ. Tokyo 22: 395. 1906.
乔木，高3-6米，当年生小枝被灰色和棕褐色柔毛，一年生枝紫红黑色，无毛。芽卵状圆锥形，紫红色，近无毛。叶卵形或卵状椭圆形，中、下部最宽，长约9厘米，宽约4厘米，先端短渐尖至长渐尖，基部圆形或钝，或微心形，有的近耳形，上面草绿色，中脉上有褐色绢毛，下面色淡或稍苍白色，初被褐色绢毛，后除脉外无毛，侧脉16-17对，全缘；叶柄长。花近先叶开放或同时开放，稀叶后开放；雄花序粗壮，圆柱形，长约8(9)厘米，花自下部向上开放，疏花，有花序梗，具2-3小叶或脱落；有雄蕊5-6，花丝基部有短柔毛，比苞片长达1倍；苞片卵形或宽椭圆形，内面有短柔毛，外面毛少，具短缘毛；腺体2，背生和腹生，常分裂；雌花序有梗，长约3厘米，粗约1厘米；子房卵状圆锥形，长3-4毫米，有长柄，花柱近无，柱头冠状；苞片同雄花，比子房柄长1倍；花有背腺和腹腺，先端微凹或分裂。
产我国台湾省。生于河岸。模式标本采自台北。
《Flora of China》 Vol. 4 (1999)
Salix kusanoi (Hayata) C. K. Schneider
水社柳 shui she liu
Salix tetrasperma Roxburgh var. kusanoi Hayata, J. Coll. Sci. Imp. Univ. Tokyo 30(1): 305. 1911; Pleiarina kusanoi (Hayata) N. Chao & G. T. Gong; S. suishaensis Hayata.
Trees to 6 m tall. One-year-old branchlets purplish red-black, glabrous; juvenile branchlets gray and brown downy. Buds purplish red, ovoid-conical, subglabrous. Petiole long; leaf blade ovate or ovate-elliptic, ca. 9 × 4 cm, abaxially light or slightly pale, at first brown silky, glabrescent except along veins, adaxially grass green, brown silky along midvein, base rounded, obtuse, or subcordate, rarely subauriculate, margin entire, apex acute or acuminate; lateral veins 16 or 17 on each side of midvein. Flowering precocious or coetaneous, rarely serotinous. Male catkin cylindric, 8(-9) cm; peduncle with 2 or 3 leaflets or leaflets deciduous; bracts ovate or broadly elliptic, pubescent. Male flower: adaxial and abaxial glands usually 2-cleft; stamens 5 or 6; filaments pubescent at base. Female catkin ca. 3 × 1 cm, pedunculate; bracts as in male catkin. Female flower: glands adaxial and abaxial, retuse or lobed at apex; ovary ovoid-conical, 3-4 mm, long stipitate; style nearly absent; stigma crownlike.
* Riversides. Taiwan