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东京樱花 Cerasus yedoensis

时间:2013-11-07 11:20来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 东京樱花 学名( Scientific Name ): Cerasus yedoensis (Matsum.) T.T. Yu C.L. Li 英文名( English Common Name ): 别名( Chinese Common Name ): 日本樱花、樱花 异名( Synonym ): Prunus paracerasus Koehne Prun
中文名(Chinese Name):东京樱花
学名(Scientific Name):Cerasus yedoensis (Matsum.) T.T. Yu & C.L. Li
英文名(English Common Name):
别名(Chinese Common Name):日本樱花、樱花
异名(Synonym):Prunus paracerasus Koehne  Prunus yedoensis var. nudiflora Koehne  Prunus yedoensis Matsum.
科属(Family & Genus):蔷薇科(Rosaceae)樱属
形态特征(Description):乔木,高4-16米,树皮灰色。小枝淡紫褐色,无毛,嫩枝绿色,被疏柔毛。冬芽卵圆形,无毛。叶片椭圆卵形或倒卵形,长5-12厘米,宽2.5-7厘米,先端渐尖或骤尾尖,基部圆形,稀楔形,边有尖锐重锯齿,齿端渐尖,有小腺体,上面深绿色,无毛,下面淡绿色,沿脉被稀疏柔毛,有侧脉7-10对;叶柄长1.3-1.5厘米,密被柔毛,顶端有1-2个腺体或有时无腺体;托叶披针形,有羽裂腺齿,被柔毛,早落。花序伞形总状,总梗极短,有花3-4朵,先叶开放,花直径3-3.5厘米;总苞片褐色,椭圆卵形,长6-7毫米,宽4-5毫米,两面被疏柔毛;苞片褐色,匙状长圆形,长约5毫米,宽2-3毫米,边有腺体;花梗长2-2.5厘米,被短柔毛;萼筒管状,长7-8毫米,宽约3毫米,被疏柔毛;萼片三角状长卵形,长约5毫米,先端渐尖,边有腺齿;花瓣白色或粉红色,椭圆卵形,先端下凹,全缘二裂;雄蕊约32枚,短于花瓣;花柱基部有疏柔毛。核果近球形,直径0.7-1厘米,黑色,核表面略具棱纹。花期4月,果期5月。2n=16。
分布(Distribution):原产日本,我国广为栽培。
用途(Use):园艺品种很多,供观赏用。
引自中国植物志英文版:FOC Vol. 9 Page 414     
Cerasus yedoensis (Matsumura) A. V. Vassiljeva, Trans. Sukhumi Bot. Gard., Fasc. 10: 124. 1957.
东京樱花 dong jing ying hua| Rosaceae  | Cerasus
Prunus yedoensis Matsumura, Bot. Mag. (Tokyo) 15: 100. 1901; P. paracerasus Koehne; P. yedoensis var. nudiflora Koehne.
Trees 4–16 m tall. Bark gray. Branchlets pale purplish brown, glabrous; young branchlets green, pilose. Winter buds ovoid, glabrous. Stipules lanceolate, pubescent. Petiole 1-3–1.5 cm, densely pubescent, with or withoug 1 or 2 glands at apex; leaf blade elliptic to obovate, 5–12 × 2.5–7 cm, abaxially pale green and pilose on veins, adaxially dark green, glabrous, base rounded to rarely cuneate, margin sharply glandular serrate, apex acuminate to cuspidate; secondary veins 7–10 on each side of midvein. Inflorescences umbellate-racemose, 3- or 4-flowered; involucral bracts brown, elliptic-ovate, 6–7 × 4–5 mm, pilose on both surfaces; peduncle very short; bracts brown, spatulate-oblong, ca. 5 × 2–3 mm, margin glandular. Flowers opening before leaves, 3–3.5 cm in diam. Pedicel 2–2.5 cm, pubescent. Hypanthium tubular, 7–8 × ca. 3 mm, outside pilose, margin glandular serrate, apex emarginate or 2-lobed. Stamens ca. 32, shorter than petals. Style base pilose. Drupe black, subglobose, 0.7–1 cm in diam.; endocarp slightly sculptured. Fl. Apr, fr. May. 2n = 16.
Cultivated mainly in Beijing, Jiangsu (Nanjing Shi), Jiangxi (Nanchang Shi), and Shandong (Qingdao Shi) [native to Japan and Korea (Cheju Island)].
 




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