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水榆花楸Sorbus alnifolia

时间:2018-07-01 09:34来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 水榆花楸 学名( Scientific Name ): Sorbus alnifolia (Sieb. et Zucc.) K. Koch 英文名( English Common Name ): 别名( Chinese Common Name ): 花楸 异名( Synonym ): Crataegus alnifolia Siebold et Zucc. Micro
中文名(Chinese Name):水榆花楸
学名(Scientific Name):Sorbus alnifolia (Sieb. et Zucc.) K. Koch
英文名(English Common Name):
别名(Chinese Common Name):花楸
异名(Synonym):Crataegus alnifolia Siebold et Zucc.  Micromeles alnifolia (Siebold et Zucc.) Koehne  Aria alnifolia (Siebold et Zucc.) Decne.  Pyrus alnifolia (Sieb. et Zucc.) Franch. et Sav.  Pyrus miyabei Sarg.  Micromeles tiliifolia Koehne
科属(Family & Genus):蔷薇科(Rosaceae)花楸属
形态特征(Description):乔木,高达20米;小枝圆柱形,具灰白色皮孔,幼时微具柔毛,二年生枝暗红褐色,老枝暗灰褐色,无毛;冬芽卵形,先端急尖,外具数枚暗红褐色无毛鳞片。叶片卵形至椭圆卵形,长5-10厘米,宽3-6厘米,先端短渐尖,基部宽楔形至圆形,边缘有不整齐的尖锐重锯齿,有时微浅裂,上下两面无毛或在下面的中脉和侧脉上微具短柔毛,侧脉6-10 (14) 对,直达叶边齿尖;叶柄长1.5-3厘米,无毛或微具稀疏柔毛。复伞房花序较疏松,具花6-25朵,总花梗和花梗具稀疏柔毛;花梗长6-12毫米;花直径10-14 (18) 毫米;萼筒钟状,外面无毛,内面近无毛;萼片三角形,先端急尖,外面无毛,内面密被白色绒毛;花瓣卵形或近圆形,长5-7毫米,宽3.5-6毫米,先端圆钝,白色;雄蕊20,短于花瓣;花柱2,基部或中部以下合生,光滑无毛,短于雄蕊。果实椭圆形或卵形,直径7-10毫米,长10-13毫米,红色或黄色,不具斑点或具极少数细小斑点,2室,萼片脱落后果实先端残留圆斑。花期5月,果期8-9月。
分布(Distribution):产东北、河北、河南、陕西、甘肃、山东、安徽、湖北、江西、浙江、四川,生于海拔500-2300米山坡、山沟或山顶混交林或灌木丛。朝鲜和日本也有分布。
用途(Use):树冠圆锥形,秋季叶片转变成猩红色,为美丽观赏树。木材供作器具、车辆及模型用,树皮可作染料,纤维供造纸原料。
引自中国植物志英文版:FOC Vol. 9 Page 164     
Sorbus alnifolia (Siebold & Zuccarini) K. Koch, Ann. Mus. Bot. Lugduno-Batavi. 1: 249. 1864.
水榆花楸 shui yu hua qiu| Rosaceae  | Sorbus
Trees to 20 m tall. Branchlets dark reddish brown when young, dark grayish brown when old, terete, puberulent when young, glabrous when old, with white lenticels; buds ovoid, 4–7 mm, apex acute; scales several, dark reddish brown, glabrous. Leaves simple; petiole 1.5–3 cm, glabrous or slightly puberulent; leaf blade ovate to elliptic-ovate or suborbicular, 5–10 × 3–6 cm, lateral veins 6–10(–14) pairs, nearly parallel and terminating in marginal teeth, raised abaxially, both surfaces glabrous or abaxially puberulent along veins, base broadly cuneate to rounded, margin irregularly sharply doubly serrate or lobed, apex shortly acuminate. Compound corymbs terminal, 4–8 cm in diam., loosely 6–25-flowered; rachis and pedicels sparsely pubescent. Pedicel 6–12 mm. Flowers 1–1.4(–1.8) cm in diam. Hypanthium campanulate, abaxially glabrous. Sepals triangular or triangular-ovate, apex acute. Petals white, suborbicular to oblong-ovate, 5–7 × 3.5–6 mm, base clawed, apex obtuse. Stamens 20; filaments white, slightly shorter than petals. Ovary 2-loculed; styles 2, not exceeding stamens, glabrous, connate basally. Fruit red, oblong, ovoid-oblong, or globose, 1–1.4 cm × 7–10 mm, without or with few minute lenticels, sepals caducous, leaving a small annular scar; seeds pale brownish orange, linear-oblong. Fl. Apr–May, fr. Aug–Sep.
Slopes, gullies, mixed forests, thickets; 500--2300 m. Anhui, Fujian, Gansu, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Zhejiang [Japan, Korea].
 




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