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小叶栒子 Cotoneaster microphyllus

时间:2013-11-06 13:45来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 小叶栒子 学名( Scientific Name ): Cotoneaster microphyllus Wall. ex Lindl. 英文名( English Common Name ): 别名( Chinese Common Name ): 铺地蜈蚣 异名( Synonym ): Cotoneaster buxifolius f. melanotrichus
中文名(Chinese Name):小叶栒子
学名(Scientific Name):Cotoneaster microphyllus Wall. ex Lindl.
英文名(English Common Name):
别名(Chinese Common Name):铺地蜈蚣
异名(Synonym):Cotoneaster buxifolius f. melanotrichus Franch.  Cotoneaster microphyllus var. melanotrichus (Franch.) Rehder  Cotoneaster microphyllus f. melanotrichus (Franch.) Hand.-Mazz.  Cotoneaster cochleatus f. melanotrichus (Franch.) G. Klotz  Cotoneaster melanotrichus (Franch.) G. Klotz  Cotoneaster elatus G. Klotz
科属(Family & Genus):蔷薇科(Rosaceae)栒子属
形态特征(Description):常绿矮生灌木,高达1米;枝条开展,小枝圆柱形,红褐色至黑褐色,幼时具黄色柔毛,逐渐脱落。叶片厚革质,倒卵形至长圆倒卵形,长4-10毫米,宽3.5-7毫米,先端圆钝,稀微凹或急尖,基部宽楔形,上面无毛或具稀疏柔毛,下面被带灰白色短柔毛,叶边反卷;叶柄长1-2毫米,有短柔毛;托叶细小,早落。花通常单生,稀2-3朵,直径约1厘米,花梗甚短;萼筒钟状,外面有稀疏短柔毛,内面无毛;萼片卵状三角形,先端钝,外面稍具短柔毛,内面无毛或仅先端边缘上有少数柔毛;花瓣平展,近圆形,长与宽各约4毫米,先端钝,白色;雄蕊15-20,短于花瓣;花柱2,离生,稍短于雄蕊;子房先端有短柔毛。果实球形,直径5-6毫米,红色,内常具2小核。花期5-6月,果期8-9月。
分布(Distribution):产四川、云南、西藏,普遍生海拔2500-4100米长于多石山坡地、灌木丛中。印度、缅甸、不丹、尼泊尔均有分布。
用途(Use):常绿矮小灌木,春开白花,秋结红果,甚美观,是点缀岩石园的良好植物。
引自中国植物志英文版:FOC Vol. 9 Page 102     
Cotoneaster microphyllus Wallich ex Lindley, Bot. Reg. 13: t. 1114. 1827.
小叶栒子 xiao ye xun zi| Rosaceae  | Cotoneaster
Shrubs evergreen, , low, to 1 m tall, with stiff spreading branches. Branchlets reddish brown to blackish brown, terete, initially yellow pubescent, gradually glabrate. Petiole 1–2 mm to more than 4 mm, pubescent; stipules caducous, lanceolate or linear, nearly as long as petioles, slightly pubescent; leaf blade obovate to oblong-obovate, 4–10(–16) × 4–8 mm, thickly leathery, midvein raised abaxially and impressed adaxially, abaxially gray pubescent, rarely glabrous, adaxially glabrous or sparsely pubescent, base broadly cuneate, margin revolute, apex obtuse, rarely emarginate or ± acute. Inflorescences 1(–3)-flowered. Flowers 8–10 mm in diam. Pedicel 2–3 mm, sparsely pubescent. Hypanthium campanulate, abaxially pubescent at least initially. Sepals ovate-triangular, 1–1.5 mm and nearly as broad, apex obtuse. Petals spreading, white, suborbicular, ca. 4 mm and ca. as broad, base shortly clawed, apex obtuse. Stamens 15–20, shorter than petals. Ovary pubescent apically; styles 2, free, somewhat not exceeding stamens. Fruit scarlet-red, globose, 5–6(–10) mm in diam., pyrenes 2. Fl. May–Jun, fr. Aug–Sep. 2n = 34, 51, 68*, 102.
Rocks, slopes, high mountain areas, thickets, roadsides; 2000--4200 m. Sichuan, Xizang, Yunnan [Bhutan, India, Kashmir, Myanmar, Nepal, Sikkim].
Zhou & Wu (Acta Bot. Yunnan. 21: 160–166. 1999) treated the following varieties as synonyms of the species.




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