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西南栒子 Cotoneaster franchetii

时间:2013-11-06 12:53来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 西南栒子 学名( Scientific Name ): Cotoneaster franchetii Boiss. 英文名( English Common Name ): orange cotoneaster 别名( Chinese Common Name ): 佛氏栒子 异名( Synonym ): Cotoneaster insculptus Diels Co
中文名(Chinese Name):西南栒子
学名(Scientific Name):Cotoneaster franchetii Boiss.
英文名(English Common Name):orange cotoneaster
别名(Chinese Common Name):佛氏栒子
异名(Synonym):Cotoneaster insculptus Diels  Cotoneaster amoene Wils.  Cotoneaster franchetii var. cinerascens Rehder  Cotoneaster mairei H. Lév.  Cotoneaster amoenus E. H. Wilson  Cotoneaster mairei var. albiflorus H. Lév.
科属(Family & Genus):蔷薇科(Rosaceae)栒子属
形态特征(Description):半常绿灌木,高1-3米;枝开张,呈弓形弯曲,暗灰褐色或灰黑色,嫩枝密被糙伏毛,老时逐渐脱落。叶片厚,椭圆形至卵形,长2-3厘米,宽1-1.5厘米,先端急尖或渐尖,基部楔形,全缘,上面幼时具伏生柔毛,老时脱落,下面密被带黄色或白色绒毛;叶柄长2-3毫米,具绒毛;托叶线状披针形,有毛,成长时脱落。花5-11朵,成聚伞花序,生于短侧枝顶端,总花梗和花梗密被短柔毛;苞片线形,具柔毛;花梗长2-4毫米;花直径6-7毫米;萼筒钟状,外面密被柔毛,内面无毛;萼片三角形,先端急尖或短渐尖,外面密生柔毛,内面先端微具柔毛;花瓣直立,宽倒卵形或椭圆形,长4毫米,宽3毫米,先端圆钝,粉红色;雄蕊20,比花瓣短;花柱2-3,离生,短于雄蕊;子房先端有柔毛。果实卵球形,直径6-7毫米,桔红色,初时微具柔毛,最后无毛,常具3小核,有时多至5核。花期6-7月,果期9-10月。
分布(Distribution):产四川、云南、贵州,生多石向阳山地灌木丛中,海拔2000-2900米。泰国也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 96       r
Cotoneaster franchetii Bois, Rev. Hort. 1902: 379. 1902.
西南栒子 xi nan xun zi| Rosaceae  | Cotoneaste
Cotoneaster amoenus E. H. Wilson; C. franchetii var. cinerascens Rehder; C. insculptus Diels; C. mairei H. Léveillé; C. mairei var. albiflorus H. Léveillé.
Shrubs semievergreen, 1–3 m tall, with spreading, arching-inflexed branches. Branchlets dark grayish brown or grayish black, initially densely strigose, gradually glabrescent. Petiole 2–4 mm, tomentose; stipules linear-lanceolate, 2–4 mm, initially tomentose, glabrate; leaf blade elliptic to ovate, 2–3 × 1–1.5 cm, thick, lateral veins 4 or 5 pairs, raised abaxially and deeply impressed adaxially, abaxially densely yellow or white tomentose, adaxially initially appressed pubescent, glabrescent, base cuneate, apex acute or acuminate. Corymbs 1.5–2.5 cm, 5–11-flowered; rachis and pedicels densely tomentose; bracts linear, 2–3.5 mm, tomentose. Pedicel 2–4 mm. Flowers 6–7 mm in diam. Hypanthium campanulate, abaxially densely pubescent. Sepals triangular, 1–2 × 1.5–2.5 mm, apex acute or shortly acuminate. Petals erect, pink, broadly obovate or elliptic, 3–4 × 2–3 mm, adaxially puberulous near base, base shortly clawed, apex obtuse. Stamens 20, shorter than petals. Ovary pubescent apically; styles 2 or 3(–5), free, not exceeding stamens. Fruit orangish red or red, ovoid-globose, 6–7 mm in diam., initially pubescent, finally glabrous, pyrenes usually 3, rarely to 5. Fl. Jun–Jul, fr. Sep–Oct. 2n = 68*.
Thickets in rocky sunny mountain regions, open hillsides; 1600--2900 m. Guizhou, Sichuan, Xizang, Yunnan [Thailand].
Further study is necessary to determine the identity of Cotoneaster induratus J. Fryer & B. Hylmö, which might be synonymous with this taxon.
 


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