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云南栘依 Docynia delavayi

时间:2013-11-07 11:25来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 云南栘依 学名( Scientific Name ): Docynia delavayi (Franch.) Schneid. 英文名( English Common Name ): 别名( Chinese Common Name ): 西南栘依、桃姨 异名( Synonym ): Cotoneaster bodinieri H. Lv. Eriolobus
中文名(Chinese Name):云南栘依
学名(Scientific Name):Docynia delavayi (Franch.) Schneid.
英文名(English Common Name):
别名(Chinese Common Name):西南栘依、桃姨
异名(Synonym):Cotoneaster bodinieri H. Lév.  Eriolobus delavayi (Franch.) C. K. Schneid.  Pyrus delavayi Franch.  Cydonia delavayi (Franch.) Cardot
科属Family & Genus):蔷薇科(Rosaceae)栘依属
形态特征(Description):常绿乔木,高达3-10米,枝条稀疏;小枝粗壮,圆柱形,幼时密被黄白色绒毛,逐渐脱落,红褐色,老枝紫褐色;冬芽卵形,先端渐尖,鳞片外被柔毛。叶片披针形或卵状披针形,长6-8厘米,宽2-3厘米,先端急尖或渐尖,基部宽楔形或近圆形,全缘或稍有浅钝齿,上面无毛,深绿色,革质,有光泽,下面密被黄白色绒毛;叶柄长约1厘米,密被绒毛;托叶小,披针形,早落。花3-5朵,丛生于小枝顶端;花梗短粗,近于无毛,果期伸长,密被绒毛;苞片膜质,披针形,早落;花直径2.5-3厘米;萼筒钟状,外面密被黄白色绒毛;萼片披针形或三角披针形,长5-8毫米,先端渐尖或急尖,全缘,比萼筒稍短,内外两面均密被绒毛;花瓣宽卵形或长圆倒卵形,长12-15毫米,宽5-8毫米,基部有短爪,白色;雄蕊40-45,花丝长短不等,比花瓣短约三分之一;花柱5,基部合生并密被绒毛,与雄蕊近等长或稍短,柱头棒状。果实卵形或长圆形,直径2-3厘米,黄色,幼果密被绒毛,成熟后微被绒毛或近于无毛,通常有长果梗,外被绒毛;萼片宿存,直立或合拢。花期3-4月,果期5-6月。
分布(Distribution):产云南、四川、贵州,生海拔1000-3000米山谷、溪旁、灌丛中或路旁杂木林中。
用途(Use):果实味酸,在云南供作柿果催熟剂用,栽培供观赏。
引自中国植物志英文版:FOC Vol. 9 Page 171     
Docynia delavayi (Franchet) C. K. Schneider, Repert. Spec. Nov. Regni Veg. 3: 180. 1906.
云南栘[木衣]  yun nan duo yi| Rosaceae  | Docynia
Pyrus delavayi Franchet, Pl. Delavay. 227. 1890; Cotoneaster bodinieri H. Léveillé; Cydonia delavayi (Franchet) Cardot; Eriolobus delavayi (Franchet) C. K. Schneider.
Trees evergreen, to 3–10 m tall. Branches loose; branchlets reddish brown or purplish brown, robust, terete, initially densely yellow tomentose, glabrescent; buds reddish brown, ovoid; scales with pubescent margin, apex acuminate. Stipules caducous, lanceolate, small; petiole ca. 1 cm, densely tomentose; leaf blade lanceolate or ovate-lanceolate, 6–8 × 2–3 cm, leathery, abaxially densely yellowish white tomentose, adaxially lustrous, base cuneate or subrounded, margin entire or slightly crenulate, apex acute or acuminate. Pedicel short, subglabrous, in fruit becoming longer, densely tomentose. Flowers 3–5-fascicled, 2.5–3 cm in diam.; bracts lanceolate, apex acuminate. Hypanthium campanulate, abaxially yellowish white tomentose. Sepals lanceolate or triangular-lanceolate, 5–8 mm, both surfaces densely tomentose, shorter than hypanthium, margin entire, apex acute or acuminate. Petals white, ovate or oblong-ovate, 1.2–1.5 cm × 5–8 mm. Stamens 40–45. Styles equalling or lower than stamens, connate and pubescent at base. Pome yellow, ovoid or oblong, 2–3 cm in diam., initially densely tomentose, slightly tomentose or subglabrous when mature; sepals persistent. Fl. Mar–Apr, fr. Aug–Sep.
River sides in valleys, mixed forests, mountainous areas; 1000--3000 m. W Guizhou, W Sichuan, NW Yunnan.




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