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红果树Stranvaesia davidiana

时间:2013-11-11 12:22来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 红果树 学名( Scientific Name ): Stranvaesia davidiana Dcne. 英文名( English Common Name ): 别名( Chinese Common Name ): 斯脱兰威木 异名( Synonym ): Stranvaesia davidiana var. salicifolia (Hutch.) Rehd
中文名(Chinese Name):红果树
学名(Scientific Name):Stranvaesia davidiana Dcne.
英文名(English Common Name):
别名(Chinese Common Name):斯脱兰威木
异名(Synonym):Stranvaesia davidiana var. salicifolia (Hutch.) Rehd.  Photinia davidiana (Decne.) Cardot  Photinia undulata var. formosana Cardot  Photinia niitakayamensis Hayata  Pyrus cavaleriei H. Lév.  Stranvaesia henryi Diels  Stranvaesia niitakayamensis (Hayata) Hayata  Stranvaesia salicifolia Hutch.  Pyrus davidiana var. formosana (Cardot) H. Ohashi et H. Iketani
科属Family & Genus):蔷薇科Rosaceae红果树属Stranvaesia
形态特征(Description):灌木或小乔木,高达1-10米,枝条密集;小枝粗壮,圆柱形,幼时密被长柔毛,逐渐脱落,当年枝条紫褐色,老枝灰褐色,有稀疏不显明皮孔;冬芽长卵形,先端短渐尖,红褐色,近于无毛或在鳞片边缘有短柔毛。叶片长圆形、长圆披针形或倒披针形,长5-12厘米,宽2-4.5厘米,先端急尖或突尖,基部楔形至宽楔形,全缘,上面中脉下陷,沿中脉被灰褐色柔毛,下面中脉突起,侧脉8-16对,不明显,沿中脉有稀疏柔毛;叶柄长1.2-2厘米,被柔毛,逐渐脱落;托叶膜质,钻形,长5-6毫米,早落。复伞房花序,直径5-9厘米,密具多花;总花梗和花梗均被柔毛,花梗短,长2-4毫米;苞片与小苞片均膜质,卵状披针形,早落;花直径5-10毫米;萼筒外面有稀疏柔毛;萼片三角卵形,先端急尖,全缘,长2-3毫米,长不及萼筒之半,外被少数柔毛;花瓣近圆形,直径约4毫米,基部有短爪,白色;雄蕊20,花药紫红色;花柱5,大部分连合,柱头头状,比雄蕊稍短;子房顶端被绒毛。果实近球形,桔红色,直径7-8毫米;萼片宿存,直立;种子长椭圆形。花期5-6月,果期9-10月。
分布(Distribution):产云南、广西、贵州、四川、江西、陕西、甘肃。生于山坡、山顶、路旁及灌木丛中,海拔1000-3000米。模式标本采自四川宝兴。
引自中国植物志英文版:FOC Vol. 9 Page 119     
Stranvaesia davidiana Decaisne, Nouv. Arch. Mus. Hist. Nat. 10: 179. 1874.
红果树 hong guo shu | Rosaceae  | Stranvaesia
Shrubs or small trees, 1–10 m tall, densely branched. Branchlets grayish brown when old, terete, initially densely villous, gradually glabrescent, with sparse, inconspicuous lenticels; buds reddish brown, narrowly ovoid, apex shortly acuminate; scales subglabrous or pubescent at margin. Petiole 1.2–2 cm, pilose, gradually glabrescent; stipules caducous, subulate, 5–6 mm, membranous, slightly pilose; leaf blade oblong, oblong-lanceolate, or oblanceolate, (3–)5–12 × 2–4.5 cm, midvein raised abaxially and impressed adaxially, lateral veins 8–16 pairs and inconspicuous, both surfaces grayish brown villous along midvein, base cuneate to broadly cuneate, margin entire or undulate, apex acute or abruptly pointed. Compound corymbs terminal, 5–8 × (1.5–)5–10 cm, few or numerous flowered; rachis and pedicels villous; bracts caducous, ovate-lanceolate, membranous. Pedicel 2–4 mm. Flowers 5–10 mm in diam. Hypanthium cupular, 5–7 mm, abaxially sparsely villous. Sepals triangular-ovate, 2–3 mm, margin entire, apex acute. Petals suborbicular, 4–5 mm in diam., base shortly clawed. Stamens 20; anthers purplish red. Styles 5, mostly connate, not exceeding stamens; stigma capitate; ovary tomentose apically. Fruit orangish red, subglobose, 7–8 mm in diam.; sepals erect; seeds narrowly ellipsoid. Fl. May–Jun, fr. Sep–Oct.
Slopes, mountain summits, roadsides, thickets, river valleys, damp gullies; 900--3000 m. Fujian, Gansu, Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Malaysia, N Vietnam].
One of us (Spongberg) notes that, because of variability, further study is necessary to determine whether these taxa are really distinct.




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