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小叶猕猴桃Actinidia lanceolata

时间:2013-07-15 16:49来源:未知 作者:徐晔春 点击:
小叶猕猴桃,Actinidia lanceolata,狭叶猕猴桃




中文名(Chinese Name):小叶猕猴桃
学名(Scientific Name):Actinidia lanceolata Dunn
英文名(English Common Name):
别名(Chinese Common Name):狭叶猕猴桃
异名(Synonym):
科属(Family & Genus):猕猴桃科,Actinidiaceae,猕猴桃属, Actinidia
形态特征(Description):小型落叶藤本;着花小枝一般长10-15厘米,距状枝5-7厘米,径约2毫米,密被锈褐色短茸毛,皮孔可见;隔年枝灰褐色,秃净无毛,皮孔小,不很显著;髓褐色,片层状。叶纸质,卵状椭圆形至椭圆披针形,长4-7厘米,宽2-3厘米,顶端短尖至渐尖,基部钝形至楔尖,边缘的上半部有小锯齿,腹面绿色,散被粉末状微毛或完全无毛,背面粉绿色,密被短小且密致的灰白色星状茸毛,星状毛在一般放大镜下不易观察,侧脉5-6对,横脉和网状小脉肉眼下不易观察;叶柄长8-20毫米,密被锈褐色茸毛。聚伞花序2回分歧,有花7朵或少于7朵,密被锈褐色茸毛,花序柄长3-6毫米,花柄长2-4毫米;苞片钻形,长1-1.5毫米;花淡绿色,直径约1厘米;萼片3-4片,卵形或长圆形,长约3毫米,3枚的萼片中1或2枚的顶端有楔状浅裂,内外面均被茸毛,内面的毛被较薄;花瓣5片,条状长圆形或瓢状倒卵形,长4-5.5毫米,雄花的稍较长;花丝1-4毫米,花药长圆形,长1-1.5毫米,雄花的均稍较长,子房球形或卵形,径约1.5毫米,密被茸毛,花柱下部1/3或基部小部分粘连,粘连部分有毛或无毛,木育子房卵形,被毛。果小,绿色,卵形,长8-10毫米,秃净,有显著的浅褐色斑点,宿存萼片反折,种子纵径1.5-1.8毫米。花期5 月中-6月中。果熟期11月。
分布(Distribution):产浙江、江西、福建、湖南、广东等省。生于海拔200-800米山地上的高草灌丛中或疏林中和林缘等环境。
用途(Use):
引自中国植物志英文版:FOC Vol. 12 Page 337, 351
Actinidia lanceolata Dunn, J. Linn. Soc., Bot. 38: 356. 1908.
小叶猕猴桃 xiao ye mi hou tao  | Actinidiaceae  | Actinidia
Climbing shrubs, small, deciduous. Floral branchlets densely ferruginous velutinous, lenticels subconspicuous, two-year-old branches glabrous, lenticels inconspicuous; pith brown, lamellate. Petiole 0.8-2 cm, densely ferruginous velutinous; leaf blade abaxially glaucous, adaxially green, elliptic-ovate to elliptic-lanceolate, 4-7 × 2-3 cm, papery, abaxially densely appressed stellate with very short, grayish hairs, adaxially glabrous to very sparsely glandular-puberulent, midvein and lateral veins conspicuous abaxially, inconspicuous adaxially, lateral veins 5 or 6 pairs, reticulate veinlets and transverse veins inconspicuous abaxially, base cuneate to obtuse, margin serrulate on upper parts, apex acuminate to shortly acuminate. Inflorescences cymose, 2-branched, to 7-flowered, densely ferruginous velutinous; peduncles 3-6 mm; pedicels 2-4 mm; bracts linear, 1-1.5 mm. Flowers greenish. Sepals 3-5, ovate to oblong, 3-4 mm, abaxially ferruginous puberulent, adaxially sparsely puberulent. Petals 5, oblong to spatulate-obovate, 4-5.5 mm. Filaments 1-4 mm; anthers yellow, oblong, 1-1.5 mm. Ovary subglobose to ovoid, ca. 1.5 mm in diam., densely ferruginous tomentose; styles ca. 1.5 mm. Fruit ovoid, small, 8-10 mm, glabrous, lenticels pale brown; persistent sepals reflexed. Seeds 1.5-1.8 mm. Fl. May-Jun, fr. Nov. 2n = 58*.
● Sparse forests, forest margins, tall grassy thickets; 200-800 m. Anhui, Fujian, Guangdong, Hunan, Jiangsu, Jiangxi, Zhejiang.
(责任编辑:徐晔春)
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