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华西小石积 Osteomeles schwerinae

时间:2013-11-06 13:55来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 华西小石积 学名( Scientific Name ): Osteomeles schwerinae Schneid. 英文名( English Common Name ): 别名( Chinese Common Name ): 沙糖果 异名( Synonym ): Osteomeles chinensis Lingelsh. et Borza Osteomele
中文名(Chinese Name):华西小石积
学名(Scientific Name):Osteomeles schwerinae Schneid.
英文名(English Common Name):
别名(Chinese Common Name):沙糖果
异名(Synonym):Osteomeles chinensis Lingelsh. et Borza  Osteomeles boninensis (Decne.) Nakai
科属Family & Genus):蔷薇科(Rosaceae)小石积属
形态特征(Description):落叶或半常绿灌木,高达1-3米,枝条开展密集;小枝细弱,圆柱形,微弯曲,幼时密被灰白色柔毛,逐渐脱落无毛,红褐色或紫褐色,多年生枝条黑褐色;冬芽小,扁三角卵形,先端急尖,紫褐色,近于无毛。奇数羽状复叶,具小叶片7-15对,连叶柄长2-4.5厘米,幼时外被绒毛,老时减少;小叶片对生,相距2-4毫米,椭圆形、椭圆长圆形或倒卵状长圆形,长5-10毫米,宽2-4毫米,先端急尖或突尖,基部宽楔形或近圆形,全缘,上下两面疏生柔毛,下面较密,小叶柄极短或近于无柄;叶轴上有窄叶翼,叶柄长3-5毫米,被柔毛;托叶膜质,披针形,有柔毛,早落。顶生伞房花序,有花3-5朵,直径2-3厘米;总花梗和花梗均密被灰白色柔毛,花梗长3-8毫米;苞片膜质,线状披针形,被柔毛,早落;花直径约1厘米;萼筒钟状,长约3毫米,外面近于无毛或有散生柔毛;萼片卵状披针形,先端急尖,全缘,与萼筒近等长,外面有柔毛,内面几无毛;花瓣长圆形,长5-7毫米,宽3-4毫米,白色;雄蕊20,比花瓣稍短;花柱5,基部被长柔毛,柱头头状,比雄蕊稍短。果实卵形或近球形,直径6-8毫米,蓝黑色,具宿存反折萼片;小核5,骨质,褐色,椭圆形,三稜,表面粗糙。花期4-5月,果期7月。
分布(Distribution):产四川、云南、贵州、甘肃,生海拔1500-3000米山坡灌木丛中或田边路旁向阳干燥地。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 118
Osteomeles schwerinae C. K. Schneider, Ill. Handb. Laubholzk. 1: 763. 1906.
华西小石积 hu xi xiao shi ji | Rosaceae  | Osteomeles
Shrubs or semishrubs, deciduous or evergreen, dense, spreading, 1–4 m tall. Branchlets reddish brown or purple, terete, slender, initially densely grayish white pubescent, glabrescent; buds depressed-triangular-ovoid, small, subglabrous. Leaves with 7–15 pairs of leaflets; stipules caducous, lanceolate, membranous; petiole 3–5 mm, pubescent to subglabrous, petiolules very short or nearly absent; leaflet blade elliptic or elliptic-oblong, rarely obovate-oblong, (3–)5–10 × 2–4 mm, both surfaces sparsely pubescent, abaxially densely so, base broadly cuneate or subrounded, margin entire, apex acute or mucronulate. Corymb 2–3 cm in diam., 3–5-flowered; peduncle grayish white pubescent; bracts caducous, linear-lanceolate, membranous, pubescent. Pedicel 3–5 mm, grayish white pubescent. Flowers ca. 1 cm in diam. Hypanthium campanulate, ca. 3 mm, abaxially subglabrous or sparsely pubescent. Sepals ovate-lanceolate, abaxially pubescent, margin entire, apex acute. Petals oblong, 5–7 × 3–4 mm. Stamens 20. Styles nearly as long as stamens, villous basally. Pome bluish black, ovoid or subglobose, 6–8 mm; fruiting pedicel 5–8 mm, slightly pubescent; sepals persistent, erect. Fl. Apr–May, fr. May–Jul.
Scrub, slopes, fields, roadsides, mixed forests; 1000--3000 m. Gansu, Guizhou, Shaanxi, Sichuan, Taiwan, Xizang, Yunnan.
 




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