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密花树 Myrsine seguinii

时间:2013-10-18 13:56来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):密花树 学名( Scientific Name ): Myrsine seguinii H. Lv. 英文名( English Common Name ): 别名( Chinese Common Name ): 打铁树 异名( Synonym ): Rapanea neriifolia (Sieb. et Zucc.) Mez Athruphyllum neriifol
中文名(Chinese Name):密花树
学名(Scientific Name):Myrsine seguinii H. Lév.  
英文名(English Common Name):
别名(Chinese Common Name):打铁树
异名(Synonym):Rapanea neriifolia (Sieb. et Zucc.) Mez  Athruphyllum neriifolium H. Hara  Athruphyllum seguinii (H. Lév.) Nakai  Athruphyllum yunnanensis (Mez) Nakai  Rapanea neriifolia var. yunnanensis (Mez) E. Walker  Rapanea walkeriana Hand.-Mazz.  Rapanea yunnanensis Mez
科属(Family & Genus):紫金牛科(Myrsinaceae)密花树属
形态特征(Description):大灌木或小乔木,高2-7米,可达12米;小枝无毛,具皱纹,有时有皮孔。叶片革质,长圆状倒披针形至倒披针形,顶端急尖或钝,稀突然渐尖,基部楔形,多少下延,长7-17厘米,宽1.3-6厘米,全缘,两面无毛,叶面中脉下凹,侧脉不甚明显,背面中脉隆起,侧脉很多,不明显;叶柄长约1厘米或较长。伞形花序或花簇生,着生于具覆瓦状排列的苞片的小短枝上,小短枝腋生或生于无叶老枝叶痕上,有花3-10朵;苞片广卵形,具疏缘毛;花梗长2-3毫米或略长,无毛,粗壮;花长 (2-) 3-4毫米,花萼仅基部连合,萼片卵形,顶端钝或广急尖,稀圆形,长约1毫米,具缘毛,有时具腺点;花瓣白色或淡绿色,有时为紫红色,基部连合达全长的1/4,花时反卷,长 (2-) 3-4毫米,卵形或椭圆形,顶端急尖或钝,具腺点,外面无毛,里面和边缘密被乳头状突起,中部以下无上述突起;雄蕊在雌花中退化,在雄花中着生于花冠中部,花丝极短,花药卵形,略小于花瓣,无腺点,顶端常具乳头状突起;雌蕊与花瓣等长或超过花瓣,子房卵形或椭圆形,无毛,花柱极短,柱头伸长,顶端扁平,基部圆柱形,长约为子房的2倍。果球形或近卵形,直径4-5毫米,灰绿色或紫黑色,有时具纵行腺条纹或纵肋,冠以宿存花柱基部,果梗有时长达7毫米。花期4-5月,果期10-12月。
分布(Distribution):产我国西南各省至台湾,生于海拔650-2400米的混交林中或苔藓林中,也见于林缘、路旁等灌木丛中。缅甸,越南,日本也有。
用途(Use):用根煎水服,可治膀胱结石;树皮含鞣质20.11%;叶可敷外伤;木材坚硬,可作车杆车轴,又是较好的薪炭柴。
引自中国植物志英文版:FOC Vol. 15 Page 37
Myrsine seguinii H. Léveillé, Fl. Kouy-Tchéou. 288. 1915.
密花树 mi hua shu       | Myrsinaceae  | Myrsine
Athruphyllum neriifolium H. Hara; A. seguinii (H. Léveillé) Nakai; A. taiwanianum Nakai; A. yunnanensis (Mez) Nakai; Myrsine neriifolia Siebold & Zuccarini (1846), not Casaratto (1843); Rapanea neriifolia Mez; R. neriifolia var. yunnanensis (Mez) E. Walker; R. walkeriana Handel-Mazzetti; R. yunnanensis Mez.
Shrubs or trees 2-7(-12) m tall. Branchlets terete, 3-5 mm in diam., white lenticellate, rugose, reddish puberulent, early glabrescent. Petiole subterete, 0.9-1.5 cm; leaf blade elliptic to narrowly linear-oblanceolate 7-17 × 1.3-6 cm, leathery, glabrous, base cuneate, decurrent, margin entire, apex acute; lateral veins numerous, obscure, marginal vein absent. Inflorescences 3-10-flowered; bracts broadly ovate, sparsely ciliate. Flowers white, greenish, or sometimes purplish red, (2-)3-4 mm. Pedicel 2-4 mm, to 7 mm in fruit, glabrous, thick. Calyx disc-shaped, lobes nearly free, ovate, 0.8-1 mm, sometimes punctate, ciliate, apex broadly acute or rarely rounded. Petals united to 1/4 length, ovate or elliptic, (2-)3-4 mm, reflexed, punctate, glabrous outside, densely glandular granulose inside and along margin, apex acute or obtuse. Anthers ovate, not punctate on back, usually glandular granulose at apex. Ovary glabrous. Stigma elongated, flattened at base, ca. 2 × as long as ovary. Fruit grayish green or purplish black, globose or subovate, 4-5 mm in diam., sometimes longitudinally punctate, striate or ribbed. Fl. Apr-May, fr. Oct-Dec. 2n = 46*.
Mixed forests, shrubby areas, roadsides; 700-2400 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, SE Xizang, Yunnan, Zhejiang [Japan, Myanmar, Vietnam]


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