异形木
异形木 |
中文学名:异形木 拉丁学名:Allomorphia balansae 别 称:肖风木 界:植物界 门:被子植物门 纲:双子叶植物纲 目:桃金娘目 科:野牡丹科 属:异形木属 |
异形木,别名:肖风木,拉丁文名:Allomorphia balansae Cogn.,是桃金娘目、野牡丹科、异形木属灌木,分布于中国广西、海南岛。 [1]
目录
异形木形态特征
灌木,高1-3米;茎幼时四棱形,密被锈色糠秕,以后圆柱形,糠秕脱落, 异形木 皮黑色,分枝多,节略膨大。
叶片坚纸质或纸质,卵形、宽卵形或椭圆形,稀披针形,顶端渐尖至尾状渐尖,基部圆形或宽楔形,长6.5-19厘米,宽2.5-9厘米,通常长约12厘米,宽5.5厘米,近全缘或具极微的疏细齿,基出脉5条,最外侧的近边缘,叶面无毛或幼时被疏糠秕,基出脉平整,背面以脉上糠秕较多,脉隆起;叶柄长1-4.5厘米,通常为2.5厘米,密被糠秕。
由聚伞花序组成狭圆锥花序,生于分枝顶端,长7-11厘米,宽2-3厘米,密被糠秕,每个小聚伞花序总梗长4-7毫米,花梗长约2毫米;花萼狭漏斗形,被糠秕,管长约5毫米,裂片狭三角形(几棒状),长约1毫米;花瓣广卵形或卵形,顶端急尖,长约2毫米,外面多少被糠秕;雄蕊花药长约4毫米,花丝长约2.7毫米,药隔不膨大,无距;子房卵形,顶端具4小齿。
蒴果椭圆形或近卵形,长约4毫米,直径约3毫米;宿存萼较果长,长约5毫米,近上部缢缩,具8条纵肋,被糠秕。花期6-8月,果期10-12月。
Allomorphia balansae Cogn. in DC. Monogr. Phan. 7: 1183. 1891 (sphalm. ut #$#baiansaei#$# ); Guillaum. in Lecte. Fl. Gen. Indo-Chine 2: 901. 1921; Diels in Engl. Bot. Jahrb. 65: 142. 1932; H. L. Li in Journ. Arn. Arb. 25: 10. 1944; 海南植物志 2: 29. 图302. 1965.
Shrubs, 1-7 m tall. Stems 4-sided when young, densely furfuraceous, becoming terete and glabrescent; bark black; branches numerous. Petiole 2-4.5 cm, furfuraceous; leaf blade ovate, broadly ovate, elliptic, or rarely lanceolate, 6.5-19 × 2.5-9 cm, stiffly papery, abaxially furfuraceous, adaxially glabrous or sparsely furfuraceous when young, secondary veins 2 on each side of midvein, outer secondary vein inconspicuous and close to leaf margin, base rounded to broadly cuneate, margin entire or slightly sparsely serrulate, apex acuminate to caudate-acuminate. Inflorescences terminal, narrowly paniculate cymose, 17-26 × 2-4 cm, furfuraceous. Pedicel ca. 2 mm. Hypanthium narrowly funnel-shaped, 4-5 mm at anthesis, furfuraceous. Calyx lobes narrowly triangular to almost clavate, ca. 1 mm. Petals pink, broadly ovate to ovate, 3-5 mm, apex acute. Filaments ca. 2.7 mm; anthers 3.5-4 mm; connective not inflated, not spurred. Ovary ovoid, apex 4-denticulate. Capsule ovoid, 3.5-4 × 3-4 mm; hypanthium ca. 5 mm, longitudinally 8-ribbed, furfuraceous, apically contracted. Fl. Jun-Aug, fr. Oct-Dec.
异形木生长环境
生长于海拔420-1500米的林下,也生长于潮湿的地方。[2]