異形木
異形木 |
中文學名:異形木 拉丁學名:Allomorphia balansae 別 稱:肖風木 界:植物界 門:被子植物門 綱:雙子葉植物綱 目:桃金娘目 科:野牡丹科 屬:異形木屬 |
異形木,別名:肖風木,拉丁文名:Allomorphia balansae Cogn.,是桃金娘目、野牡丹科、異形木屬灌木,分布於中國廣西、海南島。 [1]
目錄
異形木形態特徵
灌木,高1-3米;莖幼時四棱形,密被銹色糠秕,以後圓柱形,糠秕脫落, 異形木 皮黑色,分枝多,節略膨大。
葉片堅紙質或紙質,卵形、寬卵形或橢圓形,稀披針形,頂端漸尖至尾狀漸尖,基部圓形或寬楔形,長6.5-19厘米,寬2.5-9厘米,通常長約12厘米,寬5.5厘米,近全緣或具極微的疏細齒,基出脈5條,最外側的近邊緣,葉面無毛或幼時被疏糠秕,基出脈平整,背面以脈上糠秕較多,脈隆起;葉柄長1-4.5厘米,通常為2.5厘米,密被糠秕。
由聚傘花序組成狹圓錐花序,生於分枝頂端,長7-11厘米,寬2-3厘米,密被糠秕,每個小聚傘花序總梗長4-7毫米,花梗長約2毫米;花萼狹漏斗形,被糠秕,管長約5毫米,裂片狹三角形(幾棒狀),長約1毫米;花瓣廣卵形或卵形,頂端急尖,長約2毫米,外面多少被糠秕;雄蕊花葯長約4毫米,花絲長約2.7毫米,藥隔不膨大,無距;子房卵形,頂端具4小齒。
蒴果橢圓形或近卵形,長約4毫米,直徑約3毫米;宿存萼較果長,長約5毫米,近上部縊縮,具8條縱肋,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. 圖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.
異形木生長環境
生長於海拔420-1500米的林下,也生長於潮濕的地方。[2]