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海棠叶蜂斗草

海棠叶蜂斗草

中文学名:海棠叶蜂斗草

拉丁学名:Sonerila plagiocardia Diels

界:植物界

门:被子植物门

纲:双子叶植物纲

亚 纲:原始花被亚纲

目:桃金娘目

科:野牡丹科

亚 科:野牡丹亚科

族:蜂斗草族

属:蜂斗草属

分布区域:云南西南部至东南部

海棠叶蜂斗草,别名:海棠叶地胆,拉丁文名:Sonerila plagiocardia Diels. 为野牡丹科蜂斗草属草本,直立或匍匐上升,果期10-11月。 产于云南西南部至东南部。 [1]

目录

海棠叶蜂斗草形态特征

海棠叶蜂斗草 草本,直立或匍匐上升,长30-40厘米;茎棱上具翅,幼时近肉质,被疏腺毛,以后无毛。

叶片纸质或膜质,顶端渐尖,基部心形,偏斜(如秋海棠叶形),长5-13厘米,宽3.5-5.5(-6.5)厘米,边缘具细锯齿,掌状脉(6-)8(-9-11)条,中脉两侧钓脉数不相等,叶面被微柔毛,脉平整,有时脉为紫色,背面被细微柔毛,掌状脉隆起,明显,脉上被星散的短刺毛;叶柄被微柔毛及疏刺毛,具翅。

蝎尾状聚伞花序,顶生和腋生,有花5朵以上,有时具分枝,长3-6厘米,被疏腺毛,略有翅,总梗长2-4厘米,花梗长2-5毫米,被疏腺毛,花萼中部略缢缩,具三棱,长约7毫米,被微柔毛及疏腺毛,具6脉,裂片3,广三角形,长约1毫米,被疏腺毛,花瓣粉红色或红色,长约1.1厘米,顶端短渐尖,外面中脉具星散的腺毛;雄蕊3,通常,2短1长,稀等长,同形,偏向1侧,花丝长约8毫米,花药具小短喙,短者长约5毫米,长者长约9毫米,基部叉开,药隔不延伸;子房顶端膜质冠平截,3裂。

蒴果略具三棱,长约8毫米或略短,宽约5毫米(檐部),3纵裂,与宿存萼贴生;宿存萼被疏腺毛或无毛,具6脉,果梗增长达1.8厘米。 

Sonerila plagiocardia Diels in Engl., Bot. Jahrb. 65: 117. 1932; H. L. Li in Journ. Arn. Arb. 25: 36. 1944; 云南植物志2: 122. 图版30, 1-3. 1979, excl. specim. Kwangsi. et Kwangtung.——Fordiophyton begoniifolium H. L. Li 1. c. 28.

Herbs, erect or sometimes creeping, 30-40 cm tall, base woody. Stems 4-sided, succulent, winged, with sparse glandular trichomes, glabrescent. Petiole 2-10 cm, winged, puberulous and sparsely setose; leaf blade ovate, (2.5-)5-18 × 3.5-5.5(-10) cm, papery to membranous, adaxially puberulous and sometimes purple on veins, secondary veins (2-)4(or 5) on each side of midvein, base oblique or symmetrically deeply cordate, margin serrulate, abaxially puberulous and sparsely setose on veins, apex acuminate. Inflorescences terminal and axillary, scorpioid cymes, 3-6 cm, to 8-flowered, inconspicuously winged, sometimes branched, with sparse glandular trichomes; peduncle 2-4 cm. Pedicel 2-5 mm but to 1.8 cm in fruit, with sparse glandular trichomes or puberulous. Hypanthium tubular-campanulate, middle slightly contracted, 6-8 mm, 3-sided, 6-ribbed, puberulous and with sparse glandular trichomes. Calyx lobes 3, broadly triangular, 1-3 mm, slightly with glandular trichomes. Petals pink to red, oblong-obovate, 1-1.1 cm, middle vein with a few glandular trichomes, apex shortly acuminate. Stamens 3, usually 2 shorter and 1 longer, rarely equal. Longer stamens with filament ca. 8 mm; anthers oblong, 5-7 mm on longer stamen, ca. 9 mm on shorter stamens, base forked, apex rounded and shortly beaked. Ovary flask-shaped, apex truncate and with a membranous 3-lobed crown. Capsule campanulate, 7-8 × ca. 5 mm, 3-sided, 3-lobed; hypanthium 6-ribbed, slightly with glandular trichomes or glandular. Fl. Aug-Sep, fr. Oct-Nov.

海棠叶蜂斗草生长环境

生长于海拔800-2500米的山谷、山坡密林下,荫湿的地方及路旁。

海棠叶蜂斗草分布范围

产于云南西南部至东南部。模式标本采自云南思茅

参考来源

  1. 海棠叶蜂斗草, 植物智, 2020-01-18