八蕊花查看源代码讨论查看历史
| 八蕊花 |
|
中文学名:八蕊花 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:蔷薇亚纲 目:桃金娘目 科:野牡丹科 亚 科:野牡丹亚科 族:蜂斗草族 属:八蕊花属 种:八蕊花 分布区域:产云南西部 |
八蕊花形态特征
灌木，高1-1.2米；茎钝四棱形，上部分枝，幼时被极细的微柔毛，以后无毛。
叶片坚纸质，圆形、近圆形或略倒卵状圆形，顶端急尖，基部钝或广楔形，长9.5-13.5厘米，宽7.5-12厘米，边缘具不明显的密细锯齿，齿尖具短刺毛，5 (-7)基出脉，两面被细微的糠秕，叶面基出脉下凹，侧脉隆起，背面基出脉、侧脉隆起，明显；叶柄长3.5-8厘米，具槽，近无毛。
伞形花序，腋生，总梗极短或几无，花梗长约1厘米，多少被微柔毛；花萼钟状漏斗形，长约6毫米，多少被微柔毛，具钝四棱，裂片广卵形或三角状卵形，顶端急尖或近渐尖，长约2毫米，里面具小突起；花瓣粉红色，广卵形，1侧偏斜，顶端渐尖，长约9毫米，具小突起；雄蕊近等长，花丝长约8毫米，花药长7毫米，基部具小疣，药隔基部下延呈短距，距长约1毫米；子房坛形，顶端具4钝齿，齿具缘毛。
Sporoxeia sciadophila W. W. Smith in Not. Bot. Gard. Edinb. 10: 70. 1917; Diels in Engl. Bot. Jahrb. 65: 104. 1932; Merr. in Brittonia 4: 127. 1941; 云南植物志2: 109. 图版27, 16-17. 1979.
Shrubs 1-1.2 m tall. Stems obtusely 4-sided, densely puberulous when young, glabrescent. Petiole 3.5-8 cm, when young setose or puberulous, glabrescent; leaf blade orbicular, suborbicular, or subobovate-orbicular, 9.5-15 × 7.5-12 cm, stiffly papery, both surfaces furfuraceous or abaxially setose on veins otherwise densely glandular squamose, adaxially setose or strigose on veins otherwise puberulous, secondary veins 2(or 3) on each side of midvein, base obtuse, broadly cuneate, or subcordate, margin inconspicuous densely denticulate with short to long setose-tipped teeth, apex acute. Inflorescences in axils of leaves or at petiole scars on older branches, umbellate; bracts subulate, small, caducous. Pedicel 0.5-1 cm, ± puberulous. Hypanthium campanulate-funnelform, ca. 6 mm, obtusely 4-sided, ± puberulous. Calyx lobes broadly ovate to triangular-ovate, 2-3 mm, inside puberulous, apex acute to nearly acuminate. Petals pink, broadly ovate, 7-9 × ca. 6 mm, oblique, apex acuminate. Stamens equal; filaments 4-8 mm; anthers lanceolate, 5-7 mm, 2-tuberculate at base; connective inflated, extended, forming a spur ca. 1 mm. Ovary urceolate, ciliate, apex obtuse 4-denticulate. Capsule subglobular, ca. 5 mm in diam., obtusely 4-sided; hypanthium subglobular, 8-ribbed. Fl. Jul-Aug, fr. Oct-Dec.
Broad-leaved evergreen forests, stony mountain slopes; moist places; 1400-2800 m. Yunnan [Myanmar].
蒴果近球形，具钝四棱，直径约5毫米，与宿存萼同形；宿存萼粗糙，具隆起的8脉。
花期7-8月，果期5-6月。
八蕊花生长环境
生于海拔1400-2500米的石灰岩山坡常绿阔叶林下。