东方铁线莲种宗变异式样分析

Quantitative analyisis of variation pattern of Clematis orientalis complex

运用形象化散点图和柱形图对东方铁线莲种宗的３个近缘种的变异式样进行了定量分析．结果表明，东方铁线莲在萼片形态、毛被及叶的形态等方面与其它２个近缘种显著不同，而粉绿铁线莲和黄花铁线莲则十分相似，仅在叶的裂片形态特征上存在着一定的差异．笔者同意Ｃ．Ｆ．

By means of conventional taxonomic methods,it is difficult to discriminate Clematis orientalis and its allied species.A quantitative analysis of the correlations between certain key characters was thus made by applying the methods of pictorialized scatter diagram and histogram.Results from both methods have showed that this complex should be divided into 2 species: C.orientalis and C.glauca. According to the pictorialized scatter diagram and histogram, C.orientalis can easily seperated from its allied species.C. glauca and C.intricata are by no means strictly separadle.We support the view of Ledebour made in 1842 to treat C.intricata as a variety of C.glauca,C.glauca Will.Var. angustifolia Ledeb.