【摘要】 本文用数学方法分析了当归属及其邻近属15个种的果实特征.方差分析表明,果实的形状,如果的相对厚度和果棱的相对宽度,尽管存在着种内差异,在属和一些种的分类中很有价值.典型变量分析同时分析各类群的各个变量,本文用此法分析了双悬果的六个外部形态特征(均为数量性状),结果比单个变量分析更令人满意.根据果实的12个形态解剖特征,分别为名种绘制了多边图.结果表明,山芹属、柳叶芹属、古当归属(包括高山芹属)和狭义当归属的果实相互间差别比较明显.高山芹属和古当归属的果实几不压扁,中果皮发达但部分解体,故与当归属不同;但这两个分类群之间的界限并不明显.更多还原

【Abstract】 Fruit variations of fifteen representative species of Angelica L. and related genera were numerically analysed. The analysis of variance shows that, although there arc variations within species, the fruit shape, such as the relative thickness of carpels and the width of ribs, is valuable in the classification of these genera. Six exomorphic quantitative characters were employed in canonical variale analysis, which worked on many variables of all groups, a better result being achieved than that of univariatc analysis. Polygraphs were constructed from twelve morphological and anatomical characters of fruits; their patterns indicate that Archangclica Hoffm. (incluaing Cocloplcurum 1 odeb.), Angelica L., Czcrnacvia Turcz. and Ostcricum Hoffm. can be dnferenliatcd from cath other by their fruit characters. Fruits of Archangclica and Cocloplcurum arc distinct in having a large amount of and partly collapsed mesocarp ells, but the difTcrcncc between the two taxa is insignificant and the systematic status of Cocloplcurum needs further consideration更多还原