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应用叶片离析法和石蜡切片法,在光学显微镜下观察了国产甘草属植物10种1变种共16个代表植物的叶表皮特征。统计并测量叶表皮气孔大小、气孔密度及气孔指数。结果表明,该属植物叶表皮细胞形态(表面观)为多边形和不规则形,垂周壁式样为平直、浅波缘、深波缘;气孔器有6种类型,以无规则型、不等型、短平列型为主,一种植物往往具有2~3种气孔器;毛状体为单毛和鳞片毛两种类型。以上特征在属以下、种以上的分类等级具有一定规律性,有的也表现出种间差异,对甘草属属以下等级的划分有重要价值,同时也为本属一些分类群间的系统关系的探讨提供佐证。
Leaf epidermal features of 16 representative plants from 10 species and 1 variety of Glycyrrhiza were observed under a light microscope using leaf segregation method and paraffin section method. Statistics and measurement of leaf epidermal stomata size, stomatal density and stomatal index. The results showed that the leaf epidermal cells of the genus were polygons and irregular in morphology, with flat, shallow and deep margins in the apical wall. Six types of stomatal apparatus were observed, which were irregular in shape Type, short-flat-based, a plant often has 2-3 stomatal apparatus; trichomes are single-hair and scaly hair two types. The above characteristics belong to the following genus and above, the classification level has a certain regularity, and some also show interspecific differences. It is of great value to the classification of genus Glycyrrhiza and is also the systematic relation among some taxa Prove to provide evidence.