菊科三种花佩菊属植物的叶表皮形态

Structural characters of leaf epidermis in Faberia(Asteraceae)

利用光学显微镜对花佩菊属3种7居群的叶表皮形态进行了观察,结果表明:3种花佩菊属植物上表皮细胞均为多边形,垂周壁式样均为垂直弓形,无气孔器;下表皮细胞除采自湖南省永顺县韭菜坡叶片为全缘的假花佩菊表皮细胞为多边形、垂周壁为平直弓形外,其他种的表皮细胞均为不规则形,垂周壁为波状,气孔器均为无规则型。花佩菊属植物的叶表皮特征具有重要的生态学和分类学意义,也为系统学研究提供新的资料。

The leaf epidermis of 7 populations representing 3 species of Faberia are investigated under light microscopy.The results show that the form of adaxial epidermal cells of 3 Faberia species is polygons,the anticlinal walls is vertically arched,and no stomatal apparatus;the form of abaxial epidermal cell of 3 Faberia species is irregular,the anticlinal walls is undulating,and the stomatal apparatus is anomocytic,except that one entire leaf Faberioposis nanchuanensis（C.Shih ＆ Y.L.Chen） collect from Jiucai slope,Yongshun County,Hunan Province had polygon epidermal cell,and straightly arched anticlinal walls.The characters of leaf epidermis in Faberia play an important role in ecology and taxonomy,and will contribute to systematics of Faberia.