国产野豌豆属植物叶表皮微形态特征及其系统学意义

应用光学显微镜和扫描电子显微镜对29种野豌豆属植物叶表皮微形态特征进行了观察。结果显示：叶表皮细胞形状有无规则形和多边形2种,垂周壁式样有深波状、浅波状和平直-弓形；表皮角质层纹饰微形态多样,大多数植物叶片表面不具有腺毛或仅中脉有,少数植物叶片表面具腺毛；部分叶表皮上有柔毛,少数植物无毛。气孔器存在于上表皮、下表皮、或上下表皮均有,形状为椭圆形、卵圆形,均为无规则型。野豌豆属植物叶表皮的这些微形态特征,在属内组间没有明确的规律性,但可为探讨本属种间的分类学及亲缘关系提供依据。

Leaf Epidermal Micro-morphology of 29 Species of the genus Vicia L. from China

The micromorphology of leaf epidermal surfaces of 29 species of Vicia L. from China were observed by using light microscope and scanning electron microscope. Both the adaxial and abaxial epidermal cells are polygonal or irregular in shape, with anticlinal walls undulate or straight and arched. Most species are amphistomatic, with some others hypostomatic or hyperstomatic. All stomata are anomocytic. Tow kinds of trichomes could be distinguished, non-glandular and glandular, and most species have both kinds. The cuticular wax ornamentation are smooth, striation or granular striation, or with platelet-like and flake-like wax. Some systematic significance of these epidermal features were discussed.