三种花灌木叶表皮特征扫描电镜观察

利用扫描电镜观察了燕山东段三种花灌木木半夏（Elaeagnus multiflora Thunb．）、达乌里胡枝子（Lespedeza daurica （Laxm．）Sehindl．）和蚂蚱腿子（Myripnois dioica Bge．）的叶表皮特征。结果表明：①蚂蚱腿子的上下表皮均无表皮毛分布；木半夏上下表皮都有表皮毛分布；达乌里胡枝子的表皮毛仅分布在下表皮。②达乌里胡枝子的上下表皮都有气孔分布；木半夏、蚂蚱腿子仅下表皮有气孔分布。③达乌里胡枝子的气孔下陷；木半夏、蚂蚱腿子的气孔不下陷。④木半夏、达乌里胡枝子、蚂蚱腿子的上下表皮细胞表面平缓。

SEM Observation of Epidermal Characteristics of Leaves of Three Flowering Shrubs

Epidermal characteristics of leaves in three flowering shrubs in the eastern part of Yanshan Mount were studied under SEM. The results indicate that:(1)There are no trichome on both upper and lower epidermis of leaves in Myripnois dioica Bge; but there are trichome on both upper and lower epidermis of leaves in Elaeagnus multiflora Thunb. There are trichome only on lower epidermis of leaves in Lespedeza daurica(Laxm. ) (2)There are stomata on both upper and lower epidermis of leaves in Lespedeza daurica(Laxm. ) Schindl; but there are stomata only on lower epidermis in the others. (3) The stomata of leaf epidermis in Lespedeza daurica(Laxm. ) Schindl sink, but those in both Elaeagnus multiflora Thunb and Myripnois dioica Bge do not. (4)The surface of leaf epidermis cell in the three flowering shrubs is smooth.