中国独行菜属9种植物花粉形态扫描电镜观察

对中国产独行菜属9种植物的花粉微形态作了扫描电镜下的观察和研究。结果表明，花粉粒为超长球形或长球形，具三沟，外壁纹饰均为网状纹饰。根据外壁纹饰可分为3种类型：（1）网眼为不规则形状，网眼边缘常有刺突；（2）网眼为圆形或近圆形，网眼边缘较光滑；（3）网眼为多边形或不规则多边形，网眼边缘较光滑，偶有刺突。

Observation on the Pollen Morphology in 9 Species of Lepidium (Brassicaceae) in China by SEM

The pollen morphology of 9 species of Lepidium(Brassicaceae)in China were observed and studied under the scanning electron microscope(SEM).It is indicated that pollen grains are perprolate or prolate,with tricolpate,reticulate sculpture;the exine sculpture may be divided into three types: the lumina irregular,the brink of the lumina not smooth,verrucate;the lumina circular or subcircular,the brink of the lumina smooth;the lumina polygonous or irregular polygonous,the brink of the lumina smooth,rarely verrucate.