不同种植物花粉外壁纹饰存在一定差异，三大类型花粉外壁纹饰存在一定的演化关系，可为种间分类及演化关系提供依据。
The ultstracture specialities of each plant pollen are of obvious differences. They can provide some important form information for plant classification and evolution.
不同种植物花粉外壁纹饰存在一定差异，三大类型花粉外壁纹饰存在一定的演化关系，可为种间分类及演化关系提供依据。
The ultstracture specialities of each plant pollen are of obvious differences. They can provide some important form information for plant classification and evolution.
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