四倍体刺槐自身花粉粒的形状结构之间表现出丰富的变异：体积与形状多样，萌发孔沟的数量及位置不固定，外壁表面的纹饰特征彼此不同等等；
There were remarkable variations in the shape, volume, location and number of bourgeon -hole channels and veins on surface of pollen among pollens of TRP.
败育花粉的特征是花粉粒小，超微结构异常。
The abortive pollen was small than normal pollen and it's microstructure was abnormal.
败育花粉的特征是花粉粒小，超微结构异常。
The abortive pollen was small than normal pollen and it's microstructure was abnormal.
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