Pappi are hollow and the wall of basal pappi ( inserting on placenta) is stoutest in the whole pappus, with placation and transverse.
基部略向上一些,壁开始逐渐变薄的地方,的内径有一明显增,径最处;
Pappi are hollow and the wall of basal pappi ( inserting on placenta) is stoutest in the whole pappus, with placation and transverse.
基部略向上一些,壁开始逐渐变薄的地方,的内径有一明显增,径最处;
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