Pappi are hollow and the wall of basal pappi ( inserting on placenta) is stoutest in the whole pappus, with placation and transverse.
部略向,壁开始逐渐变薄地方,冠毛内径有明显增大,是整个冠毛直径最大处;
Pappi are hollow and the wall of basal pappi ( inserting on placenta) is stoutest in the whole pappus, with placation and transverse.
部略向,壁开始逐渐变薄地方,冠毛内径有明显增大,是整个冠毛直径最大处;
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