Pappi are hollow and the wall of basal pappi ( inserting on placenta) is stoutest in the whole pappus, with placation and transverse.
部略向上一些,壁开始逐渐变薄的地方,冠毛的内有一明显增,是整个冠毛直处;
Pappi are hollow and the wall of basal pappi ( inserting on placenta) is stoutest in the whole pappus, with placation and transverse.
部略向上一些,壁开始逐渐变薄的地方,冠毛的内有一明显增,是整个冠毛直处;
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