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绵萆Ｄｉｏｓｃｏｒｅａｓｐｏｎｇｉｏｓａ和七裂叶萆Ｄ．ｓｅｐｔｅｍｌｏｂａ在形态学、组织学、花粉粒表面特征等方面均有显著差异。绵萆 新种地位的确立是有充分根据的。
Sweezy Dioscoreaspongiosa and Qiliao D. Septemloba has significant differences in morphology, histology, and surface characteristics of pollen grains. The establishment of a new species status is well-founded.