In addition .there occurred difference in the structure of cotyledonary haustrum and other storages.

此外在子吸器的结它贮藏物等方面也在差异。

The haustrum structure of the two were similar and both were composed of parenchyma and spiral vessel.

北桑寄生，脉发达，无栅栏组织海绵组织的分化。