The haustrum structure of the two were similar and both were composed of parenchyma and spiral vessel.
北桑寄生叶较薄,叶脉发达,无织和海绵织的化。
The haustrum structure of the two were similar and both were composed of parenchyma and spiral vessel.
北桑寄生叶较薄,叶脉发达,无织和海绵织的化。
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