Type genus of the family ulvaceae; green seaweed having a thallus two cells thick: sea lettuce.

石莼科的模式属；绿色海藻具有两个细胞厚度的叶状体；海莴苣。

youdao

Type genus of the family ulvaceae; green seaweed having a thallus two cells thick: sea lettuce.

石莼科的模式属；绿色海藻具有两个细胞厚度的叶状体；海莴苣。

youdao