large division of chiefly freshwater eukaryotic algae that possess chlorophyll a and b,store food as starch,and cellulose cell walls; classes Chlorophyceae,Ulvophyceae,and Charophyceae; obviously ancestral to land plants.
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释义
主要是淡水真核状态的藻类的一个大门,具叶绿素A和B,储备食物作淀粉、纤维素细胞壁;绿藻纲和轮藻纲;明显地祖先陆地植物。
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