- Types:
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laver, sea lettuce
seaweed with edible translucent crinkly green fronds
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pond scum
free-floating freshwater green algae
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spirogyra
freshwater algae consisting of minute filaments containing spiral chlorophyll bands
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stonewort
any of various submerged aquatic algae of the genus Chara having nodes with whorled filamentlike branches; usually encrusted with calcium carbonate deposits
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desmid
freshwater green algae