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|Noun||1.||Chlorococcales - unicellular green algae that reproduce by spores|
protoctist order - the order of protoctists
Chlorophyceae, class Chlorophyceae - algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments
Chlorococcum, genus Chlorococcum - type genus of Chlorococcales; unicellular green algae occurring singly or in a layer on soil or damp rock
genus Chlorella - nonmotile unicellular green algae potentially important as source of high-grade protein and B-complex vitamins