#pond_scum  free-floating freshwater green algae
  supertype:  #green_algae__greenalgae__chlorophyte  algae that are clear green in color; often growing on wet ricks or damp wood or the surface of stagnant water
  member of:  #family_Zygnemataceae__Zygnemataceae  pond scums: common freshwater algae forming green slimy masses
     member of:  #order_Zygnematales__Zygnematales__Zygnemales__order_Zygnemales  pond scums; desmids
        member of:  #class_Chlorophyceae__Chlorophyceae  algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments
           member of:  #division_Chlorophyta__Chlorophyta  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
              member of:  #kingdom_Protoctista__Protoctista  in most modern classifications, replacement for the Protista; includes: Protozoa; Euglenophyta; Chlorophyta; Cryptophyta; Heterokontophyta; Rhodophyta; unicellular protists and their descendant multicellular organisms: regarded as distinct from plants and animals

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