#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
  supertype:  division.biological_group  (biology) a group of organisms forming a subdivision of a larger category
  member of:  kingdom_Protoctista
  member:  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:  order_Ulvales__Ulvales  an order of protoctista
        member:  family_Ulvaceae__Ulvaceae__sea-lettuce_family__sealettucefamily  thin flat or tubular green algae
           member:  genus_Ulva__Ulva  type genus of the family Ulvaceae; green seaweed having a thallus two cells thick: sea lettuce
              member:  sea_lettuce__sealettuce__laver  seaweed with edible translucent crinkly green fronds
     member:  order_Volvocales__Volvocales  chiefly freshwater green algae; solitary or colonial
        member:  family_Volvocaceae__Volvocaceae  unicellular or colonial biflagellate free-swimming flagellates
           member:  genus_Volvox__Volvox  type genus of the Volvocaceae; minute pale green flagellates occurring in tiny spherical colonies; minute flagella rotate the colony about an axis
        member:  family_Chlamydomonadaceae__Chlamydomonadaceae  green algae some of which are colored red by hematochrome
           member:  genus_Chlamydomonas__Chlamydomonas  type genus of the Chlamydomonadaceae; solitary doubly-flagellated plant-like algae common in fresh water and damp soil; multiply freely; often a pest around filtration plants
     member:  order_Zygnematales__Zygnematales__Zygnemales__order_Zygnemales  pond scums; desmids
        member:  family_Zygnemataceae__Zygnemataceae  pond scums: common freshwater algae forming green slimy masses
           member:  genus_Zygnema__Zygnema  type genus of the family Zygnemataceae
           member:  pond_scum  free-floating freshwater green algae
           member:  genus_Spirogyra  a genus of protoctista
              member:  spirogyra  freshwater algae consisting of minute filaments containing spiral chlorophyll bands
     member:  order_Chlorococcales__Chlorococcales  unicellular green algae that reproduce by spores
        member:  genus_Chlorococcum__Chlorococcum  type genus of Chlorococcales; unicellular green algae occurring singly or in a layer on soil or damp rock
        member:  genus_Chlorella  nonmotile unicellular green algae potentially important as source of high-grade protein and B-complex vitamins
           member:  chlorella  any alga of the genus Chlorella
     member:  Oedogoniales__order_oedogoniales  simple or branched filamentous freshwater green algae
        member:  family_Oedogoniaceae__Oedogoniaceae  filamentous green algae
           member:  genus_Oedogonium__Oedogonium  type genus of Oedogoniaceae; freshwater green algae having long unbranched filaments; usually free-floating when mature
  member:  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:  class_Ulvophyceae__Ulvophyceae  alternative name for the class Chlorophyceae in some classifications
  member:  class_Charophyceae__Charophyceae  in some classifications: contains only the order Charales
     member:  order_Charales__Charales  small order of macroscopic fresh and brackish water algae with a distinct axis: stoneworts
        member:  family_Characeae__Characeae  green algae superficially resembling horsetail ferns: stoneworts
           member:  stonewort  any of various submerged aquatic algae of the genus Chara having nodes with whorled filamentlike branches; usually encrusted with calcium carbonate deposits
           member:  genus_Chara__Chara  green algae common in freshwater lakes of limestone districts
           member:  genus_Nitella__Nitella  fragile branching stoneworts
     member:  family_Desmidiaceae__Desmidiaceae  unicellular algae
        member:  genus_Desmidium__Desmidium  a genus of protoctista
           member:  desmid  freshwater green algae

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