Freshwater Algae of North America
Count: -
   Class Zygnematophyceae C.Hoek, D.G.Mann & H.M. Jahns (1995), nom. inval. - conjugating green algae see Class Zygnematophyceae Round ex Guiry (2013)
  Count: [*] 2o;6f;50g;65s;8v
     Order Desmidiales - placoderm desmids
    Count: [*] 4f;32g;44s;8v
       Family Gonatozygaceae
      Count: [*] 2g;5s
         Genus Gonatozygon de Bary (1856)
        Count: [*] 4s
           1 Gonatozygon brebissonii de Bary
          Count: -
           2 Gonatozygon kinahani (Archer) Rabenh.
          Count: -
           3 Gonatozygon monotaenium de Bary
          Count: -
           4 Gonatozygon laeve Hilse
          Count: -