[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Algae L. (1753) see [unranked] Algae
     Phylum Chlorophycota see Phylum Chlorophyta Pascher (1914)
       Class Chlorophyceae Wille (1884) - chlorophytes
         Order Ulotrichales Borzi
           Family Ulotrichaceae Kützing
             Genus Ulothrix F.T. Kützing (1833)
               01 Ulothrix brunnthaleri Schussnig
               02 Ulothrix discifera Kjellman
               03 Ulothrix flacca (Dillwyn) Thuret (1863)
               04 Ulothrix flexuosa Schussnig
               05 Ulothrix implexa (Kützing) Kützing (1849)
               06 Ulothrix longicauda Schussnig
               07 Ulothrix palusalsa Lokhorst (1978)
               08 Ulothrix speciosa (Carmichael) Kütz. (1849)
               09 Ulothrix subflaccida Wille (1901)
               10 Ulothrix tenerrima Kützing
               11 Ulothrix tenuissima Kützing (1833)
               12 Ulothrix zonata (F.Weber & D. Mohr) Kützing (1833)