Bachmanniella R. Chodat, 1933 genus accepted

Chlorhormidium B. Fott, 1960 genus accepted

Chlorocystis L. Reinhard, 1885 genus accepted

Chlorothrix Y. Berger-Perrot in Y. Berger-Perrot & J.C. Thomas, 1982 genus accepted

Codiolum A. Braun, 1855 genus accepted

Fottea F. Hindák, 1968 genus accepted

Geminellopsis A.A. Korsikov, 1939 genus accepted

Gloeotilopsis Iyengar & Philipose, 1956 genus accepted

Halochlorococcum P.J.L.Dangeard, 1965 genus accepted

Microsporopsis W. Vischer, 1940 genus accepted

Binuclearia Wittrock, 1886 genus accepted

Coccothrix P.A. Broady & G.M. Lokhorst, 2000 genus accepted

Heterothrichopsis Iyengar & Kanthamma, 1941 genus accepted

Hormidiopsis Heering in Pascher, 1914 genus accepted

Hormidiospora Vinatzer, 1975 genus accepted

Ignatius H.C. Bold & F.J. MacEntee, 1974 genus accepted

Ingenhouzella Gaillon, 1833 (?) genus accepted

Interfilum R. Chodat, 1922 genus accepted

Dendronema Schmidle, 1897 genus accepted

Didymothrix Y.X. Wei & H.J. Hu in Y.X. Wei, 1991 genus accepted

Pseudulothrix Pascher, 1907 genus accepted

Raphidonemopsis T. Deason, 1969 genus accepted

Spongomorpha Kützing, 1843 genus accepted

Palaeogeminella T.R. Fairchild & J.W. Schopf in T.R. Fairchild, J.W. Schopf & R.L. Folk, 1973 genus accepted

Pearsoniella Fritsch & Rich, 1924 genus accepted

Psephonema H. Skuja in Handel-Mazzetti, 1937 genus accepted

Psephotaxus W. West & G.S. West, 1897 genus accepted

Pseudendocloniopsis Vischer, 1933 genus accepted

Pseudoneochloris Watanabe, Himizu, Lewis, Floyd & Fuerst, 2000 genus accepted

Pseudoschizomeris T. Deason & H. Bold, 1960 genus accepted

Losanaea V.B.A. Trevisan, 1848 genus accepted

Hediniella J.N.F. Wille in Hedin, 1922 genus accepted

Hormotrichopsis genus accepted

Pseudothrix L.A. Hanic & S.C. Lindstrom, 2008 genus accepted

Ulothrix Kützing, 1833 genus accepted

Ulotrichopsis L. Wichmann, 1937 genus accepted

Urospora J.E. Areschoug, 1866 genus accepted

Acrosiphonia J.Agardh, 1846 genus accepted