Maripelta E.Y. Dawson, 1963 genus accepted

Chamaebotrys Huisman, 1996 genus accepted

Chrysymenia J.Agardh, 1842 genus accepted

Coelarthrum Børgesen, 1910 genus accepted

Cresia C. Lozada-Troche, D.L. Ballantine & H. Ruíz, 2010 genus accepted

Gloiosaccion Harvey, 1859 genus accepted

Halichrysis (J.G. Agardh) F. Schmitz, 1889 genus accepted

Halopeltis J.Agardh, 1854 genus accepted

Microphyllum Weber-van Bosse, 1928 genus accepted

Cephalocystis A.J.K. Millar, G.W. Saunders, I.M. Strachan & G.T. Kraft, 1996 genus accepted

Cordylecladia J.Agardh, 1852 genus accepted

Cryptarachne (W.H. Harvey) Kylin, 1931 genus accepted

Erythrocolon J.Agardh, 1896 genus accepted

Irvinea M.D. Guiry in G.W. Saunders, I.M. Strachan & G.T. Kraft, 1999 genus accepted

Dendrymenia Skottsberg, 1923 genus accepted

Leptosomia J.Agardh, 1892 genus accepted

Botryocladia (J.G. Agardh) Kylin, 1931 genus accepted

Gazzaea C.W. Schneider & C.E. Lane in Schneider et al., 2020 genus accepted

Rhodymeniocolax Setchell, 1923 genus accepted

Sciadophycus E.Y. Dawson, 1944 genus accepted

Sparlingia G.W. Saunders, I.M. Strachan & G.T. Kraft, 1999 genus accepted

Rhodymenia Greville, 1830 genus accepted

Agardhinula De Toni, 1897 genus accepted