Nephrocytiaceae family accepted

Koliellaceae family accepted

Leptosiraceae family accepted

Protococcaceae family synonym

Chlorellaceae family accepted

Eremosphaeraceae family accepted

Ctenocladaceae family accepted

Ankistrodesmopsis F.Lederer & J.Lukavský, 1998 genus doubtful

Picochlorum W.J.Henley, J.L.Hironaka, L.Guillou, M.A.Buchheim, J.A.Buchheim, M.W.Fawley & K.P.Fawley, 2004 genus accepted