Polyedriopsis Schmidle, 1899 genus accepted

Palmodictyaceae family synonym

Rotundellaceae family accepted

Hydrodictyaceae family accepted

Scenedesmaceae family accepted

Microsporaceae family accepted

Neochloridaceae family accepted

Radiococcaceae family accepted

Coelastraceae family synonym

Characiaceae family accepted

Ankistrodesmaceae family accepted

Tumidellaceae family accepted

Schizochlamydaceae family accepted

Pseudomuriellaceae family accepted

Chromochloridaceae family accepted

Mychonastaceae family accepted

Dictyococcaceae family accepted

Schroederiaceae family accepted

Dictyochloridaceae family accepted

Selenastraceae family accepted

Bracteacoccaceae family accepted

Chaetopediaceae family synonym

Bracteamorphaceae family accepted