(Methylocystaceae) (Methylocystaceae) is a biological family of the class Alphaproteobacteria and order Rhizobiales.
Albibacter
Hansschlegelia
Methylocystis
Methylopila
Methylosinus
Pleomorphomonas
Terasakiella
Aurantimonadaceae
Bartonellaceae
Beijerinckiaceae
Bradyrhizobiaceae
Brucellaceae
Cohaesibacteraceae
Hyphomicrobiaceae
Methylobacteriaceae
Methylocystaceae
Phyllobacteriaceae
Rhizobiaceae
Rhodobiaceae
Xanthobacteraceae