However, the genera Bucegia and Preissia have since been merged into Marchantia, leaving only the single genus in the family.
A number of additional genera have been moved to other families:
Asterella, now in family Aytoniaceae
Conocephalum, now in family Conocephalaceae
Dumortiera, now in family Dumortieraceae
Lunularia, now in family Lunulariaceae
Reboulia, now in family Aytoniaceae
Neohodgsonia, now in family Neohodgsoniaceae