(Mannia) (Mannia) is a biological genus in the family Aytoniaceae and order Marchantiales.
Mannia androgyna
Mannia californica
Mannia controversa
Mannia fragrans
Mannia gracilis
Mannia hegewaldii
Mannia paradoxa
Mannia perssonii
Mannia pilosa
Mannia sibirica
Mannia triandra
Asterella
Cryptomitrium
Mannia
Plagiochasma
Reboulia
Rebouliothallus