Liverwort ?

Observation - Liverwort ? - UK and Ireland. Description: Looks like a very large liverwort growing on the vertical stone banks of the river.
Looks like a very large liverwort growing on the vertical stone banks of the river.
Observation - Liverwort ? - UK and Ireland. Description: Looks like a very large liverwort growing on the vertical stone banks of the river.
Looks like a very large liverwort growing on the vertical stone banks of the river.