Liverworts vary in size from very small leafy forms to large, lobed types.
There are two forms of liverworts, thallose and leafy. A common species of thallose liverworts is Marchantia. Marchantia is typically terrestrial. Marchantia is dichotomously branched . Air chambers line the upper surface of the plant which are surrounded by photosynthetic cells and are covered by an epidermis.