A plant having a body is referred to as a gametophyte. It is generally dichotomously branched and can be thalloid, meaning it can be flat or spiral in form. Marchantia, for example, is responsible for the plant's adhesion to the earth.
Asexual reproductive organs form on the top section of the thallus, near the ends of its branches, and are responsible for fertilisation.
They develop different branches on the gametophyte in certain cases, such as Marchantia, which are known as antheridiophores and archegoniophores, respectively.
Unlike other plants, liverworts have specialized implementing cells like cuticles and stomatas, and their rhizoids have always been unicellular in form.
Liverworts are the tiniest living plants, with leafy filaments as tiny as 0.02 in (0.5 mm) in diameter and plants up to 8 in (20 cm) in diameter.
In the majority of species, gametophytes grow directly from spores.