Liverworts
Plants with obvious leaves
Leaves not spirally arranged
Leaves without ventral sacs
Leaves not complcate-bilobed or folded
Leaf toothed, lobed or spine-like but shape evident
Underleaves absent
Stems without papillae
Leaves round or lobed
Leaves rounded or crenulate
Shoots prostrate
Leaf surface smooth
Leaves translucent
Leaves made up of many cells