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
Leaves transversely inserted