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 lobed, toothed or with spine-like hairs
Leaf margins with two or more spine-like hairs