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Liverworts
Plants with obvious leaves
Leaves not spirally arranged
Leaves without ventral sacs
Leaves not complicate-bilobed or folded
Leaf toothed, lobed or spine-like but shape
evident
Underleaves present
Leaves incubous
Most stem leaves with 4 lobes
Leaves clearly incubous or nearly
transversely inserted
Leaves clearly incubous
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