Cryptomitrium tenerum
Cryptomitrium tenerum (Hook.) Austin ex Underw.

Cryptomitrium tenerum is a liverwort species found in North America and is the sole member of its genus in this region.
Description
Cryptomitrium tenerum (Hook.) Austin ex Underw. is a liverwort species in the family Aytoniaceae. It was first described in 1884 and is native to North America. This species is unique in that it is the only one within the genus Cryptomitrium to occur on the continent.
Synonyms
Marchantia teneraMannia subpilosaGrimaldia subpilosaDuvalia brevipedunculataDuvalia gayanaDuvalia teneraPlatycoaspis tenera