This name is a synonym of Riccardia palmata (Hedw.) Carruth..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35187976) with original publication details: Comment. Bot. 115 1822.
This name was in version 1 of The Plant List, record tro-35187976, and has not been changed.