This name is a synonym of Riccardia chamedryfolia f. major (Lindb.) Schljakov.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35200282) with original publication details: Sp. Hepat. 1: 258 1899.
This name was in version 1 of The Plant List, record tro-35200282, and has not been changed.