This name is a synonym of Riccardia longiflora (Stephani) Hewson.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35200260) with original publication details: Sp. Hepat. 1: 256 1899.
This name was in version 1 of The Plant List, record tro-35200260, and has not been changed.