This name is a synonym of Phaeoceros gualaquizanus (Stephani) Gradst..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 35211392) with original publication details: Sp. Hepat. 5: 979 1916.
This name was in version 1 of The Plant List, record tro-35211392, and has not been changed.