This name is a synonym of Adiantum lunulatum .
The record derives from Tropicos
(data supplied on )
which reports it as a synonym (record 26603277
) with original publication details: Dansk Bot. Ark. 7: 124 1932.
This name record (from Tropicos) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Adiantum philippense in version 1 of The Plant List.