This name is a synonym of Micromeria filiformis (Aiton) Benth..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 460482) with original publication details: Treb. Inst. Catalana Hist. Nat. 3: 193 1917.
This name record (from WCSP) 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 Micromeria filiformis in version 1 of The Plant List.