This name is a synonym of Thymus doerfleri Ronniger.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 204930) with original publication details: Razpr. Slov. Akad. Znan. Umet., Razr. Prir. Vede 31: 171 1990.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:974770-1.
This name was in version 1 of The Plant List, record kew-204930, and has not been changed.