This name is a synonym of Centaurea melanosticta (Lange) Franco.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D6DBA560-B4C1-4F7E-BAFF-3C2DB42901CE) with original publication details: Agron. Lusit. 11(1): 24 (1949) 24 1949.
This name was in version 1 of The Plant List, record gcc-32453.