Centaurea brevi-appendiculata Gugler accepted as Centaurea spectabilis Sch.Bip. (original description)
Centaurea buhseana Gugler (original description)
Centaurea carlovensis Friv. ex Gugler accepted as Cyanus napulifer (Rochel) Soják (original description)
Centaurea centriflora Friv. ex Gugler accepted as Centaurea benedicta (L.) L. (original description)
Centaurea difficillima Gugler (original description)
Centaurea extranea Beck ex Gugler (original description)
Centaurea filarskyi Gugler (original description)
Centaurea fimbriatoides Gugler (original description)
Centaurea gallica Gugler accepted as Centaurea paniculata L. (original description)
Centaurea hastata Gugler accepted as Centaurea jacea L. (original description)
Centaurea hortigena Gugler (original description)
Centaurea hungarica Gugler accepted as Centaurea tauscheri A.Kern. (original description)
Centaurea jungens Gugler accepted as Centaurea jacea L. (original description)
Centaurea kachetica (Rehmann ex Boiss.) Rehm. ex Gugler accepted as Psephellus dealbatus (Willd.) K.Koch (original description)
Centaurea karloviensis Friv. ex Gugler accepted as Cyanus napulifer (Rochel) Soják (original description)
Centaurea media Gugler accepted as Centaurea jacea L. (original description)
Centaurea meissneri Friv. ex Gugler accepted as Centaurea lydia Boiss. (original description)
Centaurea nyhuusii Gugler (original description)
Centaurea parvispina Láng ex Gugler accepted as Centaurea solstitialis L. (original description)
Centaurea podolica Gugler (original description)
Centaurea sloupnicensis Gugler (original description)
Centaurea subarmata Gugler accepted as Centaurea scabiosa subsp. cephalariifolia (Willk.) Greuter (original description)
Centaurea syrmiensis Gugler accepted as Centaurea jacea L. (original description)
Centaurea thracica (Janka) Janka ex Gugler (original description)