Anthemis extrarosularis Freyn accepted as Cota melanoloma (Trautv.) Holub (original description)
Anthemis sintenisii Freyn (original description)
Centaurea ramosissima Freyn & Sint. ex Freyn accepted as Centaurea patula DC. (original description)
Centaurea tossiensis Freyn & Sint. ex Freyn (original description)
Cousinia stapfiana Freyn & Sint. ex Freyn (original description)
Crepis moesiaca Degen & Baldacci (original description)
Echinops bipinnatus Freyn & Sint. (original description)
Hieracium amphibolum Rehm. (original description)
Hieracium anatolicum Freyn & Sint. (original description)
Hieracium gelmianum Sarnth. accepted as Hieracium pallescens subsp. gelmianum (Sarnth.) Gottschl. (original description)
Hieracium longipes Freyn & Sint. accepted as Hieracium praelongipes Zahn (original description)
Hieracium nudiceps Pernh. (original description)
Hieracium paphlagonicum Freyn & Sint. accepted as Hieracium chalcidicum subsp. paphlagonicum (Freyn & Sint.) Greuter (original description)
Hieracium seckauense Pernh. (original description)
Hieracium transiens (Freyn) Freyn (original description)
Hieracium tuberculatum Freyn (original description)
Phaeopappus macrocephalus Freyn & Sint. (original description)
Rodigia gracilis Freyn & Sint. accepted as Crepis commutata (Spreng.) Greuter (original description)