Aspilia eckendorffii Philipson (original description)
Aspilia pallida Philipson accepted as Aspilia rudis subsp. fontinaloides C.D.Adams (original description)
Centaurea imatongensis Philipson accepted as Ochrocephala imatongensis (Philipson) Dittrich (original description)
Centaurea leucantha (Coss.) Philipson accepted as Volutarella leucantha Coss. (original description)
Centaurea saltii Philipson accepted as Volutaria abyssinica (Sch.Bip. ex A.Rich.) C.Jeffrey ex Cufod. (original description)
Centaurea tisserantii Philipson accepted as Centaurea praecox Oliv. & Hiern (original description)
Elephantopus pilosus Philipson accepted as Elephantopus mollis Kunth (original description)
Melanthera letestui Philipson accepted as Melanthera pungens var. pungens Oliv. & Hiern (original description)
Sonchus quercifolius Philipson accepted as Lactuca lasiorhiza (O.Hoffm.) C.Jeffrey (original description)