Anacyclus monanthos (L.) Thell. accepted as Flaveria bidentis (L.) Kuntze (original description)
Carthamus leucophaeus Thell. accepted as Carthamus leucocaulos Sm. (original description)
Centaurea delestrei (Spach) Thell. accepted as Mantisalca delestrei (Spach) Briq. & Cavill. (original description)
Chrysanthemum viscidi-hirtum Thell. (original description)
Erigeron flahaultianus Thell. accepted as Erigeron sumatrensis Retz. (original description)
Lagoseris marschalliana (Rchb.) Thell. accepted as Crepis sancta subsp. obovata (Boiss. & Noë) Babc. (original description)
Onopordum godronii Thell. (original description)
Pulicaria laciniata (Coss. & Durieu) Thell. (original description)