Acanthoxanthium (DC.) Fourr. accepted as Xanthium L. (original description)
Acanthoxanthium spinosum (L.) Fourr. accepted as Xanthium spinosum L. (original description)
Acrolophus mierghii Fourr. accepted as Centaurea paniculata L. (original description)
Acrolophus rigidulus Fourr. accepted as Centaurea paniculata L. (original description)
Acrolophus subalbidus Fourr. accepted as Centaurea stoebe L. (original description)
Acrolophus tenuisectus Fourr. accepted as Centaurea stoebe L. (original description)
Aegoseris leontodontoides Fourr. accepted as Crepis leontodontoides All. (original description)
Aegoseris setosa (Haller f.) Fourr. accepted as Crepis setosa Haller f. (original description)
Aegoseris suffreniana Fourr. accepted as Crepis suffreniana (DC.) Steud. (original description)
Asterothrix crispa Fourr. accepted as Leontodon crispus Vill. (original description)
Cephalonoplos (Neck. ex DC.) Fourr. accepted as Cirsium Mill. (original description)
Cephalonoplos arvensis (L.) Fourr. accepted as Cirsium arvense (L.) Scop. (original description)
Chiliadenus glutinosus (L.) Fourr. (original description)
Conforata caesalp. ex Fourr. accepted as Achillea L. (original description)
Conforata ageratum Fourr. accepted as Achillea ageratum L. (original description)
Cyanus intermedius Fourr. accepted as Crupina intermedia (Mutel) Walp. (original description)
Cyanus lugdunensis (Jord.) Fourr. (original description)
Erioclepis Fourr. (original description)
Gamochaeta sylvatica (L.) Fourr. accepted as Omalotheca sylvatica (L.) Sch.Bip. & F.W.Schultz (original description)
Gifola canescens (Jord.) Fourr. accepted as Filago germanica (L.) Huds. (original description)
Gifola lutescens (Jord.) Fourr. accepted as Filago lutescens Jord. (original description)
Glebionis segetum (L.) Fourr. (original description)
Homalotheca supina Fourr. (original description)
Klasea nudicaulis (L.) Fourr. (original description)
Lepicaune blattarioides (L.) Fourr. accepted as Crepis pyrenaica (L.) Greuter (original description)
Lepidoseris (H. G. L. Reichenbach) Fourr. (original description)
Lepidoseris recognita Fourr. (original description)
Lepidoseris taraxacifolia Fourr. (original description)
Lepteranthus acutifolius Fourr. (original description)
Lepteranthus comatus Fourr. (original description)
Lepteranthus fuscatus Fourr. (original description)
Lepteranthus pectinatus Fourr. (original description)
Lepteranthus rufescens Fourr. (original description)
Lepteranthus supinus Fourr. (original description)
Limnocrepis Fourr. accepted as Crepis L. (original description)
Limnocrepis paludosa (L.) Fourr. accepted as Crepis paludosa (L.) Moench (original description)
Lopholoma alpestris Fourr. (original description)
Millefolium compactum Fourr. (original description)
Millefolium nobile Fourr. (original description)
Millefolium odoratum Fourr. (original description)
Millefolium setaceum Fourr. (original description)
Millefolium tomentosum Fourr. (original description)
Oligosporus glutinosus Fourr. (original description)
Phaenixopus chondrilliflorus Fourr. (original description)
Platylophus nemoralis Fourr. (original description)
Platylophus obscurus Fourr. (original description)
Psanacetum annuum Fourr. (original description)
Seridia praetermissa Fourr. (original description)
Seriphidium (Besser ex Less.) Fourr. accepted as Artemisia L. (original description)
Sonchoseris Fourr. accepted as Sonchus L. (original description)
Sonchoseris arvensis Fourr. accepted as Sonchus arvensis L. (original description)
Sonchoseris decora Fourr. accepted as Sonchus arvensis L. (original description)
Sonchoseris maritima Fourr. accepted as Sonchus maritimus L. (original description)
Sonchoseris palustris Fourr. (original description)
Streckera tuberosa Fourr. (original description)
Succisocrepis Fourr. accepted as Crepis L. (original description)
Succisocrepis succisifolia Fourr. (original description)
Triplocentron solstitiale Fourr. (original description)
Xeroloma inapertum Fourr. (original description)