Bellis catalaunica Sennen (original description)
Blumea balansae Gagnep. accepted as Blumea membranacea DC. (original description)
Blumea chevalieri Gagnep. (original description)
Blumea eberhardtii Gagnep. (original description)
Blumea sagittata Gagnep. (original description)
Blumea sinapifolia Gagnep. accepted as Blumea sinuata (Lour.) Merr. (original description)
Blumea thorelii Gagnep. (original description)
Blumea tonkinensis Gagnep. accepted as Blumea henryi Dunn (original description)
Calotis gaudichaudii Gagnep. accepted as Calotis anamitica (Kuntze) Merr. (original description)
Centaurea sallentii Sennen (original description)
Conyza principis Gagnep. (original description)
Crepis bonii Gagnep. accepted as Ixeris polycephala Cass. (original description)
Crepis coronopus Gagnep. accepted as Ixeris polycephala Cass. (original description)
Crepis tonkinensis Gagnep. accepted as Launaea acaulis (Roxb.) Babc. ex Kerr (original description)
Cyathocline jacquemontii Gagnep. (original description)
Elephantopus bodinieri Gagnep. accepted as Elephantopus tomentosus L. (original description)
Emilia gaudichaudii Gagnep. (original description)
Glossogyne condorensis Gagnep. (original description)
Glossogyne integrifolia Gagnep. (original description)
Gynura barbareifolia Gagnep. (original description)
Gynura integrifolia Gagnep. accepted as Gynura pseudochina (L.) DC. (original description)
Myriactis delavayi Gagnep. (original description)
Pulicaria annamica Gagnep. accepted as Vernonia pulicarioides Gagnep (original description)
Senecio marceris Sennen (original description)
Thespis integrifolia Gagnep. (original description)
Thespis tonkinensis Gagnep. (original description)