Abstract
Senecio alatus var. nudicaulis, Sen. alatus var. elatus, Sen. triligulatus var. brevipedunculatus and Sen. triligulatus var. foliato-pedunculatus, the four infraspecific taxa overlooked since their publication, are clarified based on critical specimen examinations and in vivo observations. The former two are found to be conspecific with Synotis alata and thus should be merged with this species, while the latter two are identical with Syn. pentantha and hence are synonymized herein. Additionally, a lectotype is designated for Syn. alata, a species described on the basis of several syntypes.