In preparation for the treatment of Arctotis L. (Asteraceae) in the upcoming Conspectus of the Trans-Cape Succulent Karoo Flora of South Africa, the typification of names and synonymy for nine Arctotis species that occur within the Succulent Karoo region, South Africa, are clarified. The author citation for A. argentea is corrected from Thunb. to A. argentea Aiton, and the lectotype is selected. In addition, lectotypes are designated for A. auriculata Jacq., A. campanulata DC., A. campanulata var. puberula DC., A. canescens DC., A. cineraria Jacq., A. cuprea Jacq., A. denudata Thunb., A. diffusa Thunb., A. fastuosa Jacq., A. flaccida Jacq., A. flammea Jacq., A. glabrata Jacq., A. laevis Thunb., A. leucanthemoides Jacq., A. maximilianii Schltr. ex Beauverd, A. pusilla DC., A. revoluta Jacq., A. rosea Jacq., A. squarrosa Jacq., A. venidioides DC., and Venidium aureum DC.