In this paper, we provide corrections to a recent synoptical revision of the family Onagraceae (Wagner et al., 2007). The first valid publication of subfamily Onagroideae was in 1834 by Eaton, and not in 2007 by Wagner et al. We correct the authorship and place of publication of Camissonia contorta (Douglas) P. H. Raven, Chylismia scapoidea (Torrey & A. Gray) Nuttall ex Raimann, and Camissonia chamaenerioides (A. Gray) P. H. Raven. We correct the authorship and typification of Oenothera suffulta (Engelmann ex A. Gray) W. L. Wagner & Hoch, as well as the typification of Chylismia claviformis subsp. lancifolia (A. Heller) W. L. Wagner & Hoch. Our new genus Holmgrenia W. L. Wagner & Hoch is a later homonym of a name validly published by S. O. Lindberg in 1863. We propose the replacement name of Neoholmgrenia W. L. Wagner & Hoch to correct this problem, and make the two species-level combinations, N. andina (Nuttall) W. L. Wagner & Hoch, and N. hilgardii (Greene) W. L. Wagner & Hoch.