Cardaria, Coronopus, and Stroganowia Are United with Lepidium (Brassicaceae)

Abstract

The genera Cardaria (including / / vmenophysa), Coronopus, and Stroganowia are hard¬ ly distinct morphologically from the larger h'pidium, and t he distinctions of all four genera are based solely on a few fruit characters of doubtful value.Recent molecular data strongly suggest that the genera Coronopus and Stroganowia are polyphyletic and, together with Cardaria, are nested within Lepidium.Therefore, they are herein for¬ mally united with Lepidium, the earliest published generic name in this group.The new names L. appelianum, L. botschantsevianum , L. buschianum, L. karelinianum, and L. mummenhoffianum are pro¬ posed because the transfer of their replaced names to Lepidium would create later homonyms.The fol¬ lowing 20 new combinations are proposed: L.