During the preparation of the treatment of the family Cordiaceae for the Flora of Argentina project, some names were identified as requiring clarification following the Shenzhen Code. In this context, a lectotype is designated for Patagonula americana L. var. glabra Cham., a second-step lectotype for Varronia dichotoma Ruiz & Pav., and updates and supporting information for four names already typified by I. M. Johnston (Cordia guaranitica Chodat & Hassl., C. salicina DC., Lithocardium gerascanthus (L.) Kuntze var. puberulum Kuntze, and Saccellium lanceolatum Bonpl.) are provided. Furthermore, remarks on the type of P. tweediana Miers are provided.