Typification of three Linnaean names in the Byttnerioideae (Malvaceae)

Types are designated for the names of three species of Byttnerioideae (Malvaceae) described by Linnaeus. These include lectotypes for the names Hermannia triphylla and Melochia supina (= M. corchorifolia), and a neotype for the name Theobroma augustum (equivalent to Abroma augustum). Two of the type designations are illustrations and one is a specimen. The identity of H. triphylla has long been uncertain but the lectotype designated here fixes the name as a species of papilionoid legume, which reflects current usage, and a new combination in Lotononis (Fabaceae) is proposed.