Data from: Two new synonyms for Heteranthera Ruiz & Pavón (Pontederiaceae)

Hydrothrix and Scholleropsis, two segregate monospecific genera placed within Heteranthera s.l. clade, are here transferred to Heteranthera based on phylogenetic and morphological data. A brief discussion on Heteranthera s.l. morphology and its species affinities are given, along with the designation of lectotypes for the two new transfers are presented.