Nomenclatural Updates in Varronia (Cordiaceae, Boraginales) from South America

Abstract

The genus Varronia P. Browne (Cordiaceae) currently comprises ca. 125 Neotropical species, occurring from the United States (Arizona) to Argentina, mainly in the northern Andean region, Mexico, and Brazil (Miller, 2013). Since it was originally described by Browne (1756), Varronia has been treated in various ways: as a subgenus or section of Cordia and as a distinct genus. Borhidi et al. (1988) treated Varronia and published a list of new combinations. However, until the first decade of the 21st century, floristic works continued treating the species of Varronia under Cordia