Abstract
We present two new combinations in species of the Spermacoceae tribe from South America: Spermacoce polygonifolia is transferred to genusMitracarpus and S. perijaensis toTobagoa. We propose a lectotype for Tobagoa maleolens and neotype for Diodia ottonis.
Key words:
lectotypification; Mitracarpus; Spermacoceae; Tobagoa