Abstract
During the revision of Siphocampylus for the Flora of Argentina, we detected names which need lectotypification. As a result of our analysis of original materials and protologues, lectotypes are designated for the following names: S. fiebrigii var. intermedius, S. foliosus, S. foliosus var. minor, S. lorentzii, S. nemoralis, S. nemoralis var. grisebachii, S. nemoralis fo. hieronymi, S. orbignianus, and S. verticillatus.