Acalypha wilderi is doubtfully distinct from A. raivavensis F.Br. (Florence 1997) and Acalypha tubuaiensis H.St.John, and at some stage they will be merged under the oldest available name A. wilderi (W.R. Sykes pers. comm. 2011). Obviously when this is done A. wilderi will no longer be globally extinct and a new threat assessment will be needed. In particular the conservation status of the island populations of both A. raivavensis and A. tubuaiensis (once merged in A. wilderi) will need to be determined as Florence (1997) indicates that neither is common.