Three Malesian species of Dendrobium are discussed regarding their typification and identity. Thus D. curvum is found to be based on a mixture and after lectotypification is proposed as the earlier name for D. rappardii; the previously obscure D. dactyliferum is found to be an earlier name for D. pandaneti; and D. triflorum is found to be a commonly misapplied name, which after typification is proposed as a synonym of D. geminatum.