Grusonia kellermanii (Rose) G.D.Rowley in Tephrocactus Study Group 12(3): 42. 2006 Grusonia kellermanii (Rose) G.D.Rowley in Tephrocactus Study Group 12(3): 42. 2006is new combination for Pereskiopsis kellermanii Rose in Smithsonian Misc. Collect. 50: 332. 1907Taxon for this nameGrusonia kellermanii (Rose) G.D.Rowley