×Lapthops S.A.Hammer in Cact. Succ. J. (Los Angeles) 67: 172. 1995 ×Lapthops S.A.Hammer in Cact. Succ. J. (Los Angeles) 67: 172. 1995Taxon for this name×Lapthops S.A.Hammer in Cact. Succ. J. (Los Angeles) 67: 172. 1995