×Harbotrya S.A.Hammer in Cact. Succ. J. (Los Angeles) 68(1): 8. 1996 ×Harbotrya S.A.Hammer in Cact. Succ. J. (Los Angeles) 68(1): 8. 1996Taxon for this name×Harbotrya S.A.Hammer in Cact. Succ. J. (Los Angeles) 68(1): 8. 1996×Harbotrya S.A.Hammer