Peruvocereus albicephalus var. armatus Akers in Cact. Succ. J. (Los Angeles) 19: 163. 1947 Peruvocereus albicephalus var. armatus Akers in Cact. Succ. J. (Los Angeles) 19: 163. 1947Taxon for this namePeruvocereus albicephalus var. armatus Akers