Trichocereus macrogonus (Salm-Dyck) Riccob. in Boll. Reale Orto Bot. Palermo 8: 236. 1909
Trichocereus macrogonus in Boll. Reale Orto Bot. Palermo 8: 236. 1909
is new combination for Cereus macrogonus, Cact. Hort. Dyck., ed. 1849: 203. 1850
Trichocereus macrogonus in Boll. Reale Orto Bot. Palermo 8: 236. 1909