Anisocereus gaumeri (Britton & Rose) Backeb., Cactaceae 6: 2155. 1962 Anisocereus gaumeri (Britton & Rose) Backeb., Cactaceae 6: 2155. 1962is new combination for Pachycereus gaumeri Britton & Rose, Cactaceae 2: 71. 1920Taxon for this nameAnisocereus gaumeri (Britton & Rose) Backeb.