Trichocereus vollianus Backeb. in Backeberg & Knuth, Kaktus-ABC: 205, 412. 1936
Trichocereus vollianus in Backeberg & Knuth, Kaktus-ABC: 205, 412. 1936
is basionym for Soehrensia volliana in Cactaceae Syst. Init. 28: 31. 2012
Trichocereus vollianus in Backeberg & Knuth, Kaktus-ABC: 205, 412. 1936