Trichocereus microspermus (Werderm. & Backeb.) Borg, Cacti, ed. 1: 141. 1937
Trichocereus microspermus, Cacti, ed. 1: 141. 1937
is new combination for Cereus microspermus, Neue Kakteen: 80. 1931
Trichocereus microspermus, Cacti, ed. 1: 141. 1937