Submatucana myriacantha (Vaupel) Backeb., Cactaceae 2: 1063. 1959 Submatucana myriacantha (Vaupel) Backeb., Cactaceae 2: 1063. 1959is new combination for Echinocactus myriacanthus Vaupel in Bot. Jahrb. Syst. 50(2-3, Beibl. 111): 25. 1913Taxon for this nameSubmatucana myriacantha (Vaupel) Backeb.