Lemaireocereus pruinosus (Otto ex Pfeiff.) Britton & Rose, Cactaceae 2: 88. 1920 Lemaireocereus pruinosus (Otto ex Pfeiff.) Britton & Rose, Cactaceae 2: 88. 1920is new combination for Echinocactus pruinosus Otto ex Pfeiff., Enum. Diagn. Cact.: 54. 1837Taxon for this nameLemaireocereus pruinosus (Otto ex Pfeiff.) Britton & Rose