Frailea caespitosa (Speg.) Britton & Rose, Cactaceae 3: 211. 1922 Frailea caespitosa (Speg.) Britton & Rose, Cactaceae 3: 211. 1922is new combination for Echinocactus caespitosus Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 495. 1905Taxon for this nameFrailea caespitosa (Speg.) Britton & Rose