Gymnocalycium stellatum (Speg.) Speg. in Anales Soc. Ci. Argent. 99: 142. 1925 Gymnocalycium stellatum (Speg.) Speg. in Anales Soc. Ci. Argent. 99: 142. 1925is new combination for Echinocactus stellatus Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 505. 1905Taxon for this nameGymnocalycium stellatum (Speg.) Speg.