Tetragonia ameghinoi Speg. in Anales Soc. Ci. Argent. 48: 52. 1899 Tetragonia ameghinoi Speg. in Anales Soc. Ci. Argent. 48: 52. 1899is basionym for Halophytum ameghinoi (Speg.) Speg. in Anales Mus. Nac. Buenos Aires 7: 153. 1902Taxon for this nameTetragonia ameghinoi Speg.