Cicero called the Herms of Athena and Hercules, which Atticus had obtained in 67-65 BC for Cicero's Tusculanum (Cic. Att. 1,1; 4; 8; 9; 10), Hermathena and Hermeracles. The bronze heads were set on marble pillars and were considered an appropriate ornamentum for his peristyle, which was compared to the Academia and a gymnasium. These terms are Cicero's creation. Setting up Herms of this type in the gardens of Roman villas became a common practice.
R. Neudecker, Die Skulpturenausstattung röm. Villen in Italien, 1988, 11-18