Hereditas, res hereditariae, ius heredis. L'oggetto della compravendita di eredità in D. 18.4.2 (Ulp., 59 ad Sabinum).

What in hereditatis venditio exactly venditor sells and emptor buys? Hereditas, res hereditariae or ius heredis? Mario Talamanca’s tesis of ius heredis, based on dogmatic arguments, is now proved in front of passages collected in D. 18.4. Jurists always say hereditas or res hereditariae; never ius heredis. But only if venditor sells ius heredis (and not hereditas or res hereditariae) we can explain why he doesn't warrant about the risk of evictio of singulae res hereditariae or hereditas.