Ana y Maria estan estudiando plantas, Ana esta estudiando la familia Cneoraceae y Maria esta estudiando la familia Rutaceae.

¿A que familia pertenece la planta Cneorum tricoccon L.?
The family Cneoraceae includes plants with alternate, simple, and entire, coriaceous leaves, hermaphroditic, actinomorphic flowers that are either trimerous or tetramerous and hypogynous, grouped in cymes, and drupaceous fruit with a tricoccus.

In this family, there is only one genus, and that is Cneorum. It has three species in the Western Mediterranean, the Canary Islands, and Cuba.

Among these species is Cneorum tricoccon L., also known as olivillo.

Based on this information, we can conclude that the plant Cneorum tricoccon L. belongs to the family Cneoraceae.

Therefore, the answer is Cneoraceae.