This name is a synonym of Prunus domestica subsp. insititia (L.) Bonnier & Layens.
The record derives from RJP
(data supplied on 2011-10-18)
which reports it as a synonym (record 5888) with original publication details: Flora analitica d'Italia Flora analitica d'Italia; 1896 558 1898.
This name record (from RJP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Prunus domestica in version 1 of The Plant List.