This name is a synonym of Prunus serrulata Lindl..
The record derives from RJP
(data supplied on 2011-10-18)
which reports it as a synonym (record 13981) with original publication details: Hortus britannicus Hortus britannicus; 1830 (Suppl.) 480 1830.
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 Cerasus serrulata in version 1 of The Plant List.