This name is a synonym of Deutzia maximowicziana Makino.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Diagn. Pl. Nov. Asiat. 8: 36 1893.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:790856-1.
This name was in version 1 of The Plant List, record kew-2763272, and has not been changed.