This name is a synonym of Philadelphus dasycalyx (Rehder) S.Y. Hu.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50077602) with original publication details: J. Arnold Arbor. 1(3): 197–198 1920.
This name was in version 1 of The Plant List, record tro-50077602, and has not been changed.