This name is a synonym of Philadelphus lewisii subsp. californicus (Benth.) Munz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50084168) with original publication details: Bot. California 1: 202 1876.
⥇ A cross-taxon basionym link was ignored while processing this record,
see Philadelphus californicus Benth..
This name was in version 1 of The Plant List, record tro-50084168.