This name is a synonym of Diplacus glutinosus (J.C.Wendl.) Nutt..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50004158) with original publication details: Bot. Beob. 51 1798.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:805952-1.
This name was in version 1 of The Plant List, record tro-50004158.