This name is a synonym of Ranunculus cardiophyllus Hook..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50078125) with original publication details: Proc. Amer. Acad. Arts 21(2): 370–371 1886.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:217158-2.
This name was in version 1 of The Plant List, record tro-50078125, and has not been changed.