This name is a synonym of Ranunculus serpens subsp. nemorosus (DC.) G.López.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Ann. Soc. Linn. Lyon n.s., 7: 447 1861.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:712179-1.
This name was in version 1 of The Plant List, record kew-2524223, and has not been changed.