This name is a synonym of Ranunculus monophyllus Ovcz..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 27105051) with original publication details: Trudy Imp. S.-Peterburgsk. Bot. Sada 4(1): 16 1876.
This name was in version 1 of The Plant List, record tro-27105051.