Treated as synonyms, and Fusidium ranunculi has priority since E. ficariae prevents the combination of the earlier Cylindrosporium ficariae into Entyloma.
https://nt.ars-grin.gov/fungaldatabases/new_allView.cfm?whichone=Nomenclature&thisName=Entyloma%20ranunculi&fromallCount=true&organismtype=Fungus
https://link.springer.com/content/pdf/10.1007/BF00436839.pdf