This name is a synonym of Crepidifolium tenuifolium (Willd.) Sennikov.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 89C0967A-DB99-483B-85E7-A732D4E013A0) with original publication details: Revis. Gen. Pl. 1: 346 346 1891.
This name was in version 1 of The Plant List, record gcc-106177.