This name is a synonym of Adiantum roborowskii var. taiwanianum (Tagawa) W.C. Shieh.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26617696) with original publication details: Acta Phytotax. Geobot. 4(2): 92–93 1935.
This name was in version 1 of The Plant List, record tro-26617696, and has not been changed.