This name is a synonym of Adiantum chilense var. sulphureum (Kaulf.) Kuntze ex Hicken.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26604312) with original publication details: Sp. Pl. 2: 1560 1753.
This name was in version 1 of The Plant List, record tro-26604312.