This name is a synonym of Cryptantha alyssoides (DC.) Reiche.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Anales Univ. Chile 43: 517 1873.
This name was in version 1 of The Plant List, record kew-2797755, and has not been changed.