This name is a synonym of Cryptantha diffusa (Phil.) I.M.Johnst..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4002945) with original publication details: Anales Univ. Chile 90: 531 1895.
This name was in version 1 of The Plant List, record tro-4002945, and has not been changed.