This name is a synonym of Cryptantha oxygona (A.Gray) Greene.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Proc. Amer. Acad. Arts 19: 89 1883.
This name was in version 1 of The Plant List, record kew-2797870, and has not been changed.