This name is a synonym of Homalocephala texensis var. gourgensii (Cels ex Labouret) Y. Itô.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 5105231) with original publication details: Monogr. Cact. 196 1853.
This name was in version 1 of The Plant List, record tro-5105231.