This name is a synonym of Festuca linkiana subsp. mandonii (St.-Yves) Litard..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 25555584) with original publication details: Candollea 1: 55 1922.
This name was in version 1 of The Plant List, record tro-25555584.