This name is a synonym of Romulea flava (Lam.) M.P.de Vos.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 100365992) with original publication details: Linnaea 34: 655 1866.
This name record (from Tropicos) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Geissorhiza pudica in version 1 of The Plant List.