This name is a synonym of Micranthus tubulosus (Burm.f.) N.E.Br..
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 322740) with original publication details: Bot. Mag. 15: t. 523 1801.
This name was in version 1 of The Plant List, record kew-322740.