This name is a synonym of Amorphophallus gracilior Hutch..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 8165) with original publication details: Expl. Bot. 653 1920.
This name was in version 1 of The Plant List, record kew-8165, and has not been changed.