This name is a synonym of Colocasia gigantea (Blume) Hook.f..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 111946) with original publication details: Oesterr. Bot. Wochenbl. 7: 34 1857.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:87427-1.
This name was in version 1 of The Plant List, record kew-111946, and has not been changed.