This name is a synonym of Zantedeschia aethiopica (L.) Spreng..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 144777) with original publication details: New Fl. 2: 90 1837.
This name was in version 1 of The Plant List, record kew-144777, and has not been changed.