This name is a synonym of Heterotis rotundifolia (Sm.) Jacq.-Fél..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 20304874) with original publication details: Mem. Wern. Nat. Hist. Soc. 4(2): 291 1823.
This name was in version 1 of The Plant List, record tro-20304874, and has not been changed.