This name is a synonym of Medemia argun (Mart.) Wurttenb. ex H.Wendl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 14618) with original publication details: Ann. Sci. Nat. (Paris) 8: 420 1826.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:927719-1.
This name was in version 1 of The Plant List, record kew-14618, and has not been changed.