This name is a synonym of Tibouchina heteromalla (D. Don) Cogn..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50187192) with original publication details: Mem. Wern. Nat. Hist. Soc. 4: 295 1823.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:574812-1.
This name was in version 1 of The Plant List, record tro-50187192, and has not been changed.