This name is a synonym of Thyrsanthemum floribundum (M.Martens & Galeotti) Pichon.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 270348) with original publication details: Proc. Amer. Acad. Arts 33: 471 1898.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:256003-2.
This name was in version 1 of The Plant List, record kew-270348, and has not been changed.