This name is a synonym of Mansoa alliacea (Lam.) A.H.Gentry.
The record derives from iPlants which reports it as a synonym (record 317884) with original publication details: Rec. Trav. Bot. Néerl. 34: 210 1937.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:211250-2.