This name is a synonym of Vietnamosasa pusilla (A.Chev. & A.Camus) T.Q.Nguyen.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as a spelling variant (record 404551) with original publication details: J. Arnold Arbor. 6: 151 1925.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:395728-1.
This name was in version 1 of The Plant List, record kew-404551, and has not been changed.