This name is a synonym of Caryocar glabrum subsp. parviflorum (A.C.Sm.) Prance & M.F.Silva.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 34652) with original publication details: J. Arnold Arbor. 20: 298 1939.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:47877-2.
This name was in version 1 of The Plant List, record kew-34652, and has not been changed.