This name is a synonym of Ombrophytum subterraneum (Aspl.) B. Hansen.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 3000079) with original publication details: Bot. Jahrb. Syst. 76: 276, f. 1, t. 18 1954.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:131724-2.
This name was in version 1 of The Plant List, record tro-3000079, and has not been changed.