This name is a synonym of Tulipa saxatilis subsp. bakeri (A.D.Hall) Zonn..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 289688) with original publication details: J. Bot. 76: 316 1938.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:542833-1.
This name was in version 1 of The Plant List, record kew-289688.