This name is a synonym of Mentzelia torreyi var. acerosa (M.E. Jones) Barneby.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50088061) with original publication details: Contr. W. Bot. 17: 30 1930.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:157378-2.
This name was in version 1 of The Plant List, record tro-50088061.