This name is a synonym of Pseudotsuga menziesii var. glauca (Beissn.) Franco.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 386567) with original publication details: Bull. Soc. Hist. Nat. Toulouse 66: 342 1934.
This name was in version 1 of The Plant List, record kew-2872648.