This name is a synonym of Pinus pseudostrobus var. apulcensis (Lindl.) Shaw.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 380681) with original publication details: Edwards's Bot. Reg. 25(Misc.): 63 1839.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:309646-2.
This name was in version 1 of The Plant List, record kew-2563508.