This name is a synonym of Taxodium distichum var. imbricatum (Nutt.) Croom.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 378594) with original publication details: Ann. Sci. Nat. (Paris) 30: 182 1833.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:263754-1.
This name was in version 1 of The Plant List, record kew-2434116.