This name is a synonym of Agave atrovirens Karw. ex Salm-Dyck.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 293672) with original publication details: Abh. Schles. Ges. Vaterl. Cult., Abth. Naturwiss. 1869: 147 1869.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:61866-1.
This name was in version 1 of The Plant List, record kew-293672.