Type notes: Neotype designated by Calonje & Sennikov in Taxon 66(1): 161. 2017. Neotype: Hort. Glasnevin, 21 Mar 1878 (accessioned 1881), D. Moore s.n. (K! leaf on three sheets, barcodes K000501714!, K000501712! & K000501713!; and megasporangiate strobilus preserved separately in liquid, K Economic Botany Collection Catalogue No. 29054!; all cross-labeled).
Nomenclatural notes: David Moore provisionally and therefore invalidly published the name Ceratozamia fuscoviridis in 1878. The name was subsequently accepted with a brief description the year after in one of William Bull's horticultural catalogues, resulting in its valid publication. Osborne et al. (in Delpinoa 48:5-10. 2006) intended to validate Moore’s C. fuscoviridis, a name that they
identified as applicable to a cycad occurring in the State of Hidalgo, Mexico. However, they were unaware of the protologue published by Bull and instead created an isonym with no nomenclatural status. See Calonje & Sennikov in Taxon 66(1): 158-164. 2017.
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