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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