⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2711338, with some changes.

Ceratozamia mexicana var. longifolia (Miq.) Dyer is a synonym of Ceratozamia robusta Miq.

This name is a synonym of Ceratozamia robusta Miq..

The record derives from WCSP which reports it as a synonym (record 382790) with original publication details: Biol. Cent.-Amer., Bot. 3: 193 1884.