Ceratozamia miqueliana

González, José García, Pérez-Farrera, Miguel Á., Gutiérrez-Ortega, José Said, Vovides, Andrew P. & Jimenez, Pedro Díaz, 2023, Ceratozamia rosea (Zamiaceae): A new species from the Northern Mountains of Chiapas, Mexico, Phytotaxa 595 (1), pp. 73-88 : 84-85

Key of Ceratozamia miqueliana species complex

1.- Leaflets oblong to oblanceolate, leaves light green emergent............................................................................................................2

- Leaflets linear, lanceolate or long oblanceolate, pink or reddish-light emergent leaves....................................................................7

2.- Leaflets membranaceous ....................................................................................................................................................................3

- Leaflets papyraceous or coriaceous....................................................................................................................................................4

3.- Leaves emerging glossy to slightly glaucous lime green with non-glaucous to slightly glaucous petioles ................. C. hondurensis

- Leaves emerging glaucous pale light green to bluish with intensely glaucous petioles............................................. C. euryphyllidia

4.- Leaflets coriaceous .............................................................................................................................................................................5 - Leaflets papyraceous ..................................................................................................................................................... C. miqueliana

5. Leaflets subfalcate, oblong to widely oblanceolate........................................................................................................... C. becerrae

- Leaflets not subfalcate, oblanceolate..................................................................................................................................................6

6. Leaflets with visible veins, distance between leaflets 1.7–2.4 cm, female cones decumbent at maturity ...................... C. zoquorum

- Leaflets without visible veins, distance between leaflets 3.4–7.5 cm, female cones erect at maturity........................... C. santillanii

7.- Leaflets long oblanceolate, coriaceous, circinate vernation, emergent leaves Mexican pink................................................ C. rosea

- Leaflets linear to lanceolate, papyraceous, vernation inflexed, emergent leaves green or light reddish ...................... C. sancheziae