| Ceratozamia | |
|---|---|
| |
| Ceratozamia mexicana | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Cycadophyta |
| Class: | Cycadopsida |
| Order: | Cycadales |
| Family: | Zamiaceae |
| Subfamily: | Zamioideae |
| Tribe: | Ceratozamieae D.W.Stev. |
| Genus: | Ceratozamia Brongn. |
| Type species | |
| Ceratozamia mexicana | |
| Synonyms[2] | |
| |
Ceratozamia is a genus of New World cycads in the family Zamiaceae. The genus contains 27 known currently living species and one or two fossil species. Most species are endemic to mountainous areas of Mexico, while few species extend into the mountains of Guatemala, Honduras and Belize.[2][3] The genus name comes from the Greek ceras, meaning horn, which refers to the paired, spreading horny projections on the male and female sporophylls of all species.[4][5]
Many species have extremely limited ranges, and almost all described species are listed as vulnerable, endangered, or critically endangered by the IUCN Red List. The whole genus is listed under CITES Appendix I / EU Annex A, which prohibits international trade in specimens of these species except when the purpose of the import is not commercial, for instance for scientific research. Illegal plant poaching has posed a major threat to Ceratozamia species.[6]
- ^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
- ^ a b "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". kew.org.
- ^ Hill, K.D. & Stevenson, D.W. (1999). A world list of Cycads, 1999. Excelsa 19: 67-72.
- ^ Standley, P. C. & J. A. Steyermark. 1958. Cycadaceae. In Standley, P.C. & Steyermark, J.A. (Eds), Flora of Guatemala – Part I. Fieldiana, Botany 24(1): 11–20.
- ^ Vovides, A. P., J. D. Rees & M. Vázquez-Torres. 1983. Zamiaceae. Flora de Veracruz 26: 1–31.
- ^ Christenhusz, M. J. M., J. L. Reveal, A. K. Farjon, M. F. Gardner, R. R. Mill & M. W. Chase. 2011. A new classification and linear sequence of extant gymnosperms. Phytotaxa 19: 55–70.