Cycadidae

Cycadidae is a subclass of Equisetopsida in the sense used by Mark W. Chase and James L. Reveal in their 2009 article "A phylogenetic classification of the land plants to accompany APG III."[1] This subclass comprises the cycads, which include the two families Cycadaceae and Zamiaceae.

Cycadidae
Scientific classification
Kingdom:
Plantae
Class:
Equisetopsida
Subclass:
Cycadidae

Pax in K.A.E.Prantl 1894
Order:
Cycadales

Pers. ex Bercht. & J.Presl 1820
Families

Phylogeny

The following diagram shows a likely phylogenic relationship between subclass Cycadidae and the other Equisetopsida subclasses.[2]

Equisetopsida
 
 
 
 
 
 
 
 

Marchantiidae

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Bryidae

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Anthocerotidae

 
 
 
 
 
 
 
 
 
 
 
 

Lycopodiidae

 
 
 
 
 
 
 
 
 
 

Equisetidae

 
 
 
 

Ophioglossidae

 
 
 
 

Marattiidae

 
 
 
 

Polypodiidae

 
 
 
 
 
 
 
 

Cycadidae

 
 

Ginkgoidae

 
 
 
 

Gnetidae

 
 

Pinidae

 
 
 
 
 
 

Magnoliidae

 
 
 
 
 
 
 
 
 

References
  1. Mark W. Chase; James L. Reveal (2009). "A phylogenetic classification of the land plants to accompany APG III". Botanical Journal of the Linnean Society. 161: 122–127. doi:10.1111/j.1095-8339.2009.01002.x.
  2. Maarten J. M. Christenhusz; James L. Reveal; Aljos Farjon; Martin F. Gardner; Robert R. Mill; Mark W. Chase (2011). "A new classification and linear sequence of extant gymnosperms" (PDF). Phytotaxa. 19: 55–70.


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