Cycadidae

Subclass of cycads

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

* Cycadaceae Pers. 1807
* Zamiaceae Horan. 1834

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.

## Phylogeny

[edit]

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

| Equisetopsida |

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Marchantiidae

|

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Bryidae

|

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|  |

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Anthocerotidae

|

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Lycopodiidae

|

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|  |

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Equisetidae

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Marattiidae

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Ophioglossidae

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Polypodiidae

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Cycadidae

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Ginkgoidae

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Gnetidae

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Pinidae

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Magnoliidae

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bryophytes

lycopodiophytes

monilophytes

gymnosperms

angiosperms

## References

[edit]

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.

Taxon identifiers

Cycadidae|

* Wikidata: Q5197912
* APNI: 225054
* ITIS: 954913
* NCBI: 1445963
* Open Tree of Life: 7579470
* Tropicos: 50324774
* WoRMS: 886442

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