Ophioglossidae

Ophioglossidae
Scientific classification
Kingdom:	Plantae
Class:	Equisetopsida
Subclass:	Ophioglossidae Klinge 1882
Orders
Ophioglossales Psilotales
Synonyms
Sphenopsida

Ophioglossidae 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 ferns commonly known as whisk ferns, grape ferns, adder's-tongues and moonworts. It is equivalent to the class Psilotopsida in previous treatments, including Smith et al., 2006.^[2] Chase and Reveal originally listed the separate subclass, Psilotidae Reveal 1996, in their 2009 paper,^[1] but Christenhusz et al., 2011, included both the Ophioglossales and Psilotales orders in the Ophioglossidae subclass.^[3]

Phylogeny

The following diagram shows a likely phylogenic relationship between subclass Ophioglossidae and the other Equisetopsida subclasses.

Equisetopsida  Marchantiidae   Bryidae   Anthocerotidae   Lycopodiidae   Equisetidae   Ophioglossidae   Marattiidae   Polypodiidae   Cycadidae   Ginkgoidae   Gnetidae   Pinidae   Magnoliidae

bryophytes lycopodiophytes monilophytes gymnosperms angiosperms

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. Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider & Paul G. Wolf (2006). "A classification for extant ferns" (PDF). Taxon 55 (3): 705–731. doi:10.2307/25065646.
3. Maarten J. M. Christenhusz, Xian-Chun Zhang & Harald Schneider (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa 19: 7–54.