Ophioglossidae

Ophioglossidae
Botrychium lunaria
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Subclass:	Ophioglossidae Klinge 1882[1]
Type genus
Ophioglossum L.
Orders
Ophioglossales Psilotales
Synonyms
Psilotopsida

Ophioglossidae is one of the four subclasses of Polypodiopsida (ferns). This subclass consists of 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] The subclass contains two orders, Psilotales and Ophioglossales, whose relationship was only confirmed by molecular phylogenetic studies.