''Cheiroglossa'' is a genus of

fern The ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular, i.e., having specialized tissue ...

in the family

Ophioglossaceae Ophioglossaceae, from Ancient Greek ὄφις (''óphis''), meaning "snake", and γλῶσσα (''glôssa''), meaning "tongue", also known as the adder's-tongue family, is a small family of ferns. In the Pteridophyte Phylogeny Group classificatio ...

, subfamily Ophioglossoideae, with two species. Although recognized as a separate genus in the

Pteridophyte Phylogeny Group The Pteridophyte Phylogeny Group (PPG) is an informal international group of systematic botanists who collaborate to establish on the classification of pteridophytes ( lycophytes and ferns) that reflects knowledge about plant relationships discove ...

classification of 2016 (PPG I), other sources regard it as a

synonym A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are a ...

of the genus ''

Ophioglossum ''Ophioglossum'', the adder's-tongue ferns, is a genus of about 50 species of ferns in the family Ophioglossaceae. The genus name comes from Ancient Greek ὄφις (''óphis''), meaning "snake", and γλῶσσα (''glôssa''), meaning "tongue". ...

''.

Species

, the Checklist of Ferns and Lycophytes of the World accepts two species: *''

Cheiroglossa malgassica ''Cheiroglossa'' is a genus of fern in the family Ophioglossaceae, subfamily Ophioglossoideae, with two species. Although recognized as a separate genus in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), other sources regard it as ...

'' (C.Chr.) Pic.Serm. *'' Cheiroglossa palmata'' (L.) Presl

References

Ophioglossaceae Fern genera {{Fern-stub