Cheiroglossa

Cheiroglossa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Ophioglossales
Family: Ophioglossaceae
Subfamily: Ophioglossoideae
Genus: Cheiroglossa
C.Presl
Type species
Cheiroglossa palmata
(L.) Presl
Species
  • C. malgassica (C.Chr.) Pic.Serm.
  • C. palmata (L.) Presl

Cheiroglossa is a genus of fern in the family Ophioglossaceae, subfamily Ophioglossoideae, with two species.

Taxonomy

The genus was first described by Carl Borivoj Presl in 1845. He separated it from Ophioglossum in the sense of Linnaeus by its dangling epiphytic habit, simple veins, and the appearance of multiple sporophores at the margin.

The Smith et al. classification of 2006, based on molecular phylogeny, lumped Cheiroglossa within Ophioglossum, in the Ophioglossaceae. The Christenhusz et al. classification of 2011 maintained it as a separate genus within Ophioglossaceae, as did the Pteridophyte Phylogeny Group classification of 2016 (PPG I), while it was returned to the synonymy of Ophioglossum by the Christenhusz and Chase classification of 2014. The PPG I classification additionally assigns it to subfamily Ophioglossoideae, which corresponds to the circumscription of Ophioglossum used in Christenhusz and Chase.

Species

As of October 2026, the Checklist of Ferns and Lycophytes of the World and World Flora Online recognize two species in Cheiroglossa. Plants of the World Online recognizes these two species in a broadly circumscribed Ophioglossum.

References

  1. ↑ Presl, Carolo B. (1845). Supplementum tentaminis pteridographiae (in Latin). Prague: Filiorum Amadei Haase. p. 56.
  2. ↑ Smith, Alan R.; Pryer, Kathleen M.; Schuettpelz, Eric; Korall, Petra; Schneider, Harald; Wolf, Paul G. (2006). "A classification for extant ferns" (PDF). Taxon. 55 (3): 705–731. doi:10.2307/25065646. JSTOR 25065646.
  3. ↑ Christenhusz, Maarten J. M.; Zhang, Xian-Chun; Schneider, Harald (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa. 19: 7–54. doi:10.11646/phytotaxa.19.1.2.
  4. 1 2 PPG I (2016). "A community-derived classification for extant lycophytes and ferns". Journal of Systematics and Evolution. 54 (6): 563–603. Bibcode:2016JSyEv..54..563.. doi:10.1111/jse.12229. S2CID 39980610.
  5. 1 2 Christenhusz, Maarten J.M.; Chase, Mark W. (2014). "Trends and concepts in fern classification". Annals of Botany. 113 (9): 571–594. doi:10.1093/aob/mct299. PMC 3936591. PMID 24532607.
  6. ↑ Hassler, Michael. "Cheiroglossa". World Ferns. Retrieved 24 October 2026.
  7. ↑ "Cheiroglossa C.Presl". World Flora Online. Retrieved 24 October 2026.
  8. ↑ "Cheiroglossa C.Presl", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2026-10-24