Lecanopteris

Lecanopteris is a genus of ferns in the family Polypodiaceae, subfamily Microsoroideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[1] They have swollen hollow rhizomes that provide homes for symbiotic ants. All are epiphytic plants that naturally occur from Southeast Asia to New Guinea.[2][3] Several species are in commerce,[4] being grown as houseplants and greenhouse curiosities.

Lecanopteris
Lecanopteris curtisii
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Suborder: Polypodiineae
Family: Polypodiaceae
Subfamily: Microsoroideae
Genus: Lecanopteris
Reinw.
Species

See text.

Taxonomy

Phylogeny

The monophyletic genus Lecanopteris has been divided into two sub-genera, Lecanopteris and Myrmecopteris. All the species have rhizomes associated with ants. Subgenus Lecanopteris was monophyletic, and Myrmecopteris was paraphyletic.[2][3] A 2019 molecular phylogenetic study suggested that the genus was related to three other clades, treated as genera, related as shown in the following cladogram.[5]

Lecanopteris s.l.
 

Bosmania

 
 
 

Dendroconche

 
 
 

Zealandia

 
 

Lecanopteris s.s.

 
 
 
 

As of February 2020, the Checklist of Ferns and Lycophytes of the World recognizes the segregate genera; other sources do not.

Species

As of February 2020, the Checklist of Ferns and Lycophytes of the World recognized the following species in Lecanopteris s.s.[6]

  • Lecanopteris balgooyi Hennipman
  • Lecanopteris carnosa (Reinw.) Blume
  • Lecanopteris celebica Hennipman
  • Lecanopteris crustacea Copel.
  • Lecanopteris darnaedii Hennipman
  • Lecanopteris deparioides (Ces.) Baker
  • Lecanopteris holttumii Hennipman
  • Lecanopteris luzonensis Hennipman
  • Lecanopteris mirabilis Copel.
  • Lecanopteris pumila Blume
  • Lecanopteris sarcopus (Teijsm. & Binn.) Copel.
  • Lecanopteris sinuosa (Wall. ex Hook.) Copel.
  • Lecanopteris spinosa Jermy & T.Walker
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gollark: Do you think the electoral college does not do this?
gollark: > Because in Michigan, those particular cities usually decide the votes due to their high population. I'm going to call it "favouring rural people" if they get more voting power than they would if it was proportional to actual population.
gollark: You could also call that a "representative democracy", but I don't think disputing definitions is helpful.

References
  1. PPG I (2016), "A community-derived classification for extant lycophytes and ferns", Journal of Systematics and Evolution, 54 (6): 563–603, doi:10.1111/jse.12229
  2. Gay, Honor (1993), "Rhizome structure and evolution in the ant‐associated epiphytic fern Lecanopteris Reinw. (Polypodiaceae)", Botanical Journal of the Linnean Society, 113 (2): 135–160, doi:10.1006/bojl.1993.1068
  3. Haufler, Christopher H.; Grammer, W. Andrew; Hennipman, E.; Ranker, Tom A.; Smith, Alan R. & Schneider, Harald (2003), "Systematics of the Ant-Fern Genus Lecanopteris (Polypodiaceae): Testing Phylogenetic Hypotheses with DNA Sequences", Systematic Botany, 28 (2): 217–227, JSTOR 3093992
  4. Stuart, Tom (2009), "Polypods exposed" (PDF), Bulletin of the American Fern Society, 36 (2 & 3): 9–25, retrieved 2020-06-23
  5. Testo, Weston L.; Field, Ashley R.; Sessa, Emily B. & Sundue, Michael (2019), "Phylogenetic and Morphological Analyses Support the Resurrection of Dendroconche and the Recognition of Two New Genera in Polypodiaceae Subfamily Microsoroideae" (PDF), Systematic Botany, 44 (4): 737–752, doi:10.1600/036364419X15650157948607, retrieved 2020-02-11
  6. Hassler, Michael & Schmitt, Bernd (January 2020), "Lecanopteris", Checklist of Ferns and Lycophytes of the World, Version 8.20, retrieved 2020-02-10


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