Leptochilus (plant)

Leptochilus is a fern genus in the family Polypodiaceae, subfamily Microsoroideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[1]

Leptochilus
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Suborder: Polypodiineae
Family: Polypodiaceae
Subfamily: Microsoroideae
Genus: Leptochilus
Kaulf.[1]
Species

See text.

Synonyms[1]
  • Colysis C.Presl
  • Kontumia S.K.Wu & K.L.Phan

Taxonomy

A molecular phylogenetic study of the subfamily Microsoroideae in 2019 suggested that the genus was monophyletic, being sister to Microsorum, together forming one of the three main clades in the subfamily:[2]

Microsoroideae
 
 
 

Lepisorus s.l. (7 genera in the PPG I system)

 
 
 

Microsorum

 
 

Leptochilus

 
 
 
 

lecanopteroid genera (4 genera)

 
 
 

Goniophlebium

 
 

Species

The Pteridophyte Phylogeny Group classification of 2016 (PPG I) suggests that the genus contains about 10 species.[1] As of February 2020, the Checklist of Ferns and Lycophytes of the World noted that the species circumscription was "fairly controversial and fluctuating", and accepted 34 species and hybrids:[3]

  • Leptochilus axillaris (Cav.) Kaulf.
  • Leptochilus bolsteri (Copel.) Parris
  • Leptochilus cantoniensis (Baker) Ching
  • Leptochilus chilangensis (V.N.Tu) Liang Zhang & Li Bing Zhang
  • Leptochilus chingii Liang Zhang & Li Bing Zhang
  • Leptochilus chittagongensis Fraser-Jenk. & Gias
  • Leptochilus decurrens Blume
  • Leptochilus digitatus (Baker) Noot.
  • Leptochilus dissimilialatus (Bonap.) Liang Zhang & Li Bing Zhang
  • Leptochilus dolichopterus (Copel.) Fraser-Jenk. & Amoroso
  • Leptochilus ellipticus (Thunb.) Noot.
  • Leptochilus evrardii (Tardieu) Liang Zhang & Li Bing Zhang
  • Leptochilus flexilobus (Christ) Liang Zhang & Li Bing Zhang
  • Leptochilus fluviatilis (Lauterb.) Liang Zhang & Li Bing Zhang
  • Leptochilus hemionitideus (C.Presl) Noot.
  • Leptochilus henryi (Baker) X.C.Zhang
  • Leptochilus heterophyllus (S.K.Wu & P.K.Lôc) comb. ined.
  • Leptochilus insignis (Blume) Fraser-Jenk.
  • Leptochilus lanceolatus Fée
  • Leptochilus leveillei (Ching) X.C.Zhang
  • Leptochilus macrophyllus (Blume) Noot.
  • Leptochilus mengsongensis M.X.Zhao
  • Leptochilus minor Fée
  • Leptochilus morsei (Ching) Fraser-Jenk.
  • Leptochilus × nepalensis Fraser-Jenk.
  • Leptochilus oblongus Li Bing Zhang, Liang Zhang & N.T.Lu
  • Leptochilus pedunculatus (Hook. & Grev.) Fraser-Jenk.
  • Leptochilus pentaphyllus (Baker) Liang Zhang & Li Bing Zhang
  • Leptochilus poilanei (C.Chr. & Tardieu) Liang Zhang & Li Bing Zhang
  • Leptochilus pothifolius (Buch.-Ham. ex D.Don) Fraser-Jenk.
  • Leptochilus pteropus (Blume) Fraser-Jenk.
  • Leptochilus saxicola (H.G.Zhou & Hua Li) Liang Zhang & Li Bing Zhang
  • Leptochilus × shintenensis (Hayata) Nakaike
  • Leptochilus wrightii (Hook.) X.C.Zhang

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. S2CID 39980610.
  2. 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, S2CID 208176686, retrieved 2020-02-11
  3. Hassler, Michael & Schmitt, Bernd (January 2020), "Leptochilus", Checklist of Ferns and Lycophytes of the World, Version 8.20, retrieved 2020-02-11


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