Leptochilus (plant)

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

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:

Species
The Pteridophyte Phylogeny Group classification of 2016 (PPG I) suggests that the genus contains about 10 species. , 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:


 * 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