Editing Ophioglossum (section)

==Phylogeny==
Phylogeny of ''Ophioglossum''<ref>{{cite journal |last1=Nitta |first1=Joel H. |last2=Schuettpelz |first2=Eric |last3=Ramírez-Barahona |first3=Santiago |last4=Iwasaki |first4=Wataru |display-authors=et al. |year=2022 |title=An Open and Continuously Updated Fern Tree of Life |journal=Frontiers in Plant Science |volume=13 |issue= |page= 909768| doi=10.3389/fpls.2022.909768 |pmid= 36092417|pmc= 9449725|bibcode= 2022FrPS...1309768N|doi-access=free}}</ref><ref>{{cite web|last1= |first1= |last2= |display-authors=et al. |year=2023 |title=Tree viewer: interactive visualization of FTOL |url=https://fernphy.github.io/viewer.html |version=FTOL v1.6.0 [GenBank release 259] |access-date=27 July 2024}}</ref>
{{Clade | style=font-size:90%;line-height:80%;width:600px
|label1=''Ophioglossum''
|sublabel1=s.l.
|1={{Clade
  |1={{Clade
    |1={{Clade
      |1={{Clade
        |label1=(''[[Rhizoglossum]]'') 
        |1=''[[Rhizoglossum bergianum|O. bergianum]]'' {{Au|Schltdl.}}
         }}
      |2={{Clade
        |label1=''Ophioglossum'' 
        |sublabel1=section ''Aitchisonii''
        |1=''[[Ophioglossum polyphyllum|O. polyphyllum]]'' {{Au|A.Braun}} (Large adder’s tongue)
        |label2=(''Whittieria'')
        |2=''[[Ophioglossum engelmannii|O. engelmannii]]'' {{Au|Prantl}} (Limestone adder's tongue)
         }}
       }}
    |2={{Clade
    |label1=(''Goswamia'')
    |1={{Clade
      |1=''[[Ophioglossum trilokinathii|O. trilokinathii]]'' {{Au|B.L.Yadav, Meghvansi, Meena & Gena}}
      |2={{Clade
        |1={{Clade
          |1=''[[Ophioglossum gomezianum|O. gomezianum]]'' {{Au|Welw. ex A.Braun}}
          |2={{Clade
            |1=''[[Ophioglossum costatum|O. costatum]]'' {{Au|R.Br}}
            |2=''[[Ophioglossum eliminatum|O. eliminatum]]'' {{Au|Khand. & Goswamy}}
             }}
           }}
        |2={{Clade
          |1=''[[Ophioglossum nudicaule|O. nudicaule]]'' {{Au|L.fil.}} (Slender/least adder’s tongue)
          |2={{Clade
            |1=''[[Ophioglossum lusoafricanum|O. lusoafricanum]]'' {{Au|Welw. ex Prantl}}
            |2={{Clade
              |1=''[[Ophioglossum lusitanicum|O. lusitanicum]]'' {{Au|L.}}
              |2=''[[Ophioglossum rubellum|O. rubellum]]'' {{Au|Welw. ex A.Braun}}
               }}
             }}
           }}
         }}
       }}
       }}
     }}
  |2={{Clade
    |1={{Clade
      |label1=(''Haukia'')
      |1=''[[Ophioglossum crotalophoroides|O. crotalophoroides]]'' {{Au|Walter}} (Bulbous adder's tongue) 
       }}
    |2={{Clade
      |label1=(''Kawamurae'')
      |1={{Clade
        |1=''[[Ophioglossum parvifolium|O. parvifolium]]'' {{Au|Hook. & Grev.}}
        |2={{Clade
          |1=''[[Ophioglossum kawamurae|O. kawamurae]]'' {{Au|Tagawa}}
          |2=''[[Ophioglossum parvum|O. parvum]]'' {{Au|M.Nishida & Kurita}}
           }}
         }}
      |label2=(''Ophioglossum'')
      |sublabel2=s.s.
      |2={{Clade
        |1={{Clade
          |1=''[[Ophioglossum namegatae|O. namegatae]]'' {{Au|M.Nishida & Kurita}}
          |2={{Clade
            |1=''[[Ophioglossum austroasiaticum|O. austroasiaticum]]'' {{Au|Nishida }}
            |2=''[[Ophioglossum pusillum|O. pusillum]]'' {{Au|Raf.}} (Northern adder's tongue)
             }}
           }}
        |2={{Clade
          |1=''[[Ophioglossum lancifolium|O. lancifolium]]'' {{Au|C.Presl}}
          |2={{Clade
            |1={{Clade
              |1=''[[Ophioglossum reticulatum|O. reticulatum]]'' {{Au|L.}} (Stalked adder's tongue)
              |2={{Clade
                |1=''[[Ophioglossum coriaceum|O. coriaceum]]'' {{Au|A.Cunn.}}
                |2=''[[Ophioglossum petiolatum|O. petiolatum]]'' {{Au|Hook.}}
                 }}
               }}
            |2={{Clade
              |1={{Clade
                |1=''[[Ophioglossum gramineum|O. gramineum]]'' {{Au|Willd.}}
                |2=''[[Ophioglossum thermale|O. thermale]]'' {{Au|Kom.}}
                 }}
              |2={{Clade
                |1=''[[Ophioglossum californicum|O. californicum]]'' {{Au|Prantl}} (California adder's tongue)
                |2=''[[Ophioglossum vulgatum|O. vulgatum]]'' {{Au|L.}} (Southern adder's tongue)
                 }}
               }}
             }}
           }}
         }}
       }}
     }}
   }}
}}

Unassigned species:<ref name=WF_g32>{{cite web |last=Hassler |first=Michael |date=2004–2021 |title=Genus ''Ophioglossum'' L. |work=World Ferns. Synonymic Checklist and Distribution of Ferns and Lycophytes of the World. Version 12.8 |access-date=2021-12-22 |url=https://www.worldplants.de/world-ferns/ferns-and-lycophytes-list#g-32}}</ref>
{{Div col|colwidth=24em}}
*(''Goswamia'')
**''[[Ophioglossum gujaratensis]]'' {{Au|S.M.Patil et al.}}
**''[[Ophioglossum hitkishorei]]'' {{Au|M.Patel & M.N.Reddy}}
**''[[Ophioglossum indicum]]'' {{Au|B.L.Yadav & H.K.Goswami}}
**''[[Ophioglossum isanensis]]'' {{Au|Petchsri, Li Bing Zhang & Jaruwatt.}}
**''[[Ophioglossum malviae]]'' {{Au|M.Patel & M.N.Reddy}}
**''[[Ophioglossum raphaelianum]]'' {{Au|Anto et al.}} 
*(''Haukia'')
**''[[Ophioglossum opacum]]'' {{Au|R.Br.}} 
**''[[Ophioglossum tuberosum]]'' {{Au|Hook. & Arn.}} 
*(''Ophioglossum'') s.s.
**''[[Ophioglossum ammophilum]]'' {{Au|C.D.Adams }} – sometimes included in ''O. gomezianum''
**''[[Ophioglossum azoricum]]'' {{Au|C.Presl}}
**''[[Ophioglossum caroticaule]]'' {{Au|J.E.Burrows}} 
**''[[Ophioglossum convexum]]'' {{Au|J.E.Burrows}}
**†''[[Ophioglossum eocenum]]'' <small>(Massalongo) Schimper</small>
**''[[Ophioglossum fernandezianum]]'' {{Au|C.Chr.}} – doubtful species
**[[Ophioglossum × giovanninii|''Ophioglossum'' × ''giovanninii'']] {{Au|Peruzzi, Pierini, Magrini, Marchetti & Viane}} 
**''[[Ophioglossum gracile]]'' {{Au|J.E.Burrows ex Pocock}} – may be included in ''O. gramineum''
**''[[Ophioglossum gracillimum]]'' {{Au|Welw. ex Hook. & Baker}} 
**†''[[Ophioglossum granulatum]]'' <small>Heer</small>
**''[[Ophioglossum harrisii]]'' {{Au|Underw.}} 
**''[[Ophioglossum jaykrishnae]]'' {{Au|S.M.Patil, S.K.Patel, Raole & K.S.Rajput }} – provisionally accepted name
**''[[Ophioglossum latifolium]]'' {{Au|(Prantl) J.E.Burrows}} 
**''[[Ophioglossum lineare]]'' {{Au|Schltr. & Brause}} – possibly a synonym of ''O. parvifolium''
**''[[Ophioglossum louisii]]'' {{Au|Taton}}
**''[[Ophioglossum loureirianum]]'' <small>Presl</small>
**''[[Ophioglossum melipillense]]'' {{Au|J.Rémy}} 
**''[[Ophioglossum oblongum]]'' {{Au|H.G.Zhou & H.Li}}
**†''[[Ophioglossum ornatum]]'' <small>Faddeeva</small>
**[[Ophioglossum × pierinii|''Ophioglossum'' × ''pierinii'']] {{Au|Peruzzi, Magrini, Marchetti & Viane}} 
**[[Ophioglossum × pseudoazoricum|''Ophioglossum'' × ''pseudoazoricum'']] {{Au|Peruzzi, Pierini, Magrini, Marchetti & Viane}} 
**''[[Ophioglossum richardsiae]]'' <small>Burrows</small>
**†''[[Ophioglossum senomanicum]]'' <small>Chlonova</small>
**''[[Ophioglossum sandieae]]'' {{Au|J.E.Burrows}} 
**''[[Ophioglossum scariosum]]'' {{Au|Clausen}} 
**''[[Ophioglossum thomasii]]'' {{Au|Clausen}} 
**''[[Ophioglossum yongrenense]]'' {{Au|Ching ex Z.R.He & W.M.Chu}}
{{Div col end}}

Species that may be placed in this genus include:<ref name=WF_g32/>
*''Ophioglossum falcatum'' {{Au|(Presl) Fowler}} = ''[[Ophioderma falcatum]]''
*''Ophioglossum intermedium'' {{Au|Hook.}} = ''[[Ophioderma intermedium]]''
*''Ophioglossum simplex'' {{Au|Ridley}} = ''[[Ophioderma simplex]]''