Editing Fritillaria (section)

=== Phylogeny ===

''Fritillaria'' is generally considered a [[monophyletic]] genus, placed within the [[tribe (biology)|tribe]] [[Lilieae]] ''[[s.s.]]'', where it is a [[sister group]] to ''Lilium''{{sfn|Rønsted et al|2005}} and the largest member of that tribe.{{sfn|Peruzzi et al|2017}} The [[evolutionary]] and [[phylogenetic]] relationships between the genera currently included in [[Liliaceae]] are shown in the following [[Cladogram]]:

{{cladogram
| title={{anchor|Clad3}}Cladogram: [[Phylogeny]] and [[biogeography]] of the genera of the Liliaceae
| caption=Phylogenetic tree reflecting relationships based on molecular phylogenetic evidence.{{sfn|Patterson|Givnish|2002}}{{sfn|Vinnersten|Bremer|2001}}{{sfn|Peruzzi et al|2009}}{{sfn|Leitch et al|2007}}{{sfn|Meerow|2012}}<ref name=APW/>{{sfn|Kim et al|2013a}}{{sfn|Kim et al|2013b}}{{sfn|Rønsted et al|2005}}<br>*=Liliaceae ''sensu'' Tamura; EA=[[Eurasia]] NA=[[North America]]
| align=center
| cladogram={{clade|style=font-size:92%;line-height:100%;width:500px;

|label1= [[Liliaceae]]
|1={{clade

     | 1={{clade
     |label1= West NA
         | 1={{clade
         |label1=
         | 1=''[[Tricyrtis]]''
         | 2={{clade

            |label1= [[Streptopoideae]]

            | 1={{clade
               |label1=
               | 1=''[[Streptopus]]''
               |label2=
               | 2={{clade
                   | 1=''[[Prosartes]]''
                   | 2=''[[Scoliopus]]''
                   }}
               }}

            }}
          }}
       }}

     | 2={{clade
          |label1=West NA
          | 1=''[[Calochortus]]''
          |label2= [[Lilioideae]]*
          |sublabel2=East NA EA
          | 2={{clade
             |label1=[[Medeoleae]]
             |sublabel1=East NA
             | 1={{clade
                | 1=''[[Clintonia]]''
                | 2=''[[Medeola]]''
                }}

             |label2=[[Lilieae]] ''s.l.''
             |sublabel2=EA
             | 2={{clade
                |label1=[[Tulipeae]]
                |sublabel1=East Asia
                | 1={{clade
                      |label1=
                      | 2={{clade
                         | 1=''[[Gagea]]'' (''[[Lloydia]]'')
                          }}
                      |label2=
                      | 1={{clade
                         | 1=''[[Tulipa]]''
                         | 2={{clade
                            | 1=''[[Amana (plant)|Amana]]''
                            | 2=''[[Erythronium]]''
                             }}
                          }}

                      }}
                   |label2=Lilieae ''s.s.''
                   |sublabel2=Himalayas
                   | 2={{clade
                    | 1=''[[Notholirion]]''
                    | 2={{clade
                       | 1= ''[[Cardiocrinum]]''
                       | 2= {{clade
                          |label1=
                          | 1= ''[[Lilium]]'' (''[[Nomocharis]]'')
                          | 2= '''''Fritillaria'''''
                                                 }}
               }}
         }}
       }}
     }}
 }}

}}

}}
}}

More recently, some larger phylogenetic studies of Lilieae, ''Lilium'' and ''Fritillaria'' have suggested that ''Fritillaria'' may actually consist of two distinct biogeographical clades (A and B), and that these are in a [[polytomous]] relationship with ''Lilium''. This could mean that ''Fritillaria'' is actually two distinct genera, suggesting that the exact relationship is not yet fully resolved.{{sfn|Day et al|2014}}{{sfn|Huang et al|2018}}

{{cladogram
| title=Cladogram of [[polytomy]] within Lilieae ''s.s.''{{sfn|Day et al|2014}}
| align= center
| cladogram={{clade|style="text-align:left; padding:2.5px; background:#eef"; width:500px;
| label1= [[Lilieae]] ''s.s.''
| 1={{clade
|   1=''[[Notholirion]]''
|   2={{clade
|     1=''[[Cardiocrinum]]''
|     2={{clade
|       1=''Lilium''
|       2=''Fritillaria A''
|       3=''Fritillaria B''}}}}}}
}}}}