Editing Gentianales (section)

==Taxonomy==
In the classification system of [[Rolf Dahlgren|Dahlgren]] the Gentiales were in the [[superorder]] Gentianiflorae (also called Gentiananae). The following families are included according to the [[APG III system]]:<ref name="APGIII2009">{{Cite journal|author=Angiosperm Phylogeny Group|year=2009|title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III|journal=Botanical Journal of the Linnean Society|volume=161|issue=2|pages=105–121|doi=10.1111/j.1095-8339.2009.00996.x|doi-access=free|hdl=10654/18083|hdl-access=free}}</ref>
* Family [[Apocynaceae]] (424 genera)
* Family [[Gelsemiaceae]] (2 genera)
* Family [[Gentianaceae]] (87 genera)
* Family [[Loganiaceae]] (13 genera)
* Family [[Rubiaceae]] (611 genera)

===Phylogeny===
The following [[phylogenetic tree]] is based on [[molecular phylogenetic]] studies of [[DNA sequence]]s.<ref name=Backlund>{{Cite journal|vauthors=Backlund M, Oxelman B, Bremer B |s2cid=15433433|year=2000|title=Phylogenetic relationships within the Gentianales based on NDHF and RBCL sequences, with particular reference to the Loganiaceae|journal=American Journal of Botany|volume=87|issue=7|pages=1029–1043|doi=10.2307/2657003|jstor=2657003|pmid=10898781}}</ref>

{{clade
|label1='''Gentianales'''
|1={{clade
   |1=[[Rubiaceae]]
   |2={{clade
      |1=[[Gentianaceae]]
      |2={{clade
         |1=[[Loganiaceae]]
         |2={{clade
         	|1=[[Apocynaceae]]
         	|2=[[Gelsemiaceae]]
         	}}
         }}
      }}
   }}
}}

===Etymology===
It takes its name from the family [[Gentianaceae]], which in turn is based on the name of the type genus, ''[[Gentiana]]''. The genus name is a tribute to [[Gentius]], an Illyrian king.