Gentianales
| Gentianales | |
|---|---|
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| Gentiana cruciata | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: |
Gentianales Juss. ex Bercht. & J.Presl |
| Families | |
| Synonyms | |
Gentianales is an order of flowering plants, included within the asterid clade of eudicots. It comprises more than 16,000 species in about 1,138 genera in 5 families.[1] More than 80% of the species belong to the Rubiaceae family.
Contents
- Etymology 1
- Uses 2
- Taxonomy 3
- Phylogeny 4
- References 5
Etymology
It takes its name from the Gentianaceae family, which in turn is based on the name of the type genus Gentiana. The genus name is a tribute to Gentius, an Illyrian king.
Uses
Well-known members of Gentianales are coffee, frangipani, Gardenia, gentian, oleander, and periwinkle.
Taxonomy
The following families are included according to the APG III system:[1]
- 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 sequences.[2]
| Gentianales |
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References
- ^ a b Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society 161 (2): 105–121.
- ^ Backlund M, Oxelman B, Bremer B (2000). "Phylogenetic relationships within the Gentianales based on NDHF and RBCL sequences, with particular reference to the Loganiaceae". American Journal of Botany 87: 1029–1043.