Gentianales

From Wikipedia, the free encyclopedia

Gentianales
Gentiana cruciata
Scientific classification
Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Gentianales Lindley
Families
Gentianaceae (gentian family) Apocynaceae (dogbane family) Gelsemiaceae Loganiaceae (logania family) Rubiaceae (coffee family)

Gentianales are an order of flowering plants, included within the asterid group of dicotyledons.

The circumscription of Gentiales in the Cronquist system included a broadly defined Loganiaceae (since broken up into several families), Retziaceae, Gentianaceae, Saccifoliaceae, Apocynaceae, and Asclepiadaceae. The circumscription recognized by the Angiosperm Phylogeny Group (APG) includes Apocynaceae (including Asclepiadaceae), Gelsemiaceae (segregated from Loganiaceae), Gentianaceae (including Saccifoliaceae), Loganiaceae, and Rubiaceae.

Under the APG definition some well-known members of Gentianales are coffee, gardenias, and frangipani.

APG includes Retziaceae in Stilbaceae (order Lamiales).

[edit] References

• Struwe, L., V. A. Albert, and B. Bremer. 1994. Cladistics and family level classification of the Gentianales. Cladistics 10: 175–205.
• Backlund, Maria, Bengt Oxelman, and Birgitta Bremer. 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. Phylogenetic relationships within the Gentianales based on NDHF and RBCL sequences, with particular reference to the Loganiaceae