Classification APG

The classification APG (1998), or phylogenetic classification, is a botanical classification Angiosperme S established according to work of L '''''' has ''' ngiosperms ''' P ''' hylogeny ''' G ''' roup ''. It is the first classification published by this group: the second is the phylogenetic classification APG II (2003).

It translates, in the fields of the Angiosperme S, the efforts made in Systématique so that the system of classification of the living beings reflects with more close “historical reality” of the family ties or Phylogénie between the Espèce S, whether they are current or extinct.

In its delimitation of the orders and families, only natural groups, strictly Monophylétique S. Certains orders are retained are consequently very small, sometimes restricted with only one family (even only one kind), whereas others contain the many ones. The row of order or family does not indicate a natural level (a Taxon in a particular position can be an order, but same the taxon in another position can be a family).

This classification, based mainly on the chloroplastic analyzes of both Gene S , introduced, even on the level of the families, the notable changes with the traditional Classification. For example, the former family of the Liliacée S is now burst in ten families.

Reflection of a consensus on the knowledge acquired during its publication in 1998, this classification was revised in 2003 and the last modifications are available on.

The principal groups are the clades following:

  • Angiospermes :
  • : Liliidées
  • : Monocotylédones
  • :: Commelinoides
  • : Dicotylédones true
  • :: Cores of the true dicotylédones
  • ::: Rosidées
  • :::: Fabidées
  • :::: Malvidées
  • ::: Astéridées
  • :::: Lamiidées
  • :::: Campanulidées

Families and orders of old divergence

Monocotylédone S (English)

Directly attached families and orders

Commelinoides (English)

NB it is in APG (1998), but in APG II (2003)

Dicotylédones true or eudicotylédones (English)

(with triaperturé pollen or more)

Directly attached families and orders

One distinguishes a first group from dicotylédones with triaperturé pollen having preserved characters primitive.

Cores of Dicotylédones true (English)

they are the dicotylédones with tetracyclic flowers (in general: 4-5 sepals, 4-5 petals, 4-10 cheesecloths, 2-5 carpelles)

Directly attached families and orders

Rosidées (English)

Directly attached families and orders

Fabidées (English)

Malvidées (English)
African Baobab tree, of the Lime and the mauve and the Cacao-tree) the maple and of the Horse chestnut tree).

Astéridées (English)

Directly attached orders

Lamiidées or Euastéridées I (English)

Campanulidées or Euastéridées II (English)

NB. " +… " = optional family

Families of dubious position (for the Dicotylédones majority true

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See too

traditional Classification | Classification APG II | Flora

External bonds

  • APG 1 with CSDL, Texas
  • APwebsite and especially its complete tree of Angiospermes. NB. this website is not APG (1998), but a contemporary position (2006).

Random links:Euphorbiaceae | Sennacherib | Bonea | Charles Rene Girard de Villars | Spui (river) | Davidsonia pruriens