TaxonomyDilleniales is an Order closely related to
Caryophyllales in the
Apg3 classification. They have many similarities with
Magnoliidae.
Dilleniales has one
Family,
Dilleniaceae.
The placement of
Dilleniaceae has been quite problematic. In the Dahlgren system they gave the name to the Dilleniadeae, a clade that was polyphyletic and does not exist anymore in the
Apg classification. In the
Apg classification the position of the
Dilleniaceae has been wandering, from being near the Rosidae to being near the
Caryophyllales or completely unclear. They are on one hand quite developed but on the other hand look very much like
Magnoliidae. This combination supports the hypothesis that the
Dilleniales are the second clade of the
Asteranae Class. It leads to the combination of just
Carbon series and
Lanthanides.