NationMaster - Encyclopedia: Apiales

The Apiales are an order of flowering plants. The families given at right are typical of newer classifications, though there is some slight variation, and in particular the Torriceliaceae may be divided. These families are placed within the asterid group of dicotyledons.

Under the older Cronquist system, only the Apiaceae and Araliaceae were included here, and the restricted order was placed among the rosids rather than the asterids. The Pittosporaceae were placed within the Rosales, and the other forms within the family Cornaceae.

Categories: Apiales

Results from FactBites:

Systematics of the Apiales (782 words)
	The debate is fueled by the ambiguous nature of the trends in morphological evolution of the Apiales.
	With regards to subdivision of the Apiales, the old hypothesis divided the Apiales into two families, the Apiaceae (=Umbelliferae) with 3000 species and the Araliaceae with 700.
	Regarding the Apiales' relationship to other angiosperm groups, phylogenetic trees based on the DNA sequences show that the Apiales are not as closely related to Cornales, but should be placed in the subclass Asteridae near the Aquifoliaceae (hollies), Gunneraceae, and Eucommiales (Nandi, 1998).

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