Dioscoreales

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Dioscoreales is a botanical name for an order of flowering plants. Of necessity it contains the family Dioscoreaceae.

In the APG II system, of 2003, this order was placed in the clade monocots and comprised the families Burmanniaceae, Dioscoreaceae and Nartheciaceae.

Under the APG system of 1998, the order was placed in the clade monocots and comprised the families Burmanniaceae, Dioscoreaceae, Taccaceae, Thismiaceae and Trichopodaceae

In APG II, the family Thismiaceae has been included in family Burmanniaceae and the families Taccaceae and Trichopodaceae have been included in family Dioscoreaceae. Therefore the change is not as large as might appear, and the only plants to have moved across the borders of the order are those belonging to family Nartheciaceae.

The Cronquist system, of 1981, did not recognise such an order, but placed most such plants in order Liliales in subclass Liliidae in class Liliopsida (monocotyledons) of division Magnoliophyta (angiosperms).

Under the Dahlgren system, Dioscoreales was placed in the superorder Lilianae in subclass Liliidae (monocotyledons) of class Magnoliopsida (angiosperms) and comprised the families Dioscoreaceae, Petermanniaceae, Rhipogonaceae, Smilacaceae, Stemonaceae, Taccaceae, Trichopodaceae and Trilliaceae.

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