Cronquist, Arthur Formerly, New York Botanical Garden, New York, New York.
Barkley, Theodore M. Division of Biology, Kansas State University, Manhattan, Kansas.
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An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass Dilleniidae of the class Magnoliopsida (dicotyledons). The order consists of 24 families and more than 5000 species, including most of the families that have been referred to the Englerian order Parietales. The largest families are the Flacourtiaceae (about 800 species), Violaceae (about 800 species), Cucurbitaceae (about 900 species), Begoniaceae (about 1000 species), and Passifloraceae (about 650 species). The Cucurbitaceae have often been considered to constitute a distinct order, Cucurbitales, but there is a developing consensus that their relationship is here.
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