
Cupuliferae is a botanical name: in this case it is a descriptive botanical name: under the ICBN it may only be applied to a taxon at a rank above that of family. However, this name was only used for a family, and for this it may no longer be used. In the de Candolle system it referred to what is now the family Fagaceae, while in the Bentham & Hoo...
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http://en.wikipedia.org/wiki/Cupuliferae

Cupuliferae is a family of trees distributed chiefly in the temperate zones of the northern hemisphere and also in tropical Asia. The family is so named from the peculiar husk or cup (cupule) in which the fruit is inclosed and includes the beech, chestnut, oak and birch.
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http://www.probertencyclopaedia.com/browse/BCA.HTM
No exact match found.