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Juglandaceae

Cladus: Eukaryota
Regnum: Plantae
Divisio: Magnoliophyta
Classis: Magnoliopsida
Ordo: Fagales
Familia: Juglandaceae
Subfamilia: Engelhardioideae
Genera: Alfaroa - Alfaropsis - Engelhardia - Oreomunnea -
Subfamilia: Juglandoideae
Genera: Carya - Cyclocarya - Juglans - Platycarya - Pterocarya -
Unplaced genera:†Cruciptera - †Palaeocarya - †Palaeoplatycarya - †Pugetia - †Vinea

Name

Juglandaceae DC. ex Perleb

References

* Wolfe, J. A. (1968). Paleogene biostratigraphy of nonmarine rocks in King County, Washington. U.S. Geological Survey Professional Paper 571.
* Manchester, S. R. (1994). Fruits and seeds of the Middle Eocene Nut Beds Flora, Clarno Formation, Oregon. Palaeontographica Americana 58: 1–205.
* Stone, D. E. (2010). Review of New World Alfaroa and Old World Alfaropsis (Juglandaceae). Novon 20 (2): 215-224 doi: 10.3417/2009027.


Vernacular names
Česky: Ořešákovité
Dansk: Valnød-familien
English: Walnut family
Español: Juglandáceas
Македонски: Ореви
Nederlands: Okkernootfamilie
日本語: クルミ科
Slovenčina: Orechovité
Українська: Горіхові

The Juglandaceae, also known as the Walnut Family, is a family of trees, or sometimes shrubs, in the order Fagales. Various members of this family are native to the Americas, Eurasia, and Southeast Asia. Members of the walnut family have large aromatic leaves, that are usually alternate, but opposite in Alfaroa, Oreomunnia. The leaves are pinnately compound, or ternate, and usually 20–100 cm long.

The trees are wind-pollinated, and the flowers usually arranged in catkins.

There are eight genera in the family, including the commercially important nut-producing trees walnut (Juglans), pecan (Carya illinoinensis), and hickory (Carya). The Persian walnut, Juglans regia, is one of the major nut crops of the world. Walnut, hickory, and gaulin are also valuable timber trees.

Systematics

The known living genera are grouped into subfamilies, tribes, and subtribes as follows[1]:

Subfamily Engelhardioideae

* Alfaroa Standl. — (gaulin)
* Engelhardia Lesch. ex Blume — (cheo)
* Oreomunnea Oerst.

Subfamily Juglandoideae
Tribe Platycaryeae

* Platycarya Siebold & Zucc.

Tribe Juglandeae
Subtribe Caryinae

* Carya Nutt. — (hickory and pecan)

Subtribe Juglandinae

* Cyclocarya Iljinsk — (wheel wingnut)
* Juglans L. — (walnut)
* Pterocarya Kunth — (wingnut)
* (Scheibacanus)

The only member of the genus Alfaropsis I.A.Iljinsk., Alfaropsis roxburghiana (Wall.) I.A.Iljinsk. is a synonym for Engelhardia roxburghiana Wall. (or perhaps vice-versa).

The only member of the genus Annamocarya A.Chev., Annamocarya sinensis (Dode) J.-F.Leroy, may actually be a member of Carya, and belongs in the subtribe Caryinae.

Tryma

Some fruits are borderline and difficult to categorize. Hickory nuts (Carya) and Walnuts (Juglans) in the Juglandaceae family grow within an outer husk; these fruits are technically drupes or drupaceous nuts, and thus not true botanical nuts. Tryma is a specialized term for such nut-like drupes.[2][3]

References

1. ^ Manos, P. S., aand D. E. Stone 2001. "Evolution, phylogeny and systematics of the Juglandaceae." Annals of the Missouri Botanical Garden 88231-269
2. ^ http://waynesword.palomar.edu/fruitid1.htm Identification Of Major Fruit Types
3. ^ http://waynesword.palomar.edu/ecoph8.htm Fruits Called Nuts

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Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License