dcsimg

Description

provided by Flora of Zimbabwe
Monoecious trees. Leaves alternate, pinnate. Stipules 0. Male inflorescences pendulous, sometimes branched, catkins; female flowers solitary or several together in bracteate inflorescence. Male flowers: stamens 3-many; perianth zygomorphic. Female flowers: calyx 4-lobed, adnate to the inferior ovary; stigmas 2-4-branched. Fruit usually a drupe with a husk containing a large 2-4-lobed seed.
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Mark Hyde, Bart Wursten and Petra Ballings
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Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Juglandaceae Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/family.php?family_id=261
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Mark Hyde
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Bart Wursten
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Petra Ballings
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Flora of Zimbabwe

Juglandaceae

provided by wikipedia EN

The Juglandaceae are a plant family known as the walnut family. They are trees, or sometimes shrubs, in the order Fagales. Members of this family are native to the Americas, Eurasia, and Southeast Asia.

The nine or ten genera in the family have a total of around 50 species,[3] and include 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 while pecan wood is also valued as cooking fuel.

Description

Members of the walnut family have large, aromatic leaves that are usually alternate, but opposite in Alfaroa and Oreomunnea. The leaves are pinnately compound or ternate, and usually 20–100 cm long. The trees are wind-pollinated, and the flowers are usually arranged in catkins.

The fruits of the Juglandaceae are often confused with drupes but are accessory fruit because the outer covering of the fruit is technically an involucre and thus not morphologically part of the carpel; this means it cannot be a drupe but is instead a drupe-like nut.[4]

Taxonomy

The known living genera are grouped into subfamilies, tribes, and subtribes as follows:[5]

Systematics

Modern molecular phylogenetics suggest the following relationships:[7]

   

Myricaceae (outgroup)

  Juglandaceae Rhoipteleoideae

Rhoiptelea

    Engelhardioideae

Engelhardia

     

Alfaroa

   

Oreomunnea

      Juglandoideae    

Carya

   

Annamocarya

       

Platycarya

     

Cyclocarya

     

Pterocarya

   

Juglans

               

References

  1. ^ Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III" (PDF). Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x. Retrieved 2013-07-06.
  2. ^ "Family: Juglandaceae DC. ex Perleb, nom. cons". Germplasm Resources Information Network. United States Department of Agriculture. 2003-01-17. Archived from the original on 2015-10-03. Retrieved 2011-11-17.
  3. ^ Christenhusz, M. J. M.; Byng, J. W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
  4. ^ John Derek Bewley, Michael Black, Peter Halmer (2006) The Encyclopedia of Seeds: Science, Technology And Uses
  5. ^ Manos, P. S.; D. E. Stone (2001). "Evolution, phylogeny and systematics of the Juglandaceae" (PDF). Annals of the Missouri Botanical Garden. 88 (2): 231–269. doi:10.2307/2666226. JSTOR 2666226.
  6. ^ "GRIN Genera of Juglandaceae". Germplasm Resources Information Network. United States Department of Agriculture. Archived from the original on 2015-09-24. Retrieved 2011-11-17.
  7. ^ Xiang XG, Wang W, Li RQ, Lin L, Liu Y, Zhou ZK, Li ZY, Chen ZD (2014). "Large-scale phylogenetic analyses reveal fagalean diversification promoted by the interplay of diaspores and environments in the Paleogene". Perspectives in Plant Ecology, Evolution and Systematics. 16 (3): 101–110. doi:10.1016/j.ppees.2014.03.001.
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Juglandaceae: Brief Summary

provided by wikipedia EN

The Juglandaceae are a plant family known as the walnut family. They are trees, or sometimes shrubs, in the order Fagales. Members of this family are native to the Americas, Eurasia, and Southeast Asia.

The nine or ten genera in the family have a total of around 50 species, and include 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 while pecan wood is also valued as cooking fuel.

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cc-by-sa-3.0
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Wikipedia authors and editors
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wikipedia EN