Aquifoliaceae

Revision as of 03:04, 13 May 2009 by Irenet (talk | contribs)


Read about Aquifoliaceae in the Standard Cyclopedia of Horticulture 

Aquifoliaceae (from Aquifolium, Tournefort's name for the genus Ilex, application obscure). Holly Family. Fig. 34. Trees or shrubs, with alternate or opposite, simple, often evergreen leaves: flowers bisexual, rarely unisexual, very small, axillary, solitary or fascicled, rarely cymose; sepals 3-6, more or less connate; petals 4-5, nearly separate, imbricated; stamens 4-5, alternating with the petals, and sometimes adhering to them, hypogynous disk wanting, ovary superior, 3 to many-celled, each cell 1-2-ovuled; stigma subsessile, lobed: fruit berry-like; seeds albuminous.

Three genera are known and about 280 species, of which 275 belong to the genus Ilex. These are widely distributed, but rare in Europe, the center of distribution being in Central and South America. Ten species are found wild in the northeastern United States. The Aquifoliaceae are related to the Celastraceae and the Anacardiaceae, from which they are distinguished by the absence of the hypogynous disk and by the general appearance.

Ilex Aquifolium of Europe is used there for hedges and for indoor decoration. I. opaca is used for indoor decoration in this country. The leaves of both are thick, glossy, evergreen and spiny-toothed. I. paraguariensis furnishes mate, which is the tea of South America. It was early cultivated by the Jesuits (1609- 1768), and is even yet one of the most important cultivated plants of South America. Other species of Ilex have been used in various parts of the world for medicine because of their astringent qualities and bitter principle.

Many species of Ilex (Holly, Dahoon, Cassena, Yaupon, Winterberry, Black Alder), and one of Nemopanthus (Mountain Holly) are grown as cultivated plants in America, all for ornamental purposes.

CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Aquifoliaceae
European Holly (Ilex aquifolium)
European Holly (Ilex aquifolium)
Plant Info
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Aquifoliales
Family: Aquifoliaceae
DC. ex A.Rich.

Genera
Ilex - Holly

Aquifoliaceae is a small flowering plant family with only one genus, Ilex, the hollies, a large genus with about 600 species distributed nearly world-wide, absent only from Australasia and western North America. They are shrubs and small trees, including both evergreen and deciduous species. Many of them are highly decorative.

American Holly (Ilex opaca) foliage and berries

One other genus, Nemopanthus, was formerly accepted as containing one species Nemopanthus mucronatus, separated from Ilex on the basis that the flowers having a reduced calyx and narrow petals, and also in cytology, being tetraploid, whereas Ilex is diploid. However, following molecular analysis, it has now been merged into Ilex, as I. mucronata [1], [2].

References

  • Powell, M., Savolainen, V., Cuénod, P., Manen, J. F., & Andrews, S. (2000). The mountain holly (Nemopanthus mucronatus: Aquifoliaceae) revisited with molecular data. Kew Bulletin 55: 341-347.