Proteaceae


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Proteaceae

[prō′tās·ē‚ē]
(botany)
A large family of dicotyledonous plants in the order Proteales, notable for often having a large cluster of small or reduced flowers.

Proteaceae

 

(protea), a family of dicotyledonous plants that includes shrubs, trees, and, less commonly, undershrubs. The evergreen leaves have no stipules and are mostly alternate and often leathery. The flowers, which are primarily bisexual and usually regular, are solitary or in inflorescences. The simple perianth consists of four petal-shaped leaflets, which frequently are adnate below. There are four stamens. The gynoeceum consists of one carpel. The fruits are follicles, nuts, samaras, or drupes.

There are approximately 1,400 species, making up about 60 genera. The plants grow primarily in the dry regions of the southern hemisphere. There are approximately 800 species in Australia and 380 in southern Africa. The largest genera are Grevillea (approximately 160 species), Hakea (more than 100 species), Protea (more than 110 species), and Leucadendron (approximately 70 species). The last genus includes the silver tree (L. argenteum), which is native to southern Africa and is noted for its dense silvery gray pubescence. Some species yield valuable wood, and others have edible seeds. A number of species are raised in greenhouses.

REFERENCE

Hutchinson, J. The Genera of Flowering Plants, vol. 2. Oxford, 1967.

M. E. KIRPICHNIKOV

References in periodicals archive ?
Proteoid roots are dense proliferations of rootlets that occur on the root systems of nearly all genera in the Proteaceae (Lamont 1993).
Lacewood sold commercially in the United States also includes the related species Grevillea robusta, known also as southern silky oak, both of the family Proteaceae.
4) Family) Proteaceae (Protea Family) Macadamia integrifolia L.
Pollen of Casuarina, several types of Proteaceae and Nothofagus (both Fuscospora and Brassospora) is present.
One of the surprising finds in the Newvale leafbed was a diverse range of Proteaceae leaves, as the modern New Zealand flora includes just two species in two genera: Knightia and Toronia.
Major advances in understanding the relationships of Proteaceae both to other taxa and within the family have been made over the last 15 years or so, mostly through the acquisition of DNA sequence data and their analyses using powerful algorithmic methods.
1994) noted the interesting similarity of the pinnate/pinnatifid architecture of many extant Proteaceae to that of certain Cretaceous platanoids, and Carpenter et al.
3/21 350 Proteaceae, Proteales Heliciopsis Steamer 1/2 10 Ranunculaceae, Ranunculales Clematis L.
Key Based on Leaf Characters of Fossil Proteaceae from Patagonia
Proteaceae, with approximately 70 genera and over 1700 species, is
and Ginkgoales (among gymnosperms), along with Proteaceae Lomatia and
Podocarpaceae, Araucariaceae, Proteaceae (Beauprea), and megathermal