Essential Information & explanations, latest texts & monographs on
Acacia.
Ramses: Under the Western Acacia (Ramses Under the Western ACACIA, Vol. 5) by Christian Jacq
The Cross Under the Acacia Tree: The Story of David and Eunice Simonson's Epic Mission in Africa by Jim Klobuchar
THE ACACIA by Claude Simon
Amulets of Acacia by William F. Meehan
Bajo la Acacia de Occidente by Christian Jacq
Ramses, Volume V: Under the Western Acacia by Warner Books
In the Shade of an Acacia Tree: Memoirs of a Health Officer in Africa, 1945-1959 (Memoirs of the American Philosophical Society, Vol 194) by Frank L. Lambrecht
When the Acacia Bird Sings by James O'Halloran
Growing Acacias by Marion Simmons
Acacia Grove by Lydia Susan Long
Ramses, Volume V: Under the Western Acacia by Warner Books
Bride of Acacias: Selected Poems of Forugh Farrokhzad by Forugh Farrukhzad
Ramses 5: Under the Western Acacia (Ramses) by Christian Jacq
Ramses 5: Under the Western Acacia (Ramses) by Christian Jacq
Ramsès, tome 5 : Sous l'acacia d'Occident by Christian Jacq
Acacia
Acacias
Acacia tree in Thailand
Scientific classification
Kingdom:Plantae
Division:Magnoliophyta
Class:Magnoliopsida
Order:Fabales
Family:Fabaceae
Genus:Acacia
Species
many, see text
Acacia is a genus of shrubs and trees of Gondwanian origin belonging to the family Leguminosae and the sub-family Mimosoideae, first described from African examples by Linnaeus 1n 1773. There are roughly 1300 species worldwide: about 950 of them being native to Australia, while the balance is spread around the Southern Hemisphere, including Africa, India and southern Asia, and the Americas. Australian species are often called wattles.
The small flowers are arranged in rounded or elongated clusters. The leaves are compound pinnate in general (see fig.). In some instances, however, more especially in the Australian species, the leaflets are suppressed and the leaf-stalks become vertically flattened, and serve the purpose of leaves. The vertical position protects the structure from the intense sunlight, as with their edges towards the sky and earth they do not intercept light so fully as ordinary horizontally placed leaves.
Various species yield gum. True gum arabic is the product of Acacia senegal, abundant in both east and west tropical Africa. Acacia arabica is the gum-arabic tree of India, but yields a gum inferior to the true gum-arabic.
An astringent medicine, called catechu or cutch, is procured from several species, but more especially from Acacia catechu, by boiling down the wood and evaporating the solution so as to get an extract.
The bark of Acacia arabica, under the name of babul or babool, is used in Scinde for tanning. In Ayurvedic medicine, babul is considered a remedy that is helpful for treating premature ejaculation. The bark of various Australian species, known as wattles, is also very rich in tannin and forms an important article of export. Such are Acacia pycnantha, golden wattle, A. decurrens, tan wattle, and A. dealbata, silver wattle. The pods of Acacia nilotica, under the name of neb-neb, and of other African species is rich in tannin and used by tanners. The seeds of Acacia niopo are roasted and used as snuff in South America.
Some species afford valuable timber; such are Acacia melanoxylon, black wood of Australia, which attains a great size; its wood is used for furniture, and takes a high polish; and Acacia homalophylla (also Australian), myall wood, which yields a fragrant timber, used for ornamental
purposes. Acacia formosa supplies the valuable Cuba timber
called sabicu. Acacia seyal is supposed to be the shittah
tree of the Bible, which supplied shittim-wood. Acacia heterophylla, from Mauritius and Bourbon, and Acacia koa from Hawaii are also good timber trees.
A few species are widely grown as ornamentals in gardens; the most popular perhaps is A. dealbata (Silver wattle), with its attractive glaucous to silvey leaves and bright yellow flowers. This species is erroneously known as "mimosa" in some areas where it is cultivated.
The plants often bear spines, especially those growing in arid districts in Australia or tropical and South Africa. These sometimes represent branches which have become short, hard and pungent, or sometimes leaf-stipules. Acacia armata is the kangaroo-thorn of Australia, A. giraffae, the African
camelthorn. In the Central American Acacia sphaerocephala (bullthorn acacia) and A. spadicigera, the large thorn-like stipules are hollow and afford shelter for ants, which feed on a secretion of honey on the leaf-stalk and curious food-bodies at the tips of the leaflets; in return they protect the plant against leaf-cutting insects.
In common language the term Acacia is occasionally misapplied to species of the genus Robinia which also belongs in the pea family, but in a different subgenus. Robinia pseudoacacia, an American species normally known as Black locust, is sometimes called "false acacia" in cultivation in Britain.
The above article is adapted from from Wikipedia All Wikipedia article text is available under the terms of the GNU Free Documentation License
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