LOPHIRA ALATA PDF

This species has been listed as ‘Vulnerable’ in the IUCN Red List because of the large scale destruction of wet evergreen forest throughout its range; the. Descriptions and articles about the Azobe, scientifically known as Lophira alata in the Encyclopedia of Life. Includes Overview; Brief Summary; Distribution;. Summary. Found in Western tropical Africa, Niam Tree or Lophira alata is an extremely large tree growing usually about m tall. It has a long, narrow crown.

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Young plants respond well to initial light shade, e.

IUCN Red List of Threatened Species

Help us share the wonders of the natural world. Leaves arranged spirally, clustered at the ends aoata branches, simple and entire; stipules triangular, c.

It has a long, narrow crown and long, straight trunk that can be unbranched for up to 30 m lopihra up to cm in diameter. X Close Link to this photo Embed this Arkive thumbnail link “portlet” by copying alatw pasting the code below. It is often found in secondary forest and regrowth along lophlra roads and in clearings, and is also common in forest islands in savanna and in open Marantaceae forest in Gabon and Congo. Terms of Use – The displayed portlet may be used as a link from your website to Arkive’s online content for private, scientific, conservation or educational purposes only.

Lophira alata is one of the species most widely exploited for its wood, in particular in Cameroon, Equatorial Guinea and Gabon.

While in natural forest growth can be fast for young trees in full sunlight, growth slows down immediately when competition with other species occurs. Research on the genetics of the species and the selection of plants which are more tolerant to drought could favour its plantation on a wider scale.

It may NOT be used within Apps. Chalcone tetramers, lophirachalcone and alatachalcone, from Lophira alata as possible anti-tumor promoters.

Lophira alata Images

This indicates that sexual maturity and reproductive efficiency are reached late. They are reddish and may appear at different times in different parts of a single crown. This QR Code is unique to this page. Which species are on the road to recovery?

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It is one of the most over exploited species due to its strong, heavy, and highly durable timber. The distribution of bole diameters over size classes forms a bell-shaped curve, lopnira that the recruitment of young trees is not assured under the cover of adult trees.

Embed this Arkive thumbnail link “portlet” by copying and pasting the code below.

Flowering occurs in adult trees with trunks over 50 centimetres in diameter, and takes place from the time the new leaves appear. They are now almost everywhere degraded or have disappeared completely as a result of human activity in the coastal regions. The flowers of the azobe are white, fairly large, strong-smelling, and grouped in loose, branched, terminal inflorescences. Leaf-fall and the appearance of new leaves may be synchronous in all trees in a region, but can also extend over 2 months.

The azobe sheds all its leaves during a short period of one to two weeks, usually in December, and the re-growth of bright red young leaves, often simultaneously on all azobe trees in an area, can set the canopy ablaze with colour 2. Sniffing the bark is used as a traditional treatment for headache. However, the number of fruits under a mother tree becomes markedly larger when the bole diameter has become larger than cm, or when the tree avails of a large exposed crown. However, improved protection, better management of existing forest reserves, and intensified regeneration work are all considered essential conservation measures to protect this heavily utilised rainforest tree 1 7.

Azobe adapts to a range of soil types and tends to prefer fairly flat ground, generally at elevations below metres 2. Management of plantations is generally limited to removal of small lianas and saplings of other trees. Germination can be fairly rapid taking 9—16 days, but can also take longer, 18—30 days for normal, mono-embryonic seeds, and about 45 days for poly-embryonic seeds, which are fairly common in Lophira alata.

Ring weeding is required to avoid competition for water, nutrients and light, and when plants are well established, more complete weedings can be carried out.

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In West Africa, the abundance of Lophira alata is closely linked with rainfall, reaching an optimum at mm per year. It must be assumed that erosion of the genetic diversity has occurred. This outer layer of wood contains the sap and is generally lighter in colour than the heartwood. Not all trees bear fruit annually, and it has been reported from Guinea that mast years occur only every 3—4 years.

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Lophira alata – Wikipedia

Young trees under four metres in height have greenish-grey bark, which becomes pink or light brown as the tree matures 2. When preservation is needed, wood should be scarified immediately after sawing lophjra just before treatment under lopihra. Plants For A Future can not take any responsibility for any adverse effects from the use of plants.

In Cameroon and Gabon Lophira alata is self-pruning and trees drop branches regularly and without leaving visible scars.

Gallery forest Forest growing along a river or stream. In addition, the effects of the systematic exploitation of the best trees on the genetic diversity are not known.

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Young plants are more sensitive alqta attack by stem borers when they are exposed to full light; such attacks are more frequent in the nursery than in forest. Terms of Use – The displayed portlet may be used as a link from your website to Arkive’s online content for private, scientific, conservation or educational purposes only.

The bark is typically red-brown in colour, up to two centimetres thick, and has a bright yellow layer underneath. Small rodents are a threat because alta dig up and eat the seeds.

In the Central African Republic the bark is applied against snake bites, in Cameroon for wound healing. Luteolin and lithospermoside have also been isolated.