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Useful Tropical Plants

Agathis lanceolata

Lindl. ex Warb.

Araucariaceae

+ Synonyms

Common Name: Koghis Kauri

Agathis lanceolata
Looking up the trunk into the canopy
Photograph by: Tim Waters
Creative Commons License
Agathis lanceolata Agathis lanceolata Agathis lanceolata Agathis lanceolata

General Information

Koghis kauri is a tall, evergreen tree with an irregular, dense crown; it can grow up to 40 metres tall[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. The bole can be free of branches for up to 15 metres[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
An extremely valuable website, providing a vast amount of information on conifers and families of gymnosperms.
].
The tree was the most important soft wood timber of New Caledonia, but was harvested well beyond its ability to regenerate and is no longer available in sufficient quantities for commercial exploitation. It is also harvested from the wild for the resin obtained from the trunk.
This species is facing a high risk of extinction in the wild due to a restricted and highly fragmented distribution, coupled with continued declines in both the extent of habitat and the size of the population; no population is thought to contain more than 1,000 mature individuals[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
]. The plant is classified as 'Vulnerable' in the IUCN Red List of Threatened Species(2011)[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Known Hazards

None known

Botanical References

200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
An extremely valuable website, providing a vast amount of information on conifers and families of gymnosperms.

Range

Pacific - New Caledonia.

Habitat

An emergent tree in dense humid rainforest on ultramafic substrates[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Properties

Conservation StatusVulnerable
Edibility Rating *  *
Medicinal Rating *  *
Other Uses Rating *  *  *
HabitEvergreen Tree
Height40.00 m
PollinatorsWind
Cultivation StatusWild

Cultivation Details


Older trees grow well in sunny positions, but need the shady, sheltered conditions of the woodland when small[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

Edible Uses

Seed[
622
Title
A handbook of Coniferae, including Ginkgoaceae
Publication
 
Author
Dallimore W.; Jackson A.B.
Publisher
Edward Arnold & Co.; London
Year
1923
ISBN
 
Description
Very dated now, but still contains information on plants that is hard to obtain elsewhere.
].

Medicinal

The resin is antiseptic and vulnerary. It is used as a dressing for wounds and ulcers[
620
Title
Les Plantes Medicinales de la Nouvelle Caledonie
Publication
 
Author
Rageau J.
Publisher
O.R.S.T.O.M.; Paris.
Year
1973
ISBN
 
Description
Very terse information on the medicinal uses of plants in New Caledonia.
].

Other Uses

The trunk is a source of a kauri or dammar resin[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
]. The tree produces an immense quantity of a yellowish, translucent, fragrant resin[
622
Title
A handbook of Coniferae, including Ginkgoaceae
Publication
 
Author
Dallimore W.; Jackson A.B.
Publisher
Edward Arnold & Co.; London
Year
1923
ISBN
 
Description
Very dated now, but still contains information on plants that is hard to obtain elsewhere.
].
Dammar is a hard resin, obtained from various trees of Southeast Asia. Traditionally, it is used for purposes such as caulking boats and baskets, as an adhesive, a medicine, as a fuel for torches and sometimes in foods. Dammar has many commercial applications, though many of these uses are less important nowadays due to the advent of synthetic materials. Commercially, it is an ingredient of inks, lacquers, oil paints, varnishes etc, and is used as a glazing agent in foods[
891
Title
Gums, Resins and Latexes of Plant Origins.
Publication
Non-Wood Forest Products 6.
Author
Coppen J.J.W.
Website
http://www.fao.org/docrep/
Publisher
FAO, United Nations; Rome
Year
1995
ISBN
92-5-103757-4
Description
A handbook published by the Food and Agriculture Organisation of the United Nations, it provides good basic information on the sources and uses of the various gums, resins and latexes. It can be downloaded from the Internet.
].
Harvesting of the resin commences when the bole is around 25cm in diameter (approx 20 years old). Triangular cuts (becoming circular with age) are arranged in vertical rows around the trunk. The cuts are several centimetres wide at first, but become enlarged at every tapping and eventually become holes of 15 - 20cm in depth and width. The average number of holes for a tree about 30 metres tall and 60 - 80cm in diameter is 9 - 11 in each of 4 - 5 vertical rows. For the higher holes, the tapper climbs the tree supported by a rattan belt and using the lower holes as footholds.
The exuded resin is allowed to dry on the tree before it is collected. The frequency with which the tree is visited to refreshen the cut varies from once a week to once a month, depending on how far the tree is from the village. Tapping can continue for 30 years[
891
Title
Gums, Resins and Latexes of Plant Origins.
Publication
Non-Wood Forest Products 6.
Author
Coppen J.J.W.
Website
http://www.fao.org/docrep/
Publisher
FAO, United Nations; Rome
Year
1995
ISBN
92-5-103757-4
Description
A handbook published by the Food and Agriculture Organisation of the United Nations, it provides good basic information on the sources and uses of the various gums, resins and latexes. It can be downloaded from the Internet.
].

The heartwood is a pale cream, golden brown, to dark reddish or yellowish brown if resinous; it is usually not distinct from the sapwood[
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
]. The wood is lustrous; the grain mainly straight; texture fine and uniform; generally without distinctive odour or taste[
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
]. It is generally not durable, vulnerable to termite attack and prone to blue stain[
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
]. It works easily with hand and machine tools, finishes with a clean smooth surface; has good nailing and screwing properties; good veneer peeling characteristics; paints and polishes well; easy to glue[
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
]. A very important soft wood timber[
621
Title
Journal of the Arnold Arboretum Vol. 07
Publication
 
Author
Sargent C.S.; Rehder A. (Editors)
Website
http://www.biodiversitylibrary.org
Publisher
Harvard University.
Year
1926
ISBN
 
Description
Various articles on botany, including one on the woody plants of New Caledonia.
], it is used for a range of purposes, including vats and tanks, patternmaking, millwork, boatbuilding, furniture components, face veneers, shingles and pencil slats[
316
Title
Tropical Timbers of the World. Ag. Handbook No. 607.
Publication
 
Author
Chudnoff. Martin.
Publisher
USDA Forest Service. Wisconsin.
Year
1984
ISBN
 
Description
Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
].

Propagation

Seed - it cannot tolerate desiccation and does not store for much more than 2 months in normal conditions. It does not require pre-treatment. Sowing is done with the wing part of the seed pointing upwards and 66% of the seed buried in the soil. Germination commences within 6 days, with 90 - 100% germination rates within 10 days[
325
Title
Seed Leaflets
Publication
 
Author
Various
Website
http://en.sl.life.ku.dk/Publikationer/Udgivelser/PopulaerPublikationer.aspx?katid={D28373CC-6EF3-4EF8-B097-6D83FABF209E}&serieid={9F1C3DB1-6E7B-4CF1-AF53-F480B0CB40EF}&sort=title
Publisher
Forest & Landscape. Denmark
Year
0
ISBN
 
Description
A series of leaflets, jointly produced by the University of Copenhagen and the Royal Botanic Gardens at Kew, focussing on seed information for a number species, but also giving a lot of other information about each plant.
].
Cuttings of leading shoots[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
307
Title
Tropical and Subtropical Trees - A Worldwide Encyclopaedic Guide.
Publication
 
Author
Barwick. M.
Publisher
Thames & Hudson, London
Year
2004
ISBN
0-500-51181-0
Description
A superb book, very concise and well written, giving a wealth of information on 400 or more species including descriptions, habitat, cultivation details and plant uses. A wealth of colour photographs bring each plant vividly to life.
].
Cuttings of epicormic shoots[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

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