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Useful Tropical Plants

Afrocarpus usambarensis

(Pilg.) C.N.Page

Podocarpaceae

+ Synonyms

Afrocarpus mannii usambarensis (Pilg.) Silba

Nageia mannii usambarensis (Pilg.) Silba

Podocarpus usambarensis Pilg.

Common Name:

No Image.

General Information

Afrocarpus usambarensis is an evergreen tree developing a domed crown at maturity; it can grow around 30 metres tall. The straight, cylindrical bole can be around 200cm in diameter[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].
The tree is harvested from the wild for its wood, which is used locally and also traded.
This species is under severe threat from illegal logging in the Chome Forest Reserve in Tanzania (evidence from aerial photography); the same type of saw pit exploitation is known from other locations. General deforestation and fires are also reducing the rainforest, which is usually limited in extent even naturally. This species is the most valuable and specifically targeted tree for (illegal) logging in this type of forest. The plant is classified as 'Endangered' in the IUCN Red List of Threatened Species(2013)[
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

329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.

Range

East and central Tropical Africa - Dr Congo, Burundi, Rwanda, Kenya, Tanzania

Habitat

Montane evergreen rainforest and dry evergreen forest, mixed with co-dominant angiosperms; at elevations from 1,500 - 3,000 metres[
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 StatusEndangered
Other Uses Rating *  *  *
HabitEvergreen Tree
Height25.00 m
PollinatorsWind
Self-fertileNo
Cultivation StatusWild

Cultivation Details

In the Nyungwe Natural Forest Reserve of Rwanda, Afrocarpus usambarensis occurs in evergreen tropical rainforest with a mean annual precipitation of 1,744mm, a two month dry season, and temperatures averaging 15°c, with negligible seasonal variation[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
]. It can withstand short-lasting, light frosts with temperatures falling to between -1°c and +4.4°[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].

A dioecious species - both male and female forms must be grown if fruit and seed are required[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Edible Uses

None known

Medicinal

None known

Other Uses

This species yields 'yellowwood' or podocarp wood. It is highly valued for its timber and is exploited mainly for sawn timber which is used in the construction of houses. The wood is yellowish in colour, straight-grained, and clean of knots and can be used for general carpentry and furniture as well[
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.
]
This species, like most African podocarps, is highly valued for its timber, which is yellow, strong, and very suitable for construction[
329
Title
The Gymnosperm Database
Publication
 
Author
 
Website
http://www.conifers.org/index.htm
Publisher
 
Year
0
ISBN
 
Description
A vast amount of information on conifers and families of gymnosperms.
].

Propagation

Seed - remains viable for several years in normal storage.
The seed has two types of dormancy; a chemical, which is overcome by removing the fleshy layer and a mechanical, imposed by the hard seedcoat. To ensure a high and even germination the seedcoat must be broken and removed. This can be done in a vice but it is very time-consuming. Freshly collected seeds will normally germinate well, up to 60% in nine weeks, even with seedcoat but once the seeds have been dried, germination can take more than six months unless the seedcoat is removed. Some reports say that soaking in saturated salt water just before sowing can improve germination. Others recommend stratification between two layers of compost for 3 - 5 days in order to weaken the seedcoat[
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.
]. The seeds are sown directly in nursery bags or in seedbeds in a mixture of compost and sand (1:1). The seed must be pushed into the mixture and covered with a fine layer of soil. The mixture must never be allowed to dry out[
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 taken from end shoots (as opposed to cuttings from lateral branches and shoots) in order to produce plants with upright growth[
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.
].
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2020-08-08. <tropical.theferns.info/viewtropical.php?id=Afrocarpus+usambarensis>

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