Clicking
any heading in the main data area (at right) will scroll the page back
to this top position.
Use the following links to
jump to the associated section in the main data.
Blunting Effect
Boring
Comments
Common Names
Common Uses
Countries of Distribution
Cutting Resistance
Drying Defects
Ease of Drying
Family Name
Gluing
Grain
Heartwood Color
Kiln Drying Rate
Kiln Schedules
Mortising
Moulding
Movement in Service
Nailing
Natural Durability
Numerical Data
Planing
Polishing
References
Regions of Distribution
Resistance to Impregnation
Response to Hand Tools
Sapwood Color
Scientific Name
Strength Properties
Texture
Trade Name
Tree Identification
Tree Size
| |
Common Names
Bocapi, Mbonda, Menga-menga, Niove
Regions of Distribution
Africa
Countries of Distribution
[VIEW MAP]
Cameroon, Congo, Gabon
Common Uses
Brush backs & handles, Cabinetmaking, Chairs, Flooring, Heavy construction, Joinery, Light construction, Oars, Railroad ties, Tool handles, Vats, Vehicle parts, Veneer: decorative
Heartwood Color
| Red |
|
|
|
|
|
|
|
|
|
|
|
|
| Brown |
|
|
|
|
|
|
|
|
|
|
|
|
| Pink |
|
|
|
|
|
|
|
|
|
|
|
|
| Purple |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Red |
|
|
|
|
|
|
|
|
|
|
|
|
| Yellow to golden-yellow to orange |
|
|
|
|
|
|
|
|
|
|
|
|
| Reddish brown |
|
|
|
|
|
|
|
|
|
|
|
|
| Brown |
|
|
|
|
|
|
|
|
|
|
|
|
Sapwood Color
| White |
|
|
|
|
|
|
|
|
|
|
|
|
| Yellow |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| White to yellow |
|
|
|
|
|
|
|
|
|
|
|
|
Grain
Texture
Natural Durability
| Moderately durable |
|
|
|
|
|
|
|
|
|
|
|
|
| Resistant to termites |
|
|
|
|
|
|
|
|
|
|
|
|
| Non-resistant to powder post beetles |
|
|
|
|
|
|
|
|
|
|
|
|
| Susceptible to insect attack |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Resistant to attack from termites (Isoptera) |
|
|
|
|
|
|
|
|
|
|
|
|
| Resistant to attack from powder post (Lyctid & Bostrychid) beetles |
|
|
|
|
|
|
|
|
|
|
|
|
| Durable |
|
|
|
|
|
|
|
|
|
|
|
|
| Very durable |
|
|
|
|
|
|
|
|
|
|
|
|
| Susceptible to attack from powder post (Lyctid & Bostrychid) beetles |
|
|
|
|
|
|
|
|
|
|
|
|
Kiln Schedules
Drying Defects
| Distortion |
|
|
|
|
|
|
|
|
|
|
|
|
| Collapse |
|
|
|
|
|
|
|
|
|
|
|
|
| Internal Honeycombing Possible |
|
|
|
|
|
|
|
|
|
|
|
|
| Splitting |
|
|
|
|
|
|
|
|
|
|
|
|
| Checking |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Moderate surface checking |
|
|
|
|
|
|
|
|
|
|
|
|
Ease of Drying
Kiln Drying Rate
| Very slow |
|
|
|
|
|
|
|
|
|
|
|
|
| Naturally dries slowly |
|
|
|
|
|
|
|
|
|
|
|
|
| Drying rate is slow |
|
|
|
|
|
|
|
|
|
|
|
|
Tree Identification
| Bole/stem form is not buttressed |
|
|
|
|
|
|
|
|
|
|
|
|
| Bole/stem form is fluted |
|
|
|
|
|
|
|
|
|
|
|
|
Tree Size
| Tree height is 10-20 m |
|
|
|
|
|
|
|
|
|
|
|
|
| Bark width is 15-20 mm |
|
|
|
|
|
|
|
|
|
|
|
|
| Bark width is 20-25 mm |
|
|
|
|
|
|
|
|
|
|
|
|
| Bole length is 0-10 m |
|
|
|
|
|
|
|
|
|
|
|
|
| Sapwood width is 5-10 cm |
|
|
|
|
|
|
|
|
|
|
|
|
| Tree height is 0-10 m |
|
|
|
|
|
|
|
|
|
|
|
|
| Bark width is 10-15 mm |
|
|
|
|
|
|
|
|
|
|
|
|
| Tree height is 20-30 m |
|
|
|
|
|
|
|
|
|
|
|
|
Comments
General finishing qualities are rated as good
Blunting Effect
| Blunting effect on machining is fairly severe |
|
|
|
|
|
|
|
|
|
|
|
|
Boring
| Fair to good results |
|
|
|
|
|
|
|
|
|
|
|
|
| Fairly easy to very easy |
|
|
|
|
|
|
|
|
|
|
|
|
Cutting Resistance
| Easy to saw |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Cutting Resistance with green wood is easy |
|
|
|
|
|
|
|
|
|
|
|
|
| Cutting Resistance with dry wood is easy |
|
|
|
|
|
|
|
|
|
|
|
|
Gluing
Mortising
Moulding
| Fair to Good Results |
|
|
|
|
|
|
|
|
|
|
|
|
| Very Good to Excellent Results |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Easy to mould |
|
|
|
|
|
|
|
|
|
|
|
|
Movement in Service
| Fair to Good Stability - Medium Movement |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Small |
|
|
|
|
|
|
|
|
|
|
|
|
Nailing
Planing
| Very Good to Excellent Results |
|
|
|
|
|
|
|
|
|
|
|
|
| Fair to Good Results |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Easy to plane |
|
|
|
|
|
|
|
|
|
|
|
|
| Planes well, to a good finish |
|
|
|
|
|
|
|
|
|
|
|
|
Resistance to Impregnation
| Permeable sapwood |
|
|
|
|
|
|
|
|
|
|
|
|
| Resistant heartwood |
|
|
|
|
|
|
|
|
|
|
|
|
| Resistant sapwood |
|
|
|
|
|
|
|
|
|
|
|
|
| | | | | | | | | | | | |
| Heartwood is extremely resistant |
|
|
|
|
|
|
|
|
|
|
|
|
Response to Hand Tools
| Moderate working qualities |
|
|
|
|
|
|
|
|
|
|
|
|
| Easy to machine |
|
|
|
|
|
|
|
|
|
|
|
|
Polishing
| Satisfactory results |
|
|
|
|
|
|
|
|
|
|
|
|
| Good results |
|
|
|
|
|
|
|
|
|
|
|
|
Strength Properties
| Density (dry weight) = 61-67 lbs/cu. ft |
|
|
|
|
|
|
|
|
|
|
|
|
| Density (dry weight) = 53-60 lbs/cu. ft |
|
|
|
|
|
|
|
|
|
|
|
|
| Bending strength (MOR) = very high |
|
|
|
|
|
|
|
|
|
|
|
|
| Bending strength (MOR) = medium |
|
|
|
|
|
|
|
|
|
|
|
|
| Bending strength (MOR) = high |
|
|
|
|
|
|
|
|
|
|
|
|
Numerical Data
| Item | Green | Dry | English |
| | | |
| Bending Strength | 14597 | 21597 | psi |
| Density | | 58 | lbs/ft3 |
| Weight | 57 | 46 | lbs/ft3 |
| | | |
| Item | Green | Dry | Metric |
| | | |
| Bending Strength | 1026 | 1518 | kg/cm2 |
| Density | | 929 | kg/m3 |
References
Bertin, A., Meniaud, J.,1949,Timbers of the Cameroons,Compagnie Francais du Cameroon,(Transl. by F.Jane)
Bois et Forets des Tropiques,1947,Niove (Staudtia gabonensis and S. kamerunensis,Bois et Forets des Tropiques,No.2,pp63-66
Erfurth, T., Rusche, H.,1976,The Marketing of Tropical Wood A. Wood Species from African Moist Forests,F.A.O. Forestry Department
France - C.T.F.T.,1966,Bois Tropicaux,C.T.F.T. Publ.,12
Garratt, G.A.,1933,Systematic anatomy of the woods of the Myristicacaeae,Tropical Woods,5(35,pp6-48
Hughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished data
Revue des Bois et de ses Applications,1948,Bois Coloniaux - Niove (Staudtia gabonensis,Revue des Bois et de ses Applications,3(4,p32
|
|