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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. Boring Comments Common Names Common Uses Countries of Distribution Cutting Resistance Ease of Drying Environmental Profile Family Name Gluing Grain Heartwood Color Kiln Schedules Mortising Moulding Nailing Natural Durability Numerical Data Odor Planing Polishing References Regions of Distribution Resistance to Impregnation Response to Hand Tools Sapwood Color Scientific Name Screwing Strength Properties Texture Trade Name Tree Identification Tree Size Turning Veneering Qualities Scientific Name Monopetalanthus letestui Trade Name Andjung Family Name Caesalpiniaceae Common Names Andjung, Andoung, Andoung de le-testui, Eko, Ekop, Ekop andoung, Ekop mayo, Kika kayi, Mayo, N'douma, Zoele Regions of Distribution Africa Countries of Distribution  [VIEW MAP] Cameroon, Congo, Gabon, Guinea Common Uses Boat building (general), Boxes and crates, Cabinetmaking, Flooring, Furniture, Handles: general, Joinery, Ladders, Light construction, Matches, Plywood corestock, Plywood, Pulp/Paper products, Railroad ties, Sporting Goods, Toys, Vehicle parts Environmental Profile Abundant/Secure Extinct Rare Vulnerable Endangered Heartwood Color Brown Yellow Orange White to cream Yellow to golden-yellow to orange Red Purple Pale red to pink Sapwood Color Yellow Same as heartwood Grain Interlocked Interlocked Texture Medium Coarse Fine to medium Fine Natural Durability Very durable Resistant to attack from powder post (Lyctid & Bostrychid) beetles Non durable Moderately durable Susceptible to attack from termites (Isoptera) Susceptible to attack from powder post (Lyctid & Bostrychid) beetles Moderately resistant to termite (Isoptera) attack Odor Has an odor Kiln Schedules Drying (speed) is fast Ease of Drying Medium to High Shrinkage Reconditioning Treatement Fairly Easy Easy Tree Identification Bole/stem form is cylindrical Bole/stem form is buttressed Tree Size Tree height is 10-20 m Comments General finishing qualities are rated as good Boring Fair to good results Fairly easy to very easy Cutting Resistance Cutting Resistance with green wood is easy Cutting Resistance with dry wood is easy Gluing Fairly Easy to Very Easy Fair to Good Results Easy to glue Mortising Fair to Good Results Fairly Easy to Very Easy Moulding Fair to Good Results Fairly Easy to Very Easy Nailing Poor to Very Poor Results Easy to nail Planing Fair to Good Results Fairly Easy to Very Easy Planes to a poor finish Easy to plane Resistance to Impregnation Heartwood is moderately resistant Response to Hand Tools Easy to machine Screwing Fair to Good Results Fairly Easy to Very Easy Turning Fair to Good Results Fairly Easy to Very Easy Poor results Easy to turn Veneering Qualities Easy to cut Polishing Satisfactory results Strength Properties Shrinkage, Tangential = fairly large Shrinkage, Tangential = large Shrinkage, Radial = fairly large Max. crushing strength = medium Bending strength (MOR) = medium Bending strength (MOR) = high Shrinkage, Tangential = moderate Shrinkage, Radial = small Shrinkage, Radial = large Modulus of Elasticity (stiffness) = very low Shearing strength (parallel to grain) = very low Modulus of Elasticity (stiffness) = low Hardness (side grain) = soft Density (dry weight) = 38-45 lbs/cu. ft. Density (dry weight) = 31-37 lbs/cu. ft. Shearing strength (parallel to grain) = low Max. crushing strength = high Hardness (side grain) = medium Bending strength (MOR) = low Numerical Data Item Green Dry English Bending Strength 10851 16853 psi Density 36 lbs/ft3 Hardness 1215 lbs Maximum Crushing Strength 4513 7107 psi Shearing Strength 1107 psi Stiffness 1296 1503 1000 psi Weight 35 28 lbs/ft3 Radial Shrinkage 4 % Tangential Shrinkage 9 % Item Green Dry Metric Bending Strength 762 1184 kg/cm2 Density 576 kg/m3 Hardness 551 kg Maximum Crushing Strength 317 499 kg/cm2 Shearing Strength 77 kg/cm2 Stiffness 91 105 1000 kg/cm2 Weight 560 448 kg/m3 Radial Shrinkage 4 % References Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building Research 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 Hughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished data Letouzey, R., Mouranche, R.,1952,Ekop du Cammeroun,C.T.F.T,France Publ.,No.4 Sallenave, P.,1964,Proprietes Physiques et Mecaniques des Bois Tropicaux (Premier Supplement,C.T.F.T. Publ.,no.23 Sallenave, P.,1971,Proprietes Physiques et Mecaniques des Bois Tropicaux (Deuxieme,Supplement,C.T.F.T. Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7