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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. Blunting Effect 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 Routing & Recessing Sanding Scientific Name Texture Toxicity Trade Name Tree Identification Tree Size Scientific Name Fagara brieyi Trade Name Bongo Family Name Rutaceae Common Names Bongo, Nongo, Olon Regions of Distribution Africa Countries of Distribution  [VIEW MAP] Cameroon Common Uses Furniture, Joinery, Paneling, Plywood, Pulp/Paper products, Veneer: decorative Heartwood Color Brown Red Purple Green/grey Grain Figure Interlocked Distinct (figure) Interlocked Distinct figure Texture Fine Fine to medium Natural Durability Perishable Durable Non-durable Susceptible to insect attack Non-resistant to termites Non-resistant to powder post beetles Susceptible to attack from termites (Isoptera) Toxicity Some toxic effects Kiln Schedules Drying (speed) is fast Drying Defects Distortion Splitting Checking Ease of Drying Slowly Easy Kiln Drying Rate Naturally dries slowly Very slow Drying rate is slow Slow Tree Identification Bole/stem form is not buttressed Tree Size Tree height is 20-30 m Sapwood width is 0-5 cm Bole length is 10-20 m Tree height is 30-40 m Trunk diameter is 100-150 cm Blunting Effect Little Cutting Resistance Easy to saw Gluing Fairly Easy to Very Easy Easy to glue Mortising Fairly Easy to Very Easy Very Good to Excellent Results Fair to Good Results Moulding Fairly Easy to Very Easy Very Good to Excellent Results Fair to Good Results Movement in Service Fair to Good Stability - Medium Movement Small Nailing Fairly Difficult to Very Difficult Fairly Easy to Very Easy Easy to nail Planing Fairly Easy to Very Easy Fair to Good Results Very Good to Excellent Results Difficult to plane Resistance to Impregnation Resistant sapwood Resistant heartwood Response to Hand Tools Easy to Work Easy to machine Routing & Recessing Fairly Easy to Very Easy Very Good to Excellent Results Fair to Good Results Sanding Very Good to Excellent Results Fair to Good Results Polishing Fair to Good Results Good results Numerical Data Item Green Dry English References Bois et Forets des Tropiques,1949,Olon (Fagara heitzii and Fagara brieyi,Bois et Forets des Tropiques,No.10,pp175-8 Hughes, J.F.,1971,The Principal Timber Trees of Cameroon,Unpublished data