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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. Comments Common Names Common Uses Countries of Distribution Family Name Grain Heartwood Color Luster Movement in Service Natural Durability Numerical Data References Regions of Distribution Response to Hand Tools Sapwood Color Scientific Name Strength Properties Texture Toxicity Trade Name Tree Identification Tree Size Scientific Name Melanoxylon brauna Trade Name Arvore-da-chuva Family Name Leguminosae Common Names Arvore-da-chuva, Barauna, Barauna parda, Brauna, Brauna preta, Canela amarela, Garauna, Grauna, Grauna parda, Grauna preta, Guirauma, Ibira-una, Ibirauna, Ibirauva, Maria preta, Maria-preta de mata, Maria-preta do campo, Muirauna, Parovauna, Perovauna, Rabo de macaco Regions of Distribution Latin America Countries of Distribution  [VIEW MAP] Brazil Common Uses Bridge construction, Flooring, Furniture, Heavy construction, Joinery (external): ground contact, Mine timbers, Posts, Railroad ties, Structural work, Vehicle parts, Wheel spokes Heartwood Color Red White Green/grey Brown Pink Dark brown Black Sapwood Color Red White White to yellow Well defined Grain Figure Other (figure) Even Straight Interlocked Other figure Straight Interlocked Texture Coarse Medium Medium to coarse Medium Fine Luster Medium High Lustrous Natural Durability Perishable Non-durable Very durable Durable Toxicity Dermatitic effects Tree Identification Bole/stem form is straight Bole/stem form is not buttressed Tree Size Tree height is 20-30 m Tree height is 10-20 m Tree height is 30-40 m Comments General finishing qualities are rated as good Movement in Service Excellent Stability - Small Movement Response to Hand Tools Easy to Work Difficult to machine Easy to machine Strength Properties Density (dry weight) = 67-75 lbs/cu.ft Density (dry weight) = 61-67 lbs/cu. ft Density (dry weight) = 53-60 lbs/cu. ft Numerical Data Item Green Dry English Density 51 lbs/ft3 Weight 50 49 lbs/ft3 Item Green Dry Metric Density 817 kg/m3 References Gomes Mauro, J.,1978,Caracteres Silviculturais & Dendrologicos da Brauna (Melanoxylon brauna,Brasil Florestal 9(36) pp37-41 Howard, A.L.,1948,A Manual of Timbers of the World.,Macmillan & Co. Ltd. London 3rd ed. Mainieri, C.,1970,Madeiras Brasilieras,Sao Paulo Secretaria da Agricultra, Institulo Florestral Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University Press Record, S.J., Mell, C.D.,1924,Timbers of Tropical America,Yale Univ. Press Rizzini, C.T.,1978,Arvores e Madeiras Uteis do Brasil: Manual de Dendrologia Brasileira,Editora Edgard Blucher LTDA Brazil Wood, B., Calnan, D.,1976,Toxic Woods,British Journal of Dermat 94 Suppl. 13