MULBERRY (Morus macroura)
Nome comercial
Mulberry
Nome científico (autor)
Morus macroura Miq.
Família
MORACEAE
Nomes comuns
Mon luang (Thailand); Taw-posa (Myanmar); Kertau (Indonesia); Hole tanduk (Indonesia); Andalas (Indonesia)
Nome científico sinônimo (autor
Morus wittiorum var. mawu Koidz.; Morus macroura var. mawu (Koidz.) C.Y. Wu & Z.Y. C; Morus macroura var. macroura; Morus laevigata Wall.; Morus alba var. laevigata Bureau
DESCRIÇÃO DA ÁRVORE
Descrição botânica
Morus trees are described as small to fairly large, reaching up to 35 m in height and 150 cm of diameter, without buttresses.
Habitat natural
Morus macroura is found in evergreen rain forests, often on volcanic soils, between 400 to 2,500 m of altitude.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Occasionally vessels in tangential pattern. Occasionally vessels in diagonal and/or radial pattern. Wood semi-ring porous and/or ring porous. Occasionally vessels of two distinct diameter classes, wood not ring-porous. Occasionally vessel clusters common. Tylo Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Occasionally prismatic crystals in non-chambered axial parenchyma cells. Two cells per parenchyma strand. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Occasionally rays of two distinct sizes. Larger rays more than 4 seriate. Occasionally sheath cells. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Body ray cells procumbent w Fibers very thin walled. Fibers with simple to minutely bordered pits.
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Foto de madeira macroscópica (tangencial)
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Foto da secção transversal microscopica
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Cor
The white or pale yellow sapwood is clearly demarcated. The heartwood is yellow or yellowish brown, darkening upon exposure to golden or red brown.
Indice de cor
3
Grã
Straight grain is reported in this species.
Veios ou desenhos na superfície
The texture is typically moderately coarse.
Brilho
Luster is reported to be high, becoming dull after exposure.
DURABILIDADE NATURAL
This species is reported to be fairly durable, not susceptible to insect or fungal attack.
Indice de durabilidade natural
1
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.73
Densidade seca ao ar 12% (g/cm³)
0.83
Contração Tangencial Total (Saturado até peso seco) (%)
7.8
Contração Radial Total (Saturado até peso seco) (%)
4.4
Defeitos causados pela secagem
Ease of Drying: Kelat timber air dries slowly to very slowly. In Malaysia boards 15 mm thick are reported to dry in 5 months. Drying Defects: The timber is liable to end-splitting and checking. Kiln Schedules: Kiln drying requires a mild schedule. Pre-drying before kilning is advised to prevent serious degrade.
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.8
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
1064
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
113500
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
590
TRABALHABILIDADE
Serrar ou Cortar
Quarter-sawn boards present a decorative silver grain figure.
Aspectos do processamento em máquinas
Wood processing is reported to be easy.
Torneamento
30
Acabamento
It has a good finishing.
Steam Bending
The wood is very flexible when steamed.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
EXTERIOR GENERAL, bridges, stakes posts, HOUSING GENERAL, beams, FURNITURE AND CABINETS, cabinets, TURNING, SPORTS, NAVAL CONSTRUCTION
EXTERIOR
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Pontes
- 2 - 25 madeiras da amazonia de valor comercial, caracterizacao, macroscopica, usos comuns e indices qualificativos
Postes para cercas
- 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
CASAS
- 10 - Silica in Timbers
Vigas
- 11 - Prospect: The wood database
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Gabinetes
- 24 - Empire Timbers
Torneamento
- 30 - Embassy of Honduras in Japan
INSTRUMENTOS ESPORTIVOS
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
CONSTRUÇÃO NAVAL
- 55 - Tropical Timber Atlas of Latin America
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