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ARAPARI (Macrolobium acaciifolium)
Nome comercial
Arapari
Nome científico (autor)
Macrolobium acaciifolium (Benth.) Benth.
Família
LEGUMINOSAE
Nomes comuns
Espinito (Venezuela); Arepito (Venezuela); Huarango (Ecuador); Cutanga (Ecuador); Arapari (Bolivia); Pashaco (Peru); Aguano Pashaco (Peru); Arapari-Da-Várzea (Brazil); Arapari-Branco (Brazil); Arapari (Brazil); Angelim-Vermelho (Brazil)
Nome científico sinônimo (autor
Vuapa acaciifolia (Benth.) Kuntze; Vouapa acaciifolia (Benth.) Baill.; Outea acaciifolia Benth.
DESCRIÇÃO DA ÁRVORE
Descrição botânica
The trees are reported to reach heights of 30 m up to 40 m, with trunk diameters of 100 cm. They develop straight and cylindrical boles without buttresses, free of branches until half of the total tree length.
Habitat natural
Macrolobium acaciifolium is reported along river banks and lakes, growing on temporary inundable areas.
Distribuição natural
This species is reported to be distributed from Guyana, Surinam and Venezuela through the Acre river in Brazil and the Amazon, Nanay and Itaya rivers in Peru.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 200 micras or more (large). Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. I Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Occasionally prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells per parenchyma strand. Rays more than 10 per mm (abundant). Rays exclusively uniseriate. Prismatic crystals in radial alignment in procumbent ray cells (chambered cells). Prismatic crystals in the ray cells. Heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells p Fibers with simple to minutely bordered pits.
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Odor ou Cheiro
Odor and taste are reported to be indistinct.
Cor
The sapwood is gray, the heartwood is reddish brown in color.
Indice de cor
5
Grã
This species is reported to have straight grain.
Veios ou desenhos na superfície
The texture of the wood is medium.
Brilho
The wood surface is described as moderate in luster.
Indice de durabilidade natural
6
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.49
Densidade seca ao ar 12% (g/cm³)
0.53
Defeitos causados pela secagem
Ease of Drying: Drying is slow but without difficulties. Drying Defects: No particular risks of drying defects, subject to normal drying conditions. Kiln Schedules: Schedule proposed as a reference by comparison with well known species taking into account to the general technological behavior of this species.
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
897
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
112803
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
469
Dureza Janka a 12% (perpendicular) (kgf)
477
TRABALHABILIDADE
Aspectos do processamento em máquinas
Machining of this species is fair.
Acabamento
Finishing of this wood is easy.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
HOUSING GENERAL, fittings, PACKING
CASAS
- 10 - Silica in Timbers
Acessórios de madeira
- 19 - Silica in Timbers
PALETES PARA EMBALAGENS
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
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