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AMAPA (Parahancornia amapa)
Nome comercial
Amapa
Nome científico (autor)
Parahancornia amapa (Huber) Ducke
Família
APOCYNACEAE
Nomes comuns
Amapa (Brazil); Amapá-Amargoso (Brazil); Amapá-Amargo (Brazil); Amapá (Brazil)
Nome científico sinônimo (autor
Hancornia amapa Huber
DESCRIÇÃO DA ÁRVORE
Descrição botânica
It is a tall tree, sometimes over 35 m long, with diameters occasionally up to 90 cm. This tree is used as a source of medicine, and it is a minor source of gutta percha. It presents abundant latex.
Habitat natural
Parahancornia amapa is reported to grow in humid sites of terra firme forests, always close to rivers and streams.
Distribuição natural
It is found in the Amazon basin. In Brazil it is reported in Manaus and Para states.
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 100 to 150 micras (small). Vessels per mm2 6 to 10 (medium). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Inte Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Prismatic crystals in non-chambered axial parenchyma cells. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays commonly 2 seriate. Prismatic crystals in radial alignment in procumbent ray cells (chambered cells). Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Fibers with distinctly bordered pits.
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Cor
The color of the heartwood is usually cream white to light brown.
Grã
The grain is straight.
Veios ou desenhos na superfície
The wood has a fine texture.
DURABILIDADE NATURAL
Natural durability of P. amapa is reported to be poor, it can be attacked by fungi, termites and dry wood insects.
Indice de durabilidade natural
5
Tratamento preservativo
Heartwood is considered to be moderately difficult to preserve.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.57
Densidade seca ao ar 12% (g/cm³)
0.63
Contração Tangencial Total (Saturado até peso seco) (%)
8.1
Contração Radial Total (Saturado até peso seco) (%)
4.6
Defeitos causados pela secagem
Ease of Drying: It is difficult to air season. Drying Defects: When dried at a fast to moderate rate it develops moderate crook and surface checking. Risk of casehardening in thick pieces. Kiln Schedules: This species must be dried slowly.
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)
723
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
108014
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
448
TRABALHABILIDADE
Serrar ou Cortar
Wood of this species is easy to cut.
Desdobro da tora em torno para lâminas
This species is interesting for peeling.
Desdobro da tora em faqueadeira para lâminas
This species is interesting for peeling.
Desgaste de ferramentas
It is considered to have a slight blunting effect on the cutting elements.
Aspectos do processamento em máquinas
This species is easy to machine.
Aplainamento
It is easy to plane.
Comportamento na aplicação de pregos
It has a mediocre holding of nails.
Colagem
This species is easy to glue.
Acabamento
It is easy to finish.
Operação de lustre da superfície (brilho)
Polishing of this species is reportedly easy.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
HOUSING GENERAL, beams, boards, panelling, fittings, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, cores, common veneer, PACKING, light packing, OTHER AND MUSICAL INSTRUMENTS, handicrafts, matches, moldings
CASAS
- 10 - Silica in Timbers
Vigas
- 11 - Prospect: The wood database
Tábuas
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Painéis
- 18 - W3TROPICOS Missouri Botanical Garden
Acessórios de madeira
- 19 - Silica in Timbers
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Móveis comuns
- 23 - Handbook of Hardwoods
CHAPAS
- 25 - Directory of Timber Trade Malaysia
Lâminas de miolo das chapas
- 27 - Embassy of Brazil in Japan
Lâminas de origem rotativa
- 29 - Embassy of Ecuador in Japan
PALETES PARA EMBALAGENS
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Caixotaria leve
- 46 - ECUADOR, Inventario y Aprovechamiento de los Bosques del Sur Ecuatoriano
Artesanato
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Pau de fósforo
- 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
Molduras de quadros
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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