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Tree species and wood characteristics of Huali (GB / T 18107-2017)

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Mahogany GB / T 18107-2017   ? Appendix D   Tree species of Pyrus ussuriensis and their wood characteristics

Appendix D (informative)
Tree species of Pyrus ussuriensis and their wood characteristics

Andaman red sandalwood, hedgehog red sandalwood, Indian red sandalwood, big fruit red sandalwood, saccular red sandalwood

D. 1 Pterocarpus dalbergioides DC. (Leguminosae Pterocarpus)

Foreign trade name :Andaman padauk

Trees and distribution : arbor. Mainly produced in Andaman Islands, India.

Macroscopic structural features Porous wood Semi ring hole material The tendency is obvious. Heartwood Reddish brown to purplish reddish brown, often with black stripes. Growth ring Obviously. Tube hole It is obvious under the naked eye, and the number is small to a little less. Axial parenchyma It is obvious in large scale, mainly in the shape of ribbon and intermittent wing. Wood ray It can be seen in a larger context. Ripple mark I can see it under a magnifying glass. The water extract of sawdust showed yellow green to light blue fluorescence. No or very weak aroma; The structure is fine; The texture is typically interlaced (Fig. D.1).

 Macrostructure of Andaman red sandalwood

Figure D.1 photos of wood macrostructure

Microstructure characteristics catheter Most of them are single tube holes, and a few of them are multiple pipe holes (mostly 2-3); 2 / mm ²~ 5 / mm ²; Chord diameter 310 max µ m. Average 149 µ m。 The pits between the tubes are arranged with each other, and the pits are attached to the tubes; Single perforation, the pit type between the catheter and the ray is similar to that between the tube and the ray. Axial parenchyma They are winglike, poly pteriform and intermittently banded (most of them are 2-4 cells wide) and are concentric; Crystalloid cells were common in the cells; Overlapping. Wood fiber The wall is thin to thick and overlapped. Wood ray 13 pieces / mm ~ 15 pieces / mm; Overlapping. The cells were 3-14 cells high, and the tissues were of the same shape (Fig. D.2).

 Wood microstructure of Andaman red sandalwood

Figure D.2 photos of wood microstructure

Air dry density (12% water content) :0.69 g/cm ³~ 0.87 g/cm ³。

Standard materials : cafw4913 (India), cafw22640 (introduced from South Africa).

D. Pterocarpus erinaceus Poir. (Leguminosae Pterocarpus)

Foreign trade name :Ambila

Trees and distribution : arbor, up to 30 m in height and 0.6 m-0.9 m in DBH. It is mainly produced in tropical African countries, such as Senegal and guinea pig.

Macroscopic structural features Porous wood Semi porous wood The tendency is obvious. Heartwood Purplish red brown or reddish brown, often with dark stripes. Growth ring Slightly or distinctly. Tube hole Visible to the naked eye, the number is small to a little less. Axial thin wall group It is obvious or visible in the large-scale environment, mainly wing, poly wing and ribbon. Wood ray It's obvious under a magnifying glass. Ripple mark so The water extract of sawdust showed yellow green to light blue fluorescence. No or very weak aroma; The structure is fine; Texture interlacing (Fig. D.3).

 Wood macrostructure of Pterocarpus erinaceus

Figure D.3 photos of wood macrostructure

Microstructure characteristics catheter Most of them are single tube holes, and a few of them are multiple pipe holes (mostly 2-3); 2 / mm ²~ 7 / mm ²; Some of the holes contain red gum, and the maximum tangential diameter is 290 µ m. Average 177 µ m。 The pits between the tubes are arranged with each other, and the pits are attached to the tubes; Single perforation, the pit type between the catheter and the ray is similar to that between the tube and the ray. Axial parenchyma Most of them were 2-5 cells wide; Some of the cells were slightly enlarged; Overlapping. Wood fiber The wall is thin to thick and overlapped. Wood ray 12 pieces / mm ~ 15 pieces / mm; Overlapping. Single row rays (even two rows), 3 ~ 10 cells high, the ray tissue is the same as the single row (Fig. D.4).

 Wood microstructure of Pterocarpus erinaceus

Figure D.4 photos of wood microstructure

Air dry density (12% water content) : about 0.85 g / cm ³。

Specimen material : cafw17978 (guinea pig), cafw22641 (South Africa).

D. 3 Pterocarpus indicus Willd

Foreign trade name :Narra

Trees and distribution : arbor, 25 M-40 m in height and 1.5 m in DBH. The main products are India, Myanmar, Philippines, Malaysia and Indonesia; It has been introduced and cultivated in Guangdong, Guangxi, Hainan and Yunnan in China.

Macroscopic structural features Porous wood Semi ring hole material The tendency is obvious. Sapwood It is nearly white or light yellow, which is obviously different from heartwood. Heartwood Reddish brown, dark reddish brown or golden yellow, often with dark stripes of the same depth. The growth ring is obvious. The number of tube holes is small to a little less. Axial parenchyma Under the magnifying glass, it is obvious that it is banded and poly pterygoid. Wood ray It's visible under a magnifying glass, Ripple Obviously. The water extract of sawdust showed yellow green to light blue fluorescence. The fresh section is fragrant or weak; The structure is fine; The texture is oblique to slightly interlaced, with the famous amboyna tree bag (tumor) pattern. The color and density of these trees vary greatly (Fig. d.5).

 Wood macrostructure of Pterocarpus tinctorius

Figure d.5 photos of wood macrostructure

Microstructure characteristics catheter Most of them are single tube holes, and a few of them are multiple pipe holes (mostly 2-3); 1 / mm ²~ 12 / mm ²; It often contains yellow sediments with a maximum tangential diameter of 258 µ m. Average 141 µ m。 The pits between the tubes are arranged with each other, and the pits are attached to the tubes; Single perforation, the pit type between the catheter and the ray is similar to that between the tube and the ray. Axial parenchyma They are wing shaped, poly pteriform and banded (1-5 cells wide) in wavy shape; Crystalloid cells were common in the cells; Overlapping. Wood fiber The wall is thin to thick and overlapped. Wood ray 7 pieces / mm ~ 14 pieces / mm; Overlapping. The cells were 2-9 cells higher, and the tissues were of the same shape (Fig. d.6).

 Wood microstructure of red sandalwood from India

Figure d.6 photos of wood microstructure

Air dry density (12% water content) :0.53 g/cm ³~ 0.94 g/cm ³。

Specimen material : cafw21853 (Taiwan), cafw7721 (India), cafw9941 (Indonesia), cafw14156 (Indonesia), cafw20667 (Malaysia), cafw18888 (Philippines), cafw18936 (Papua New Guinea), cafw19016 (Papua New Guinea), cafw19465 (Papua New Guinea), cafw22642 (introduced from South Africa).

D. Pterocarpus macrocarpus Kurz (Leguminosae Pterocarpus)

Foreign trade name :Burma padauk

Trees and distribution : arbor, up to 33 m high, usually 10 M-25 m, DBH up to 1.2 m, usually 0.5 m-1.0 M. The main products are Thailand, Myanmar, Laos, Cambodia and Vietnam.

Macroscopic structural features Porous wood Semi ring hole material The tendency is obvious. Sapwood Gray white, obviously different from heartwood. Heartwood Orange, brick red or purplish red, often with dark stripes. Growth ring Obviously. Tube hole Visible to the naked eye, the number is small to a little less. Axial parenchyma It is obvious to the naked eye, mainly banded and poly pterygoid. Wood ray Under the magnifying glass, you can be a rabbit. Ripple mark Slightly or distinctly. The water extract of sawdust showed yellow green fertilizer to light blue fluorescence. The aroma is rich; The structure is fine; Texture interlacing (Fig. d.7).

 Wood macrostructure of Dalbergia macrocarpa

Figure d.7 photos of wood macrostructure

Microstructure characteristics catheter Most of them are single tube holes, and a few of them are multiple pipe holes (mostly 2-3); 1 / mm ²~ 15 / mm ²; It often contains yellow sediments with a maximum tangential diameter of 269 µ m. Average 127 µ m。 The pits between the tubes are arranged with each other, and the pits are attached to the tubes; Single perforation, the pit type between the catheter and the ray is similar to that between the tube and the ray. Axial parenchyma They are wing shaped, poly pterygoid and banded (most of them are 1-4 cells wide), mainly concentric; Crystalloid cells were common in the cells; Overlapping. Wood fiber The wall is thick and overlapped. Wood ray 9 pieces / mm ~ 12 pieces / mm; Overlapping. Single row rays (even two rows), 3-11 cells higher, and the same shape of the radiation tissue (Fig. d.8).

 Wood microstructure of Pterocarpus macrocarpa

Figure d.8 photos of wood microstructure

Air dry density (12% water content) :0.80 g/cm ³~ 1.01 g/cm ³。

Specimen material : cafw4281 (India), cafw13958 (Myanmar), cafw15230 (Myanmar), cafw15231 (Myanmar), cafw15310 (Myanmar), cafw15332 (Myanmar), cafw17838 (Myanmar), cafw15197 (Thailand), cafw19684 (Thailand), cafw20336 (Thailand).

D. Pterocarpus marsupium Roxb. (Leguminosae Pterocarpus)

Foreign trade name: bijasal

Trees and distribution: trees, up to 30 m high. The main products are India and Sri Lanka.

Macrostructure features: loose hole material and single ring hole material have obvious tendency. Heartwood golden yellow brown or light yellow purplish red brown, often with dark stripes. The growth ring is obvious. The number of tube holes is small. The axial parenchyma is obvious in naked eyes and mainly banded. It can be seen clearly under the wood ray magnifier. The ripple mark is slightly obvious or obvious. The water extract of sawdust showed yellow green to light blue fluorescence. No or very weak aroma; The structure is fine and the texture is interlaced (Fig. d.9).

 Macrostructure of sacriform Pterocarpus wood

Figure d.9 photos of wood macrostructure

Microstructure characteristics catheter Most of them are single tube holes, and a few of them are multiple pipe holes (mostly 2-3); 3 / mm ²~ 5 / mm ²; It often contains yellow sediments with a maximum tangential diameter of 344 µ m. Average 174 µ m。 The pits between the tubes are arranged with each other, and the pits are attached to the tubes; Single perforation, the pit type between the catheter and the ray is similar to that between the tube and the ray. Axial parenchyma They are wing shaped, poly pteriform and banded (most of them are 2-4 cells wide), and the main type is concentric; Crystalloid cells were common in the cells; Overlapping. Wood fiber Wall thickness, maximum diameter 20 µ m. Overlapping. Wood ray 11 pieces / mm ~ 14 pieces / mm; Overlapping. The cells were 2-12 cells high, and the tissues were of the same shape (Fig. d.10).

 Wood microstructure of sacriform Pterocarpus

Figure d.10 photos of wood microstructure

Air dry density (12% water content) :0.75 g/cm ³~ 0.80 g/cm ³。

Specimen material : cafw8513 (India), cafw22643 (introduced from South Africa).