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Hardwood anatomy.

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Presentation on theme: "Hardwood anatomy."— Presentation transcript:

1 Hardwood anatomy

2 Hardwoods - vessel element and pores
Fibers Vessel element

3 Pore distribution – ring porous
Latewood Earlywood Latewood Earlywood

4 Pore distribution – semi-ring porous
Latewood Earlywood Latewood Earlywood

5 Pore distribution – diffuse porous
Latewood Earlywood Latewood Earlywood

6 Pore distribution – ring porous
Latewood Earlywood Latewood

7 Pore distribution – diffuse porous
Earlywood Latewood

8 Perforation plates Simple perforation plates

9 Perforation plates Scalariform perforation plate

10 Inter-vessel pitting opposite alternate linear/scalariform

11 Fibers

12 Fibers Cell wall Cell cavity (lumen)

13 Fiber cell wall thickness variation
Elm Aspen

14 Longitudinal parenchyma

15 Longitudinal parenchyma
(Wilson and White) longitudinal parenchyma

16 Parenchyma - paratracheal
Surrounding latewood pores

17 Paratracheal longitudinal parenchyma
Parenchyma surrounding latewood pores (Ash)

18 Parenchyma - apotracheal
Banded throughout growth ring

19 Parenchyma – apotracheal
Banded throughout growth ring

20 Parenchyma – paratracheal and apotracheal
Surrounding pores Banded

21 WAKE UP AT THE BACK!!!

22 Rays

23 Ray parenchyma - cell types
upright procumbent Heterocellular Homocellular (Wheeler)

24 Rays – oak-type and uniseriate
Uniseriate rays Oak-type ray

25 Rays - multiseriate Multiseriate rays

26 Rays - uniseriate Uniseriate rays

27 Rays – oak-type and uniseriate
Oak-type ray Uniseriate rays

28 Rays – multiseriate and uniseriate
Multiseriate ray Uniseriate ray

29 Rays – multiseriate and uniseriate
Uniseriate ray Multiseriate ray

30 Birch Maple

31 Rays - uniseriate Uniseriate rays

32 Tyloses

33 Tyloses

34 Red oak White oak

35 Anybody feel like this yet ?!

36 Hardwoods – common species misidentification

37 Genuine mahogany Red lauan

38 Red lauan – gum ducts

39 Red lauan – gum ducts

40 Birch Maple

41 Birch Maple

42 Aspen Basswood

43 Basswood Aspen


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