Hardwood anatomy

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
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Parenchyma - paratracheal
Surrounding latewood pores
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Paratracheal longitudinal parenchyma
Parenchyma surrounding latewood pores (Ash)
18
Parenchyma - apotracheal
Banded throughout growth ring
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Parenchyma apotracheal
Banded throughout growth ring
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Parenchyma paratracheal and apotracheal
Surrounding pores
Banded
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WAKE UP AT THE BACK!!!
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Rays
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Ray parenchyma - cell types
upright
procumbent
Heterocellular
Homocellular
(Wheeler)
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Rays oak-type and uniseriate
Uniseriate rays
Oak-type ray
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Rays - multiseriate
Multiseriate rays
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Rays - uniseriate
Uniseriate rays
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Rays oak-type and uniseriate
Oak-type ray
Uniseriate rays
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Rays multiseriate and uniseriate
Uniseriate ray
Multiseriate ray
29
Rays multiseriate and uniseriate
Uniseriate ray
Multiseriate ray
30
Birch
Maple
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Rays - uniseriate
Uniseriate rays
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Tyloses
http//www.apsnet.org/Education/LessonsPlantPath/W
atermelonWilt/images/fig08.jpg
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Tyloses
http//www.apsnet.org/Education/IllustratedGlossar
y/PhotosS-V/tylosis.jpg
http//www.amjbot.org/content/vol93/issue11/images
/medium/coverfig.gif
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Red oak
White oak
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Anybody feel like this yet ?!
36
Hardwoods common species misidentification
37
Genuine mahogany
Red lauan
38
Red lauan gum ducts
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Red lauan gum ducts
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Birch
Maple
41
Birch
Maple
42
Aspen
Basswood
43
Basswood
Aspen