Transcript Wood anatomy slides – hardwood

Hardwood anatomy
Hardwoods - vessel element and pores
Vessel element
Fibers
Pore distribution – ring porous
Latewood
Earlywood
Latewood
Earlywood
Pore distribution – semi-ring porous
Latewood
Earlywood
Latewood
Earlywood
Pore distribution – diffuse porous
Latewood
Earlywood
Latewood
Earlywood
Pore distribution – ring porous
Latewood
Earlywood
Latewood
Pore distribution – diffuse porous
Earlywood
Latewood
Perforation plates
Simple perforation
plates
Perforation plates
Scalariform
perforation
plate
Inter-vessel pitting
alternate
linear/scalariform
opposite
Fibers
Fibers
Cell wall
Cell cavity
(lumen)
Fiber cell wall thickness variation
Elm
Aspen
Longitudinal parenchyma
Longitudinal parenchyma
(Wilson and White)
longitudinal parenchyma
Parenchyma - paratracheal
Surrounding
latewood pores
Paratracheal longitudinal parenchyma
Parenchyma surrounding latewood pores (Ash)
Parenchyma - apotracheal
Banded throughout
growth ring
Parenchyma – apotracheal
Banded throughout
growth ring
Parenchyma – paratracheal and apotracheal
Surrounding
pores
Banded
WAKE UP AT
THE BACK!!!
Rays
Ray parenchyma - cell types
upright
procumbent
Heterocellular
Homocellular
(Wheeler)
Rays – oak-type and uniseriate
Oak-type ray
Uniseriate rays
Rays - multiseriate
Multiseriate rays
Rays - uniseriate
Uniseriate rays
Rays – oak-type and uniseriate
Oak-type ray
Uniseriate rays
Rays – multiseriate and uniseriate
Multiseriate ray
Uniseriate ray
Rays – multiseriate and uniseriate
Multiseriate ray
Uniseriate ray
Maple
Birch
Rays - uniseriate
Uniseriate rays
Tyloses
http://www.apsnet.org/Education/LessonsPlantPath/WatermelonWilt/images/fig08.jpg
Tyloses
http://www.apsnet.org/Education/IllustratedGlossary/PhotosS-V/tylosis.jpg
http://www.amjbot.org/content/vol93/issue11/images/medium/coverfig.gif
Red oak
White oak
Anybody feel like this yet ?!
Hardwoods – common species
misidentification
Genuine mahogany
Red lauan
Red lauan – gum ducts
Red lauan – gum ducts
Maple
Birch
Maple
Birch
Aspen
Basswood
Aspen
Basswood