Softwood anatomy Longitudinal tracheids Earlywood and Latewood Earlywood
- Slides: 36
Softwood anatomy
Longitudinal tracheids
Earlywood and Latewood Earlywood
EW-LW transition - abrupt Latewood Earlywood
EW-LW transition - gradual Latewood Earlywood
EW-LW transition - intermediate Latewood Earlywood
EW-LW transition - abrupt Latewood Earlywood
EW-LW transition - gradual Latewood Earlywood
EW-LW transition - intermediate Earlywood Latewood
EW-LW transition - abrupt Earlywood Latewood
EW-LW transition - gradual Earlywood Latewood
Growth ring width variation Three very different growth rates (Douglas-fir all shown at the same magnification)
Bordered pits Inter-tracheid bordered pit
Bordered pits
Bordered pits – less common arrangements Paired Alternate
Longitudinal parenchyma
Longitudinal parenchyma
Resin canals
Resin canals Large diameter Small diameter
Resin canals Non-resinous Small resin canals Large resin canals
Resin canals White pine Lodgepole pine Spruce Douglas-fir 21
Resin canals Non-resinous Small resin canals Large resin canals
Resin canals Traumatic Paired Multiple
Rays – uniseriate rays Uniseriate rays
Rays – fusiform rays Fusiform ray (including horizontal resin canal)
Rays – fusiform rays Fusiform ray (including horizontal resin canal)
Spiral thickening on inside of cell wall
Spiral thickenings
Cross-field pitting
Cross-field pitting Lodgepole pine Red pine White spruce Douglas-fir
Cross-field details bordered pits between ray tracheids ray tracheid dentations bordered pits between ray tracheids and longitudinal tracheids semi-bordered pits
Hardwoods
Red alder – aggregate rays
Red alder – aggregate rays
Genuine mahogany Red lauan
Red lauan – gum ducts
- Cross field pits
- Longitudinal tracheids
- Softwood anatomy
- Is xylem polar or nonpolar
- Diffuse secondary growth
- Dermal tissue example
- Unit 5 softwood and hardwood
- Hardwood and softwood trees
- Superior meaning anatomy
- Characteristics of softwood
- Definition of stem cutting
- Draw and label transverse wave
- Longitudinal vs transverse waves
- Cross sectional and longitudinal research difference
- Longitudinal research and cross sectional research
- Dmsdo
- Double bottom tank ship
- Longitudinal dunes and barchan
- What type of wave is shown below?
- Transverse wave and longitudinal wave example
- Longitudinal study qualitative or quantitative
- Transverse wave vs longitudinal wave
- Transverse vs longitudinal waves
- Longitudinal research design example
- Forward cg vs aft cg
- Internal anatomy of the kidney
- Normal constituents of urine
- Elevated ridges “winding” around the brain
- Sequential vs longitudinal study
- Tensile strength formula
- Estudio descriptivo transversal
- Espuridad
- Whats a longitudinal wave
- What type of waves are sound waves? *
- Is echolocation transverse or longitudinal
- A physics teacher attaches a slinky to the wall
- Movimiento entrelazado soldadura