1. Wood Types

2. Coniferous Diffuse Porous Ring Porous

3. Conifers: radial files of cells (for most species)
Note: colors are inverted! This is an x-ray!

5. Conifers: radial files of cells (for most species)

6. Tracheids Resin ducts Horizontal rays
Conifers: radial files of cells (for most species)
Tracheids
Resin ducts
Horizontal rays

7. Conifers: radial files of cells (for most species)

8. Southern Pines Ponderosa Pine Red Pine
Yellow Pines = thick latewood
Southern Pines Ponderosa Pine Red Pine

9. White Pines = thin latewood
Eastern White Pine Western White Pine Sugar Pine

10. Balsam Fir White Fir Grand Fir

11. Wood Type 1: Conifer Wood

12. Wood Type 1: Conifer Wood

13. Wood Type 1: Conifer Wood

14. Ring porous: large earlywood vessels

16. Ring porous: large earlywood vessels
Fibers
Rays

17. Chestnut and Oak
Elm and Hackberry
Sassafras and Black Locust
Hickory and Pecan

19. Oaks rarely have missing rings but they can have very compressed growth.

20. Oak often exhibits an offset in the rings across rays.

21. Diffuse porous: small vessels throughout

22. Diffuse porous: small vessels throughout
Fibers
Rays

23. Sugar Maple Red Maple Dogwood

24. American Holly Black Cherry Tulip-Poplar