1. Dendrology: The Scientific Study of Trees
Chapter 3
Classification and Anatomy of Trees

2. Define These Terms Dendrology Anatomy Physiology Needle-leaf
Scale-leaf
Cell
Permeable
Xylem
9. Tracheids
10. Gymnosperms
11. Angiosperms
12. Pholem
13. Cambium
14. Vascular rays
15. Heartwood
16. Sapwood

4. Needle-leaf Shapes

5. Scale-leaf Conifers

6. Scale-leaf Structure
Consists of a series of small scaly leaves that overlap.
They are attached to a branching stem.

7. Entire Margins

8. Entire Margins

9. Toothed Leaves
Alders
Birches
Cherries
Cottonwoods
Crabapples

10. Toothed Leaves
Elms
Hawthorns
Mulberries
Oaks
Willows

11. Lobed Leaves
Sweetgums
Sycamores
Yellow-Poplar

12. Lobed Leaves
Oaks
Sweetgums
Sassafras

13. Lobed Leaves
Maples
Mulberries

14. Pinnately Compound
Ashes
Elders
Hickories
Locusts

15. Pinnately Compound
Pecans
Sumacs
Walnuts

16. Bi-Pinnately Compound
Honey Locust

17. Palmately Compound
Buckeyes

20. Tracheid Cells
Tracheids
Pitts
Tracheid
Bundle

24. Angiosperms Bear seeds in an ovary
Includes all flowering trees Xylem contains only tracheid cells

25. Gymnosperms
Bear seeds in cones Includes pines, spruces, cedars Xylem contains tracheid cells and vessel elements

26. The End…………….. My Friend