1. Today’s Agenda… 3-20 Bellringer: Earth’s Structure BrainPop
Review Plants
Notes on Seedless Plants – Study Pack #2

2. Seedless Plants
Study Pack #2

3. Today’s Goals…
I can compare and contrast seedless nonvascular plants and seedless vascular plants.
I can identify the importance of some nonvascular and vascular plants.

4. Mosses and Liverworts Small Live on bark, rocks, and soil
No vascular system
Must live in places that are wet
No true roots, stems, or leaves

5. Mosses

6. Liverworts

7. Mosses and Liverworts Live together in large groups
Covering soil or rocks in a mat of tiny green plants
Each moss has rhizoids (root-like structures)
Rhizoids help anchor the plant

8. Importance of Mosses and Liverworts:
Usually the first plants to inhabit a new environment.
Form a thin layer of soil when they die.
They help hold the soil in place which prevents erosion.
Nesting material for birds.
Peat moss can be burned as fuel.

9. Ferns, Horsetails, and Club Mosses:
Grow tall
Have vascular systems

10. Ferns

11. Ferns Can grow almost anywhere.
Have an underground stem called a rhizome.
Leaves are called fronds.

12. Horsetails

13. Horsetails Small vascular plants. Grow less than 1.3 meters tall.
Grow in wet, marshy places.
Stems are hollow and contain cilia.
Pioneers used them to scrub pots and pans.

14. Club Mosses 25 cm tall. Grow in woodlands.
Unlike other mosses, they have vascular tissue.

15. Importance of Seedless Vascular Plants
Help form soil when they die.
Also hold soil in place to prevent erosion.
Ferns serve as house plants.
Some are cooked and eaten.
Formed coal.

16. Homework
Worksheet