1. Take 5 2/14/11 How do non-seed plants reproduce?
What needs to present in order for non-seed plants to reproduce?
Why are seeds a more effective means or reproduction?
spores
water
Protects the embryo
Aid in dispersal
Provide food for embryo
Keeps embryo from drying out

2. 3 NONVASCULAR PLANTS

3. BRYOPHYTA ex: Sphagnum (peat moss) ex: “Moss” Most familiar
Small plants with leafy stems
Leaves are 1 cell thick
Use rhizoids to anchor
Dense carpet
Slows erosion

4. MOSS

5. BRYOPHYTA http://www.youtube.com/watch?v=AAgPXZuwSR0
Assignment Discovery: Mosses (1.55)
MOSS REPRODUCTION (1.03)
Camping Vol 6

6. HEPATICOPHYTA “Liverworts” Ex: Marchantia
Leafy liverworts have flat stems, leaves arranged in 3 rows, rhizoids
Body of thallose liverwort = “thallus”
Categorized as leafy or thallose
Flattened body resembles animal liver
Moist habitat
Grows in clumps/masses

7. LIVERWORTS

8. LIVERWORTS

9. HEPATICOPHYTA http://www.youtube.com/watch?v=ALGDLzWcvnU
Airborne sperm of liverworts
VIDEO COMBINING LIVERWORTS AND MOSSES AS BRYOPHTES (3.28)

10. ANTHOCEROPHYTA “Hornworts” Smallest division Thallose bodies
Sporophyte resembles a horn
Sporophyte produces most of food for both generations

11. HORNWORTS

12. HORNWORTS