1. Lichen and Mycorrhizae
By Reuben Vandezande

2. Lichens
A fungus that grows symbiotically with algae, resulting in a composite organism that characteristically forms a crust-like or branching growth on rocks or tree trunks.(Wikipedia)

3. Pictures
Tube Lichen

4. Pictures
Green Shield Lichen

5. Pictures
Grisley Beard Lichen

6. Mycorrhizae
Mycorrhizae are symbiotic associations that form between the roots of most plant species and fungi.

7. Pictures

8. Pictures
White Truffle

9. Pictures
Redwood seedlings with, right, and without, left, mycorrhizae

10. Importance of Lichen and Mycorrhizae
They provide a place for algae to survive in harsh conditions (lichen)
They absorb anything in the air, especially pollutants (lichen)
Provide nutrients for host plants by increasing the rate of decomposition in the root area of the plant (mycorrhizae)

11. Life cycle

12. Interesting Facts
Lichens are many times the first organism to settle in an area with no soil
It is estimated that lichens cover 8% of the earth
Some Lichens may be over 10,00 years old, in the Antarctic
Some mycorrhizae can protect roots from other fungus