Lichen is 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. It will be brown in color when it dries out, but with recent rain, gray, green and yellow color returns. When working with elementary school children in Sabino Canyon, the naturalists often use the following phase:
“Alice Algae took a lichen to Freddie Fungus,
but now their relationship is on the rocks”.
- Were Weirdo Ediacarans Really Lichens, Fungi, and Slime Molds? (blogs.scientificamerican.com)
- The Natural Wonders of Lichens (beautifuldystopias.wordpress.com)
- I’m Lichen It!!!! (twolfgcd.wordpress.com)
- Lichen some winter colour! (loiselden.com)