Question

Is lichen harmful to humans?

Answer 1

Lichen:

1. Lichens are the organisms that exhibit the symbiotic relationship between fungus and algae.
2. Some species of lichen are harmful to humans.
3. Usnic acid is found in the Usnea genus of lichen.
4. It has many medicinal properties but it can cause serious liver damage in humans.
5. Another one is wolf lichen which contains a poisonous chemical called vulpinic acid that is harmful to mammals.