Question

find out type of lichens and its economic importance​

Answer 1

Answer:

Economic importance of lichens is as follows: They are a good pollution indicators. ... Some lichens such as Pseudorina and Evernia are used in the production of perfume and essential oils. Litmus which is a dye used as an indicator of acid and base, is obtained from lichens Roccella tinctoria and Lasallia pustulata.

Explanation:

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Answer 2

Certain species of lichens are valuable sources of food. Most important of these are the fruticose lichen Cladonia rangiferina (Reindeer Moss) and other tundra lichens which serve as food for reindeer, caribou, musk ox and other wild animals of the Arctic tundra zone. A few species have been used as food by manman.