Lichens-Occurrence, Morphology, Internal Structure and Importance
What are Lichens? Lichens is the symbiotic association of fungus (mycobiont) and an alga (phycobiont). Many species of ascomycetes and few species of basidiomycetes are found growing in close association with one of the several genera of green or blue-green algae and constitute lichen thallus. Algae prepare organic food by photosynthesis and give it to the …