Entity: LICHEN
Lichen is a complex plantlike organism consisting of an alga or cyanobacterium and a fungus in symbiotic association, typically found on solid surfaces like rocks or tree bark.
LICHEN
Etymology
The word 'lichen' originates from the Greek 'leichēn' meaning 'tree moss' and Latin 'lichen'. The Greek term comes from the verb 'leichein', meaning 'to lick'.
Definition
Lichen is a complex plantlike organism made up of a fungus and an alga or cyanobacterium in symbiotic association. It typically grows on solid surfaces such as rocks or tree bark, forming a distinctive thallus.
Historical Context
Lichens have been used in traditional medicine and dyes, with their presence indicating air quality. They have also been studied for their ecological importance.
Cultural Significance
Lichens have cultural significance in various societies, symbolizing resilience, adaptability, and harmony in nature.
Related Concepts
Lichens are related to mycorrhizae, mosses, and algae in terms of their symbiotic relationships and ecological roles.
See Also
A unique symbiotic organism composed of a fungus and an alga or cyanobacterium, forming a distinctive thallus that grows on various surfaces.