![](http://www.alamy.com/thumbs/6/4695014F-26D4-42E5-BC8C-59016FDBC1AA/AE1R2T.jpg)
Crustose lichen
A crustose encrusted lichen growing on rock in the Italian Alps Lichens are a symbiotic association between a fungus and a photosynthesizing alga or cyanobacterium
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Photo credit: © RanaPics / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: attached, autotroph, crustose, ecological, encrusted, fungus, interdependent, interrelated, lichen, mutualism, mutualistic, mycobiont, organisms, photobiont, photosynthesis, photosynthesizer, pioneer, relationship, rock, species, succession, symbiosis, symbiotic, yellow