Map Lichen is a photograph by Dr Jeremy Burgess/science Photo Library which was uploaded on September 15th, 2018.
Map Lichen
Map lichen (Rhizocarpon geographica) growing on a granite gravestone. This type of lichen is known as saxicolous lichen as it grows on or among... more
Title
Map Lichen
Artist
Dr Jeremy Burgess/science Photo Library
Medium
Photograph
Description
Map lichen (Rhizocarpon geographica) growing on a granite gravestone. This type of lichen is known as saxicolous lichen as it grows on or among rocks. A lichen is a mutualistic organism comprising an alga and a fungus that live in a mutually-beneficial relationship. The alga produces carbohydrates for the fungus by photosynthesis, and the fungus protects the alga from harsh conditions. Lichens are highly sensitive to pollution: several are used as indicator species for sulphur dioxide levels in the atmosphere.
Uploaded
September 15th, 2018
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