Macrophotograph Of A Lichen #1 is a photograph by Dr Jeremy Burgess which was uploaded on December 15th, 2014.
Macrophotograph Of A Lichen #1
Macrophotograph of a lichen Xanthoria aureola, growing on a gravestone in a Norfolk, UK, churchyard. The dark orange discs are the apothecia or spore... more
Title
Macrophotograph Of A Lichen #1
Artist
Dr Jeremy Burgess
Medium
Photograph
Description
Macrophotograph of a lichen Xanthoria aureola, growing on a gravestone in a Norfolk, UK, churchyard. The dark orange discs are the apothecia or spore producing bodies. The yellowish area is the crustose (crustlike) thallus or plant body. Symbiotic organisms, lichens consist of an algal & a fungal partner. The fungus benefits from the photosynthetic activity of the alga. The advantage to the alga remains unclear, but may lie in protection from drought & intense light. Slow growing organisms (1-2mm per year), they live to immense ages, colonising tree trunks, soil, rock, & mortar. Lichens are sensitive to sulphur dioxide & hence used to monitor air pollution.
Uploaded
December 15th, 2014
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