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Lichen (5465493518)
 

 

 

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Description

Lichens (pronounced /ˈlaɪkən/,[1] sometimes /ˈlɪtʃən/[2]) are composite organisms consisting of a symbiotic association of a fungus (the mycobiont) with a photosynthetic partner (the photobiont or phycobiont), usually either a green alga (commonly Trebouxia) or cyanobacterium (commonly Nostoc).[3] The morphology, physiology and biochemistry of lichens are very different from those of the isolated fungus and alga in culture. Lichens occur in some of the most extreme environments on Earth—arctic tundra, hot deserts, rocky coasts, and toxic slag heaps. However, they are also abundant as epiphytes on leaves and branches in rain forests and temperate woodland, on bare rock, including walls and gravestones, and on exposed soil surfaces (e.g. Collema) in otherwise mesic habitats. Lichens are widespread and may be long-lived;[4] however, many are also vulnerable to environmental disturbance, and may be useful to scientists in assessing the effects of air pollution,[5][6][7] ozone depletion, and metal contamination. Lichens have also been used in making dyes and perfumes, as well as in traditional medicines.

from Wikipedia

Date
Source Lichen
Author Alex Proimos from Sydney, Australia
Camera location25° 36′ 08.86″ S, 54° 34′ 19.24″ W Kartographer map based on OpenStreetMap.View all coordinates using: OpenStreetMap - Google Earthinfo

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Photo's description:
Lichens (pronounced /ˈlaɪkən/,[1] sometimes /ˈlɪtʃən/[2]) are composite organisms consisting of a symbiotic association of a fungus (the mycobiont) with a photosynthetic partner (the photobiont or phycobiont), usually either a green alga (commonly Trebouxia) or cyanobacterium (commonly Nostoc).[3] The morphology, physiology and biochemistry of lichens are very different from those of the isolated fungus and alga in culture. Lichens occur in some of the most extreme environments on Earth—arctic tundra, hot deserts, rocky coasts, and toxic slag heaps. However, they are also abundant as epiphytes on leaves and branches in rain forests and temperate woodland, on bare rock, including walls and gravestones, and on exposed soil surfaces (e.g. Collema) in otherwise mesic habitats. Lichens are widespread and may be long-lived;[4] however, many are also vulnerable to environmental disturbance, and may be useful to scientists in assessing the effects of air pollution,[5][6][7] ozone depletion, and metal contamination. Lichens have also been used in making dyes and perfumes, as well as in traditional medicines. from Wikipedia


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EXIF data:
File name lichen__5465493518_.jpg
Size, Mbytes 1.7541318359375
Mime type image/jpeg
Camera manufacturer Canon
Camera model Canon EOS 5D
Orientation of image 1
Image resolution in width direction 72
Image resolution in height direction 72
Unit of X and Y resolution 2
Exposure time 1/400 sec (0.0025)
F number f / 5.6
Exposure program 2
ISO speed rating 400
Exif version 0220
Lens focal length 200 mm
Date and time original image was generated 2011:02:16 00:00:25
Date and time image was made digital data 2011:02:16 00:00:25
Shutter speed 8.625
Aperture 5
Exposure bias 0
Metering mode 6
Supported Flashpix version 0100
Color space information 65535
Exif image width 3218
Exif image length 2145
Focal plane X resolution 3086.9259259259
Focal plane Y resolution 3091.2954545455
Focal plane resolution unit 2
Software used QuickTime 7.6.6


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