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Lichens


Lichens
Photo Information
Copyright: ali moein (alimoein) (38)
Genre: Plants
Medium: Color
Date Taken: 2012-08-24
Categories: Lichens
Camera: Canon EOS 600D, Canon EF 100mm 2.8L IS macro
Exposure: f/4, 1/200 seconds
Photo Version: Original Version
Date Submitted: 2012-08-31 11:33
Viewed: 2090
Points: 4
[Note Guidelines] Photographer's Note
Lichens ( /ˈlaɪkən/,[1] sometimes /ˈlɪtʃən/)[2] are composite organisms consisting of a symbiotic relationship between a fungus (the mycobiont) and 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.
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Critiques [Translate]

  • Great 
  • lousat Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 6595 W: 89 N: 15659] (65489)
  • [2012-08-31 15:11]

Hi Ali,a very nice way to show us a particular of this lichen carpet,i like your focus in the middle and the soft composition around like a natural border,very good colors and light too.Have a nice weekend and thanks,Luciano

  • Great 
  • Bass Gold Star Critiquer/Gold Note Writer [C: 173 W: 0 N: 233] (974)
  • [2012-09-26 18:09]

Hi Ali,
Although its a very artistic composition, I would like to see more of this lichens, so a bit more of focus over some other parts would be great. I really like how you present this subjects, it´s not usual to see pictures like this, so compliments!
have a nice day, tfs
brenda

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