Tuesday, July 15, 2014

Map Lichen (Rhizocarpon geographicum) in ultra violet light

The map lichen (Rhizocarpon geographicum) is a species of lichen distributed on rocks, in areas with low air pollution. This is a specimen from the Carpathian Mountains grown on silicate rock (granite). Under long wave ultra violet light (365 nm) the yellow turns to red color, an effect that can be observed by several yellow lichen species. With a shorter wave length of the ultra violet light (254 nm) the color changes to green.

map lichen Rhizocarpon geographicum macro photo in ultra violet light
In ultra violet light (365 nm).

macro photo of map lichen Rhizocarpon geographicum in ultra violet light
With a wave length of 254 nm. 

map lichen Rhizocarpon geographicum close up photo
And in visible light.


  1. Hi Many thanks for your visit!:) It's amazing how the diflferent light changes the appearance of the yellow lichen. Our granite walls are covered in this kind of Lichen. We live high up in the mountains,where there is little (pollution.

  2. Beautiful photos, wonderful lichens, exquisite colors!

  3. Wonderful images! I have been away for 13 days, traveling. Will be posting some good photos, some just ok, and maybe a few bad(still getting used to the new camera!), in the weeks to come. It was a great trip!


Thank you for the comment and the visit.

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