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Falsely Colourised Scanning Electron Microscopy of Physcia adscendens | by Karl Gaff
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Falsely Colourised Scanning Electron Microscopy of Physcia adscendens

Physcia adscendens is common on trees in nitrogen-rich areas. It is also found on limestone outcrops and headstones. Its name ‘adscen-dens’ refers to the long rhizines that arise from the underside and curl upwards. The grey colour is due to the pigment atranorin. On close inspection, colonies of cyanobacteria (green) can be seen on the lichen surface.

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Uploaded on October 24, 2015