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Tephromela atra?
Tephromela atra
40.7114, -4.07757
Field Notes
Description:
Hard to identify. Probably Tephromela atra in an early state of colonization.
Thallus crustose, pale grey, cracked-areolate and warted, looking much like fossilised porridge; apothecia conspicuous and usually abundant, disks black, rims grey-white and crenulate, hymenium with purplish colours in section.
Habitat:
Usually on siliceous rock in very illuminated places.
This one on a granite wall.
Notes:
Camera Model: NIKON D300.
Exposure Time: 1/60 sec.
f/3.8
ISO Speed Rating: 200.
Focal Length: 90.0 mm.
Flash fired
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