Leprose lichen

Leprose lichen

Observation - Leprose lichen . Description: Greenish grey patches of leprose lichen growing on concrete (Hunstanton sea wall) but only underneath a rusting iron drainage door. In image (ii) lichen is located within the lip of door recess at bottom left and also at bottom of image on the right half

Greenish grey patches of leprose lichen growing on concrete (Hunstanton sea wall) but only underneath a rusting iron drainage door. In image (ii) lichen is located within the lip of door recess at bottom left and also at bottom of image on the right half of the iron staining. Possibly Psilolechia leprosa.