Coldwaterjohn's photos with the keyword: roof

Usnea is very sensitive to air pollution and so is normally only found growing in clean air environments. Some species of Usnea are more sensitive to air pollutants than others. Characteristics Generally grows hanging from tree branches Thread like, resembling a grey beard Common names Old Man's Beard, Beard Lichen, or Treemoss. Usnea has been used in medicine for at least 1,000 years. Usnic acid, found in most species, has strong antibiotic and antifungal properties This lichen is actually edible and high in vitamin C. Though we don't recommend trying it!

Nitrogen-sensitive Close-up of Evernia lichen Evernia is a bushy lichen that is sensitive to air pollution, so is usually found in clean air environments. It is abundant on branches and twigs of trees and shrubs in the countryside. Characteristics Green on top and white on the bottom Divides evenly into 'forks' Not to be confused with Ramalina, which is green on both top and bottom and divides unevenly. Common name Oakmoss

Nitrogen-sensitive Evernia is a bushy lichen that is sensitive to air pollution, so is usually found in clean air environments. It is abundant on branches and twigs of trees and shrubs in the countryside. Characteristics Green on top and white on the bottom Divides evenly into 'forks' Not to be confused with Ramalina, which is green on both top and bottom and divides unevenly. Common name Oakmoss

Usnea is very sensitive to air pollution and so is normally only found growing in clean air environments. Some species of Usnea are more sensitive to air pollutants than others. Characteristics Generally grows hanging from tree branches Thread like, resembling a grey beard Common names Old Man's Beard, Beard Lichen, or Treemoss. Usnea has been used in medicine for at least 1,000 years. Usnic acid, found in most species, has strong antibiotic and antifungal properties This lichen is actually edible and high in vitamin C. Though we don't recommend trying it!

Usnea is very sensitive to air pollution and so is normally only found growing in clean air environments. Some species of Usnea are more sensitive to air pollutants than others. Characteristics Generally grows hanging from tree branches Thread like, resembling a grey beard Common names Old Man's Beard, Beard Lichen, or Treemoss. Usnea has been used in medicine for at least 1,000 years. Usnic acid, found in most species, has strong antibiotic and antifungal properties This lichen is actually edible and high in vitamin C. Though we don't recommend trying it!

Usnea is very sensitive to air pollution and so is normally only found growing in clean air environments. Some species of Usnea are more sensitive to air pollutants than others. Characteristics Generally grows hanging from tree branches Thread like, resembling a grey beard Common names Old Man's Beard, Beard Lichen, or Treemoss. Usnea has been used in medicine for at least 1,000 years. Usnic acid, found in most species, has strong antibiotic and antifungal properties This lichen is actually edible and high in vitamin C. Though we don't recommend trying it!

by John Gault, Industrial and Agricultural Painters, based in Montrose: 07768 604726 for anyone who needs a large corrugated iron-clad roof re-sprayed!