Interested in using lichens to survey air pollution?
This is a good time to look at urban lichens, as levels of sulphur dioxide, air pollution and acid rain have been falling rapidly. Many leafy lichens are growing in sites in central London where they may not have been present for 200 years.
The urban lichens fold-out chart concentrates on the lichens found growing on stone and soil. The chart is illustrated with 49 colour photographs and includes an easy-to-use visual lichen identification key.
This chart is part of the FSC's range of fold-out charts, designed to help users identify of a wide range of plants and animals. Each chart is laminated to make it shower-proof and robust for use outdoors. Clear colour illustrations and text by experts in the subject make these valuable resources for all age groups.
Charts (folded) are approx 16.5cm x 24.5cm