Folliiocolous Lichens grow on leaves...
Phylloblastia inexpectata

©Raymond Small
Different to most lichens in the UK because this species grows on leaves. The picture shows a holly leaf that has lost its glossy sheen. This has been caused by the lichen which appears as tiny black dots. Identification confirmed with a microscope.
Lepraria Lichens are known as Dust Lichens.
Lepraria incana

©Raymond Small
Powdery lichen that grows on old silver birch trees. It is the commonest lichen in Eastern England.
Thank you to John Skinner and Brian Ecott for the identifications.
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