Lichen?

Lichen?

Observation - Lichen?. Description: This bright mauve coloured growth was found on a silver birch stump on acid soil. It appears to be a foliose lichen, but other opinion was that it was a fungus. The colour was very striking, could the very cold weather have affected it?

This bright mauve coloured growth was found on a silver birch stump on acid soil. It appears to be a foliose lichen, but other opinion was that it was a fungus. The colour was very striking, could the very cold weather have affected it?