Herb Riddle's photos with the keyword: Lichen

We are in the middle of a local walk near our rented cottage here in Aberfoyle and we come across a rather attractive bridge (watch this space). On the railings my wife spots quite an amount of these lichen type growths. They are about 2-4cm high. To me I can well imagine to see some small fairy-like beings to pop from behind one. Enjoy full size.